This document summarizes a study on integrated disease management in silkworm Bombyx mori L. It discusses the major predisposing factors for silkworm diseases like constitution, nutrition, crowding, pathogens, and environment. It outlines the different aspects of integrated disease management including disinfection, hygiene maintenance, silkworm rearing management, and disease control measures. The results of rearings conducted during an unfavorable season show that the integrated approach adopted in the treatment batches led to significantly lower mortality from diseases compared to the control batches.
Presentation (1) diseases and pest of silkworm.Dev Dixit
pest of silkworm : Uzifly, Dermestid beetle. diseases: Grasserie,flacherie, muscardine, pebrine . pests and diseases of mulberry tree plant: morus alba, morus indica etc.
Presentation (1) diseases and pest of silkworm.Dev Dixit
pest of silkworm : Uzifly, Dermestid beetle. diseases: Grasserie,flacherie, muscardine, pebrine . pests and diseases of mulberry tree plant: morus alba, morus indica etc.
silk worm is a holo metabolous insect four stages are there in its life cycle. 1. Egg 2. Larva ( 5 instars) 3. Pupa 4. Adult. rearing of silkworms is called sericulture. Moriculture is the science of mulberry cultivation to rear silk worms for silk production. Bombyx mori feed specifically on mulberry leaves, Different types of silk worms. There are five major types of silk of commercial importance, obtained from different species of silkworms which in turn feed on a number of food plants: Except mulberry, other varieties of silks are generally termed as non mulberry silks. India has the unique distinction of producing all these commercial varieties of silk. SILK WORM TYPES ARE:- 1. Mulberry silk worm. 2. Tasar silk worm. 3. Oak Tasar silk worm. 4. Eri silk worm. 5. Muga silk worm. silk gland is modified salivary gland produces silk, The silk of silkworms is secreted by a pair of labial gland, known as silk glands. The silk glands lie ventral to the alimentary canal. In full grown larvae, these occupy most of the body cavity. The silk glands are tubular in shape with different diameters in different regions. Each gland has 3 distinct regions
Parasitoids and Predators, their attributes.Bhumika Kapoor
Insect parasitoids have an immature life stage that develops on or within a single insect host, ultimately killing the host, hence the value of parasitoids as natural enemies. Adult parasitoids are free-living and may be predaceous. Parasitoids are often called parasites, but the term parasitoid is more technically correct. Most beneficial insect parasitoids are wasps or flies, although some rove beetles (see Predators) and other insects may have life stages that are parasitoids.
where as the Major characteristics of arthropod predators includes adults and immatures are often generalists rather than specialists, they generally are larger than their prey, they kill or consume many prey males, females, immatures, and adults may be predatory and they attack immature and adult prey.
silk worm is a holo metabolous insect four stages are there in its life cycle. 1. Egg 2. Larva ( 5 instars) 3. Pupa 4. Adult. rearing of silkworms is called sericulture. Moriculture is the science of mulberry cultivation to rear silk worms for silk production. Bombyx mori feed specifically on mulberry leaves, Different types of silk worms. There are five major types of silk of commercial importance, obtained from different species of silkworms which in turn feed on a number of food plants: Except mulberry, other varieties of silks are generally termed as non mulberry silks. India has the unique distinction of producing all these commercial varieties of silk. SILK WORM TYPES ARE:- 1. Mulberry silk worm. 2. Tasar silk worm. 3. Oak Tasar silk worm. 4. Eri silk worm. 5. Muga silk worm. silk gland is modified salivary gland produces silk, The silk of silkworms is secreted by a pair of labial gland, known as silk glands. The silk glands lie ventral to the alimentary canal. In full grown larvae, these occupy most of the body cavity. The silk glands are tubular in shape with different diameters in different regions. Each gland has 3 distinct regions
Parasitoids and Predators, their attributes.Bhumika Kapoor
Insect parasitoids have an immature life stage that develops on or within a single insect host, ultimately killing the host, hence the value of parasitoids as natural enemies. Adult parasitoids are free-living and may be predaceous. Parasitoids are often called parasites, but the term parasitoid is more technically correct. Most beneficial insect parasitoids are wasps or flies, although some rove beetles (see Predators) and other insects may have life stages that are parasitoids.
where as the Major characteristics of arthropod predators includes adults and immatures are often generalists rather than specialists, they generally are larger than their prey, they kill or consume many prey males, females, immatures, and adults may be predatory and they attack immature and adult prey.
It describes everything about Sericulture (Silk Farming).
Types of Sericulture.
It's Historical Perspectives.
Global production of Silk.
How it can be done.What are the ways to do it.
Muga culture is endemic to Assam and practiced in this region since a long period. This PPT highlights the brief process and practice of Muga culture- form Soil to Silk.
Silkworm has developed an efficient host defense mechanism against invading microorganisms through their immunological and genetic resistance. Immunological responses in silkworm B.mori are provided by circulating haemocytes which play an important role in innate immune mechanism such as phagocytosis, cellular encapsulation, phenoloxidase cascade and synthesis of antimicrobial proteins which are effectively engaged in defense reactions against invading pathogens . Antimicrobial proteins are the armament that insects have developed to fight off the pathogens. Several such antimicrobial proteins have been reported from silkworm B.mori like cecropins, attacins, lebocin, moricin, gloverins, lysozyme, defensins and hemolin. Insects in general are observed to respond differentially to infection by pathogens. Such differences are genetically determined and have been extensively studied in silkworm to develop resistant breeds.
An entomopathogenic fungus can act as a parasite of insects and kills or seriously disables them.Targets are distributed among 10 insect orders:
Hemiptera (59.6%), Coleoptera (40.9%), Lepidoptera (17.5%), Thysanoptera (14.6%), Orthoptera (9.4%), Diptera (7.0%), Hymenoptera (2.9%), Isoptera (2.3%), Siphonoptera (1.2%), and Blattodea(0.6%).
Pulse beetle:
taxonomic classification
Life cycle
nature of damage
biology
Ecology
Management
Presentation By
MD. SARWAR JAHAN SHAUN
MS in entomology
Dept. of Agriculture
Bangladesh Agricultural University, mymensingh
Bangladesh
Mass production of Metarhizium anisopliae (Deuteromycota; Hyphomycetes)balram2424
Types of Entomopathogenic Fungi like
Verticillium lecanii
Beauveria bassiana
Nomuraea rileyi
Metarrhizium anisopliae(detailed procedure of mass production in bio control lab)
It is report on Mushroom cultivation . It shows the process about Mushroom growing in the farms. All the marketing strategy defined here. It based on commercial training that is held in 8th semester of B.Sc. agriculture final year according to ICAR module.
Disease managment in Mushroom A Presentation By Mr Allah Dad khan Former Dire...Mr.Allah Dad Khan
Disease managment in Mushroom A Presentation By Mr Allah Dad khan Former Director General Agriculture Extension KPK Province and Visiting Professor the University of Agriculture Peshawar Pakistan
Besides being a nuisance pest, ies pick up harmful bacteria from waste, disposed food and water. They potentially transmit a wide range of diseases including cholera and typhoid fever to people.
Skeem Saam in June 2024 available on ForumIsaac More
Monday, June 3, 2024 - Episode 241: Sergeant Rathebe nabs a top scammer in Turfloop. Meikie is furious at her uncle's reaction to the truth about Ntswaki.
Tuesday, June 4, 2024 - Episode 242: Babeile uncovers the truth behind Rathebe’s latest actions. Leeto's announcement shocks his employees, and Ntswaki’s ordeal haunts her family.
Wednesday, June 5, 2024 - Episode 243: Rathebe blocks Babeile from investigating further. Melita warns Eunice to stay clear of Mr. Kgomo.
Thursday, June 6, 2024 - Episode 244: Tbose surrenders to the police while an intruder meddles in his affairs. Rathebe's secret mission faces a setback.
Friday, June 7, 2024 - Episode 245: Rathebe’s antics reach Kganyago. Tbose dodges a bullet, but a nightmare looms. Mr. Kgomo accuses Melita of witchcraft.
Monday, June 10, 2024 - Episode 246: Ntswaki struggles on her first day back at school. Babeile is stunned by Rathebe’s romance with Bullet Mabuza.
Tuesday, June 11, 2024 - Episode 247: An unexpected turn halts Rathebe’s investigation. The press discovers Mr. Kgomo’s affair with a young employee.
Wednesday, June 12, 2024 - Episode 248: Rathebe chases a criminal, resorting to gunfire. Turf High is rife with tension and transfer threats.
Thursday, June 13, 2024 - Episode 249: Rathebe traps Kganyago. John warns Toby to stop harassing Ntswaki.
Friday, June 14, 2024 - Episode 250: Babeile is cleared to investigate Rathebe. Melita gains Mr. Kgomo’s trust, and Jacobeth devises a financial solution.
Monday, June 17, 2024 - Episode 251: Rathebe feels the pressure as Babeile closes in. Mr. Kgomo and Eunice clash. Jacobeth risks her safety in pursuit of Kganyago.
Tuesday, June 18, 2024 - Episode 252: Bullet Mabuza retaliates against Jacobeth. Pitsi inadvertently reveals his parents’ plans. Nkosi is shocked by Khwezi’s decision on LJ’s future.
Wednesday, June 19, 2024 - Episode 253: Jacobeth is ensnared in deceit. Evelyn is stressed over Toby’s case, and Letetswe reveals shocking academic results.
Thursday, June 20, 2024 - Episode 254: Elizabeth learns Jacobeth is in Mpumalanga. Kganyago's past is exposed, and Lehasa discovers his son is in KZN.
Friday, June 21, 2024 - Episode 255: Elizabeth confirms Jacobeth’s dubious activities in Mpumalanga. Rathebe lies about her relationship with Bullet, and Jacobeth faces theft accusations.
Monday, June 24, 2024 - Episode 256: Rathebe spies on Kganyago. Lehasa plans to retrieve his son from KZN, fearing what awaits.
Tuesday, June 25, 2024 - Episode 257: MaNtuli fears for Kwaito’s safety in Mpumalanga. Mr. Kgomo and Melita reconcile.
Wednesday, June 26, 2024 - Episode 258: Kganyago makes a bold escape. Elizabeth receives a shocking message from Kwaito. Mrs. Khoza defends her husband against scam accusations.
Thursday, June 27, 2024 - Episode 259: Babeile's skillful arrest changes the game. Tbose and Kwaito face a hostage crisis.
Friday, June 28, 2024 - Episode 260: Two women face the reality of being scammed. Turf is rocked by breaking
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Meet Dinah Mattingly – Larry Bird’s Partner in Life and Loveget joys
Get an intimate look at Dinah Mattingly’s life alongside NBA icon Larry Bird. From their humble beginnings to their life today, discover the love and partnership that have defined their relationship.
Young Tom Selleck: A Journey Through His Early Years and Rise to Stardomgreendigital
Introduction
When one thinks of Hollywood legends, Tom Selleck is a name that comes to mind. Known for his charming smile, rugged good looks. and the iconic mustache that has become synonymous with his persona. Tom Selleck has had a prolific career spanning decades. But, the journey of young Tom Selleck, from his early years to becoming a household name. is a story filled with determination, talent, and a touch of luck. This article delves into young Tom Selleck's life, background, early struggles. and pivotal moments that led to his rise in Hollywood.
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Early Life and Background
Family Roots and Childhood
Thomas William Selleck was born in Detroit, Michigan, on January 29, 1945. He was the second of four children in a close-knit family. His father, Robert Dean Selleck, was a real estate investor and executive. while his mother, Martha Selleck, was a homemaker. The Selleck family relocated to Sherman Oaks, California. when Tom was a child, setting the stage for his future in the entertainment industry.
Education and Early Interests
Growing up, young Tom Selleck was an active and athletic child. He attended Grant High School in Van Nuys, California. where he excelled in sports, particularly basketball. His tall and athletic build made him a standout player, and he earned a basketball scholarship to the University of Southern California (U.S.C.). While at U.S.C., Selleck studied business administration. but his interests shifted toward acting.
Discovery of Acting Passion
Tom Selleck's journey into acting was serendipitous. During his time at U.S.C., a drama coach encouraged him to try acting. This nudge led him to join the Hills Playhouse, where he began honing his craft. Transitioning from an aspiring athlete to an actor took time. but young Tom Selleck became drawn to the performance world.
Early Career Struggles
Breaking Into the Industry
The path to stardom was a challenging one for young Tom Selleck. Like many aspiring actors, he faced many rejections and struggled to find steady work. A series of minor roles and guest appearances on television shows marked his early career. In 1965, he debuted on the syndicated show "The Dating Game." which gave him some exposure but did not lead to immediate success.
The Commercial Breakthrough
During the late 1960s and early 1970s, Selleck began appearing in television commercials. His rugged good looks and charismatic presence made him a popular brand choice. He starred in advertisements for Pepsi-Cola, Revlon, and Close-Up toothpaste. These commercials provided financial stability and helped him gain visibility in the industry.
Struggling Actor in Hollywood
Despite his success in commercials. breaking into large acting roles remained a challenge for young Tom Selleck. He auditioned and took on small parts in T.V. shows and movies. Some of his early television appearances included roles in popular series like Lancer, The F.B.I., and Bracken's World. But, it would take a
Create a Seamless Viewing Experience with Your Own Custom OTT Player.pdfGenny Knight
As the popularity of online streaming continues to rise, the significance of providing outstanding viewing experiences cannot be emphasized enough. Tailored OTT players present a robust solution for service providers aiming to enhance their offerings and engage audiences in a competitive market. Through embracing customization, companies can craft immersive, individualized experiences that effectively hold viewers' attention, entertain them, and encourage repeat usage.
From the Editor's Desk: 115th Father's day Celebration - When we see Father's day in Hindu context, Nanda Baba is the most vivid figure which comes to the mind. Nanda Baba who was the foster father of Lord Krishna is known to provide love, care and affection to Lord Krishna and Balarama along with his wife Yashoda; Letter’s to the Editor: Mother's Day - Mother is a precious life for their children. Mother is life breath for her children. Mother's lap is the world happiness whose debt can never be paid.
Experience the thrill of Progressive Puzzle Adventures, like Scavenger Hunt Games and Escape Room Activities combined Solve Treasure Hunt Puzzles online.
Tom Selleck Net Worth: A Comprehensive Analysisgreendigital
Over several decades, Tom Selleck, a name synonymous with charisma. From his iconic role as Thomas Magnum in the television series "Magnum, P.I." to his enduring presence in "Blue Bloods," Selleck has captivated audiences with his versatility and charm. As a result, "Tom Selleck net worth" has become a topic of great interest among fans. and financial enthusiasts alike. This article delves deep into Tom Selleck's wealth, exploring his career, assets, endorsements. and business ventures that contribute to his impressive economic standing.
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Early Life and Career Beginnings
The Foundation of Tom Selleck's Wealth
Born on January 29, 1945, in Detroit, Michigan, Tom Selleck grew up in Sherman Oaks, California. His journey towards building a large net worth began with humble origins. , Selleck pursued a business administration degree at the University of Southern California (USC) on a basketball scholarship. But, his interest shifted towards acting. leading him to study at the Hills Playhouse under Milton Katselas.
Minor roles in television and films marked Selleck's early career. He appeared in commercials and took on small parts in T.V. series such as "The Dating Game" and "Lancer." These initial steps, although modest. laid the groundwork for his future success and the growth of Tom Selleck net worth. Breakthrough with "Magnum, P.I."
The Role that Defined Tom Selleck's Career
Tom Selleck's breakthrough came with the role of Thomas Magnum in the CBS television series "Magnum, P.I." (1980-1988). This role made him a household name and boosted his net worth. The series' popularity resulted in Selleck earning large salaries. leading to financial stability and increased recognition in Hollywood.
"Magnum P.I." garnered high ratings and critical acclaim during its run. Selleck's portrayal of the charming and resourceful private investigator resonated with audiences. making him one of the most beloved television actors of the 1980s. The success of "Magnum P.I." played a pivotal role in shaping Tom Selleck net worth, establishing him as a major star.
Film Career and Diversification
Expanding Tom Selleck's Financial Portfolio
While "Magnum, P.I." was a cornerstone of Selleck's career, he did not limit himself to television. He ventured into films, further enhancing Tom Selleck net worth. His filmography includes notable movies such as "Three Men and a Baby" (1987). which became the highest-grossing film of the year, and its sequel, "Three Men and a Little Lady" (1990). These box office successes contributed to his wealth.
Selleck's versatility allowed him to transition between genres. from comedies like "Mr. Baseball" (1992) to westerns such as "Quigley Down Under" (1990). This diversification showcased his acting range. and provided many income streams, reinforcing Tom Selleck net worth.
Television Resurgence with "Blue Bloods"
Sustaining Wealth through Consistent Success
In 2010, Tom Selleck began starring as Frank Reagan i
Maximizing Your Streaming Experience with XCIPTV- Tips for 2024.pdfXtreame HDTV
In today’s digital age, streaming services have become an integral part of our entertainment lives. Among the myriad of options available, XCIPTV stands out as a premier choice for those seeking seamless, high-quality streaming. This comprehensive guide will delve into the features, benefits, and user experience of XCIPTV, illustrating why it is a top contender in the IPTV industry.
As a film director, I have always been awestruck by the magic of animation. Animation, a medium once considered solely for the amusement of children, has undergone a significant transformation over the years. Its evolution from a rudimentary form of entertainment to a sophisticated form of storytelling has stirred my creativity and expanded my vision, offering limitless possibilities in the realm of cinematic storytelling.
In the vast landscape of cinema, stories have been told, retold, and reimagined in countless ways. At the heart of this narrative evolution lies the concept of a "remake". A successful remake allows us to revisit cherished tales through a fresh lens, often reflecting a different era's perspective or harnessing the power of advanced technology. Yet, the question remains, what makes a remake successful? Today, we will delve deeper into this subject, identifying the key ingredients that contribute to the success of a remake.
Panchayat Season 3 - Official Trailer.pdfSuleman Rana
The dearest series "Panchayat" is set to make a victorious return with its third season, and the fervor is discernible. The authority trailer, delivered on May 28, guarantees one more enamoring venture through the country heartland of India.
Jitendra Kumar keeps on sparkling as Abhishek Tripathi, the city-reared engineer who ends up functioning as the secretary of the Panchayat office in the curious town of Phulera. His nuanced depiction of a young fellow exploring the difficulties of country life while endeavoring to adjust to his new environmental factors has earned far and wide recognition.
Neena Gupta and Raghubir Yadav return as Manju Devi and Brij Bhushan Dubey, separately. Their dynamic science and immaculate acting rejuvenate the hardships of town administration. Gupta's depiction of the town Pradhan with an ever-evolving outlook, matched with Yadav's carefully prepared exhibition, adds profundity and credibility to the story.
New Difficulties and Experiences
The trailer indicates new difficulties anticipating the characters, as Abhishek keeps on wrestling with his part in the town and his yearnings for a superior future. The series has reliably offset humor with social editorial, and Season 3 looks ready to dig much more profound into the intricacies of rustic organization and self-awareness.
Watchers can hope to see a greater amount of the enchanting and particular residents who have become fan top picks. Their connections and the one of a kind cut of-life situations give a reviving and interesting portrayal of provincial India, featuring the two its appeal and its difficulties.
A Mix of Humor and Heart
One of the signs of "Panchayat" is its capacity to mix humor with sincere narrating. The trailer features minutes that guarantee to convey giggles, as well as scenes that pull at the heartstrings. This equilibrium has been a critical calculate the show's prosperity, resounding with crowds across different socioeconomics.
Creation Greatness
The creation quality remaining parts first rate, with the beautiful setting of Phulera town filling in as a scenery that upgrades the narrating. The meticulousness in portraying provincial life, joined with sharp composition and solid exhibitions, guarantees that "Panchayat" keeps on hanging out in the packed web series scene.
Expectation and Delivery
As the delivery date draws near, expectation for "Panchayat" Season 3 is at a record-breaking high. The authority trailer has previously created critical buzz, with fans enthusiastically anticipating the continuation of Abhishek Tripathi's excursion and the new undertakings that lie ahead in Phulera.
All in all, the authority trailer for "Panchayat" Season 3 recommends that watchers are in for another drawing in and engaging ride. Yet again with its charming characters, convincing story, and ideal mix of humor and show, the new season is set to enamor crowds. Write in your schedules and prepare to get back to the endearing universe of "Panchayat."
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Crazyjamjam, the TikTok star everyone's talking about! Uncover her secrets to success, viral trends, and more in this exclusive feature on Blog Eternal.
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240529_Teleprotection Global Market Report 2024.pdfMadhura TBRC
The teleprotection market size has grown
exponentially in recent years. It will grow from
$21.92 billion in 2023 to $28.11 billion in 2024 at a
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exponential growth in the next few years. It will grow
to $70.77 billion in 2028 at a compound annual
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From Slave to Scourge: The Existential Choice of Django Unchained. The Philos...Rodney Thomas Jr
#SSAPhilosophy #DjangoUnchained #DjangoFreeman #ExistentialPhilosophy #Freedom #Identity #Justice #Courage #Rebellion #Transformation
Welcome to SSA Philosophy, your ultimate destination for diving deep into the profound philosophies of iconic characters from video games, movies, and TV shows. In this episode, we explore the powerful journey and existential philosophy of Django Freeman from Quentin Tarantino’s masterful film, "Django Unchained," in our video titled, "From Slave to Scourge: The Existential Choice of Django Unchained. The Philosophy of Django Freeman!"
From Slave to Scourge: The Existential Choice of Django Unchained – The Philosophy of Django Freeman!
Join me as we delve into the existential philosophy of Django Freeman, uncovering the profound lessons and timeless wisdom his character offers. Through his story, we find inspiration in the power of choice, the quest for justice, and the courage to defy oppression. Django Freeman’s philosophy is a testament to the human spirit’s unyielding drive for freedom and justice.
Don’t forget to like, comment, and subscribe to SSA Philosophy for more in-depth explorations of the philosophies behind your favorite characters. Hit the notification bell to stay updated on our latest videos. Let’s discover the principles that shape these icons and the profound lessons they offer.
Django Freeman’s story is one of the most compelling narratives of transformation and empowerment in cinema. A former slave turned relentless bounty hunter, Django’s journey is not just a physical liberation but an existential quest for identity, justice, and retribution. This video delves into the core philosophical elements that define Django’s character and the profound choices he makes throughout his journey.
Link to video: https://youtu.be/GszqrXk38qk
Scandal! Teasers June 2024 on etv Forum.co.zaIsaac More
Monday, 3 June 2024
Episode 47
A friend is compelled to expose a manipulative scheme to prevent another from making a grave mistake. In a frantic bid to save Jojo, Phakamile agrees to a meeting that unbeknownst to her, will seal her fate.
Tuesday, 4 June 2024
Episode 48
A mother, with her son's best interests at heart, finds him unready to heed her advice. Motshabi finds herself in an unmanageable situation, sinking fast like in quicksand.
Wednesday, 5 June 2024
Episode 49
A woman fabricates a diabolical lie to cover up an indiscretion. Overwhelmed by guilt, she makes a spontaneous confession that could be devastating to another heart.
Thursday, 6 June 2024
Episode 50
Linda unwittingly discloses damning information. Nhlamulo and Vuvu try to guide their friend towards the right decision.
Friday, 7 June 2024
Episode 51
Jojo's life continues to spiral out of control. Dintle weaves a web of lies to conceal that she is not as successful as everyone believes.
Monday, 10 June 2024
Episode 52
A heated confrontation between lovers leads to a devastating admission of guilt. Dintle's desperation takes a new turn, leaving her with dwindling options.
Tuesday, 11 June 2024
Episode 53
Unable to resort to violence, Taps issues a verbal threat, leaving Mdala unsettled. A sister must explain her life choices to regain her brother's trust.
Wednesday, 12 June 2024
Episode 54
Winnie makes a very troubling discovery. Taps follows through on his threat, leaving a woman reeling. Layla, oblivious to the truth, offers an incentive.
Thursday, 13 June 2024
Episode 55
A nosy relative arrives just in time to thwart a man's fatal decision. Dintle manipulates Khanyi to tug at Mo's heartstrings and get what she wants.
Friday, 14 June 2024
Episode 56
Tlhogi is shocked by Mdala's reaction following the revelation of their indiscretion. Jojo is in disbelief when the punishment for his crime is revealed.
Monday, 17 June 2024
Episode 57
A woman reprimands another to stay in her lane, leading to a damning revelation. A man decides to leave his broken life behind.
Tuesday, 18 June 2024
Episode 58
Nhlamulo learns that due to his actions, his worst fears have come true. Caiphus' extravagant promises to suppliers get him into trouble with Ndu.
Wednesday, 19 June 2024
Episode 59
A woman manages to kill two birds with one stone. Business doom looms over Chillax. A sobering incident makes a woman realize how far she's fallen.
Thursday, 20 June 2024
Episode 60
Taps' offer to help Nhlamulo comes with hidden motives. Caiphus' new ideas for Chillax have MaHilda excited. A blast from the past recognizes Dintle, not for her newfound fame.
Friday, 21 June 2024
Episode 61
Taps is hungry for revenge and finds a rope to hang Mdala with. Chillax's new job opportunity elicits mixed reactions from the public. Roommates' initial meeting starts off on the wrong foot.
Monday, 24 June 2024
Episode 62
Taps seizes new information and recruits someone on the inside. Mary's new job
2. 2
Study on Integrated Diseases Management
in Silkworm, Bombyx mori L.
ANANTA MUKTYARSING PARIHAR
Msc Agri (Agril.Entomology)
Roll No:PG14-ENT1625
Seminar Topic
DEPT. OF AGRIL. ENTOMOLOGY
DR PANJABRAO DESHMUKH KRUSHI VIDYAPEETH,AKOLA
Under the Guidance of
Dr. D. B. Undirwade
Head Dept.of Agril.Entomology
3. 3
INTRODUCTION
Disease is a condition in which a state of physiological
equilibrium of the host with the environment (i.e.
health) becomes unbalanced.
Disease usually has a primary cause but there may be
also be a complex web of secondary causes
contributing to disease incidence (pre-disposing
factors) including environmental conditions.
The major constraints in silk cocoon production are
the occurrence of diseases in silkworm.
In India, the annual crop loss due to silkworm diseases
is to an extent of 15-20% (Baig & Pradeep Kumar, 1987,
Baig et al., 1990).
Contd….
4. 4
In addition to different pathogens, viz. viral, bacterial
fungal and protozoan, environmental and nutritional
factors also play a significant role towards susceptibility of
the host to infection and development of diseases.
No individual preventive measure is sufficient to check the
disease incidence and hence an integration of several
innovative measures have been developed for the
management of silkworm diseases.
Contd…
5. 5
OBJECTIVE OF THE STUDY
To study the predisposing factors for the cause of
silkworm diseases.
To study the importance of different aspects of
integrated disease management strategy towards
prevention and control of silkworm diseases
Contd…
6. 6
PREDISPOSING FACTORS CAUSING
SILKWORM DISEASES
The predisposing factors responsible for
occurrence of silkworm diseases are:
Constitution of the silkworm
Nutritional status
Crowding
Pathogen Load
Environmental factors
Contd…
7. 7
DIFFERENT ASPECTS OF INTEGRATED DISEASE
MANAGEMENT
Contd….
DISINFECTION
Disinfection means the selective elimination of
undesirable micro-organisms. In sericulture it is the
destruction or inactivation of disease causing germs. In
sericulture, the commonly used disinfectants are
formaldehyde, chlorine compounds, paraformaldehyde,
slaked lime powder, etc., either individually or in
combinations. Bed disinfectants such as Labex,
Sericilllin, Vijetha, etc . are used. Disinfection is the
single most important aspect of integrated disease
management.
8. IMPORTANCE OF HYGIENE
Due importance towards strict adherence to
maintenance of hygienic conditions in and around the
rearing house is a prerequisite for a successful cocoon
harvest.
The hygienic conditions are summarized as:
Clean the rearing house and appliances of dust and dirt
with water 5 days before brushing.
Sun dry the appliances in direct sunlight for 6 hours.
Sprinkle 5% bleaching powder in slaked lime
surrounding the rearing house once in 2-3 days
Avoid injury to diseased larvae.
After bed cleaning, wipe the floor with 2% bleaching
powder in 0.3% slaked lime.
8Contd..
9. Provide optimum bed space and keep the bed dry.
Before entering into the rearing house, disinfect the hands
by washing in dettol water or 2% bleaching powder solution
in 0.3% slaked lime.
Disinfect the feet by walk over 5% bleaching powder in
slaked lime on a foot mat at the entrance of rearing room.
Pick up diseased/ unequal/ suspected diseased worms before
bed cleaning every day using forceps or chawki stick and
dispose them into 5% bleaching powder in slaked lime in a
basin.
Pick the diseased or dead larvae and flimsy cocoons from the
mountage and burn them.
9Contd…
10. 10
1st
inst. 2nd
inst. 3rd
inst. 4th
inst. 5th
inst.
Temp. (º C) 27-28 27-28 26-27 24-25 23-24
R.H. (%) 85-90 85-90 80-85 75-80 70-75
SILKWORM REARING MANAGEMENT
Location of Rearing House:
Orientation of the room should be such that the interior is
protected from the direct sunlight, as it is harmful to worms.
The best orientation of rearing room will be north and south,
the room should be with proper ventilation.
Env. Cond. of the Rearing House (Temp. and R.H.):
The optimum Temperature and Humidity for Silkworm
rearing
Contd…
11. Photoperiod:
Provision of 16 -18 hours of light and 6 - 8 hours of
darkness in rearing room is essential.
Air:
The rearing room should be well ventilated to
circulate fresh air.
Spacing:
The recommended spacing of rearing bed
Instar Spacing in Sq. ft.( for 100dfls)
I 6-18
II 18-54
III 54-100
IV 100-200
V 20-400 11Contd…
12. BED CLEANING:
Bed cleaning should be done with proper mesh size of net as
per the stage. Recommended bed cleaning is once in 1st instar
and twice in 2nd instar and from 3rd stage daily in the morning
hours.
CARE DURING MOULTING
When 90% of the larvae settled for moulting no feeding to be
given to worms. Slaked lime to be dusted to reduce bed
humidity. Rearing bed maintained as thin to reduce bed
humidity.
12Contd…
13. 13
MOUNTING DENSITY & ENVIRONMENT
The recommended mounting density for Multi X Multi hybrid
is 60 larvae / sq. ft, for Bi X BI hybrid 40 larvae/ sq. ft, and
for multi X Bi hybrid is 50 larvae/Sq. ft.
MOUNTING ENVIRONMENT
Proper environment in the mounting room should be
maintained to get a good crop (24 - 25°C ,60 – 70 % R.H.).
HARVESTING AND STORAGE OF LEAVES
Harvesting should be done during cooler hours of the day.
The leaves should be properly preserved in leaf chamber,
covered with wet gunny cloth. The leaf moisture could be
retained by spraying water over the leaf at frequent intervals
during summer
Contd…
14. 14
SELECTION OF SILKWORM BREED
During favourable condition, under West Bengal condition it
is advisable to rear Multi X Bi hybrids and during
unfavourable condition Multi X Multi.
SELECTION OF IMPROVED MULBERRY VARIETY AND
QUALITY OF LEAVES
Choice of mulberry variety for silkworm rearing is very
important for harvesting a good crop. S- 1 and S- 1635 is
widely being practice by the sericulture farmers due to its
qualitative and quantitative features. The mulberry leaf is
the exclusive food of the silkworm Bombyx mori, L. and it is
essential that mulberry leaves are good and of suitable
quality for the silkworm. Leaf quality is the major contributor
for the successful rearing and quality of cocoon produced.
Contd…
15. 15
SILKWORM DISEASE SURVEY AND DISEASE
SURVEILLANCE
Most of the silkworm diseases are season specific, hence
Forewarning system of diseases should be there for
effective and timely management of diseases.
CONTROL OF MULBERRY PESTS
Incidence of different diseases in silkworm may be due to
various sources of secondary contaminations including
alternate hosts in and around mulberry garden.
It is essential to control mulberry pests not only to increase
the yield and quality of mulberry but also to prevent
silkworm diseases.
Contd…
16. DISEASE DIAGNOSIS
Early detection of silkworm disease is an important step in
management of disease
Generally in silk worm develops their disease symptoms at
the late stage of disease development
The period left between the development of characteristic
symptoms and death is to short to adopt the curative
measures.
Early detected of diseases during rearing and curative
measure should be taken at early stage to avoid secondary
infection.
16Contd…
17. CONSTRAINTS IN MANAGEMENT OF
DISEASES IN SILKWORM REARING
The major constraint in silkworm disease management is the
need for a disinfectant suitable to the infrastructural
facilities available with sericulturists
Most of the farmers do not have rearing houses as per
required standard
Non adoption of required hygienic condition to be
maintained during the course of rearing
Unavailability of technology which could diagnose disease
incidence during early stage of infection.
A code of conduct for rearing of silkworm needs to be
adopted to ensure survival of silkworm and to get good
cocoon crop
17Contd…
20. 20
Symptoms:
The larvae will be sluggish with swollen intersegmantal region
The integument of diseases larvae will be fragile and brakes
easily
On infury milky fluid containing many polyhedral inclusion
bodies oozes out from the larval body
The diseases larvae do not settle for moult and showshining
integument
The larvae appear to be restless
The dead larvae hand by hind legs head downward
21. 21
Management
1.Sun drying of rearing appliances for one/two days
2.Disinfection of rearing room and appliances with 5% bleaching
powder
3.Disinfection of worms, trays and discarding of diseased worms
4.Ensure proper ventilation and air circulation
5.Provide proper bed spacing
6.Feed the larvae with nutritious mulberry leaves
7.Collect and burn infected larvae, faecal matter and bed refuses
8.Early diagnosis and rejection of infected lots
9.Dust the bed disinfectant, Vijetha (or) Resham Keet Oushadh on
the larvae, after each moult and ½ hr. before resumption of
feeding (3 kg/100 dfl).
10.Spray 1% of extract of Psoralea coryleifolia on mulberry leaves,
shade dry and feed worms once during third instars.
22. 22
2. Bacterial Diseases
Bacteria and viruses cause the disease individually or in
combination.
Fluctuating temperature and humidity and poor quality
mulberry predispose the disease development.
23. 23
Symptoms:
The diseased larvae will be stunted in growth, dill
lethargic soft and appear flaccid
The cephalothoracic region may be translucent
The larvae vomit gut juice, develop dysentery and
excrete chain type fecus.
The larvae on death putrefy, develop different and emit
foul smell
24. 24
Management
1.Maintenance of hygienic condition
2.Disinfection of rearing room and appliances
3.Disinfection of worms, trace and discarding of sick worms
4.Avoid injury to the worms, overcrowding of trays and
accumulation of faeces in the rearing bed
5.Sound management, improving the rearing environment and
feed stuff
6.Feeding the larvae with healthy nutritious leaves.
7.Early diagnosis and rejection of infected lots
8.Avoid spraying commercial B. t. insecticides in nearby mulberry
field.
9.Apply antibiotics like Streptomycin/Tetracyclin/Ampicillin
26. 26
White muscadine is caused by a fungus Beauveria bassiana and
the green muscadine is caused by a fungus Spicaria prasina.
Aspergillosis is common in young age silkworms and the
infected larvae will be lustrous and die. Dark green (Aspergillus
flavus) or rusty brown ( Aspergillus tamari)mycelial cluster are
seen on the dead body.
27. 27
The diseases larvae prior to death will be lethargic and on
death are flaccid
oil specks may be seen on the surface of larvae
They gradually be fome hard, dry and mummify into a white
or green coloured structure
The diseases pupae will be hard, lighter and mummifies
Symptoms:
28. 28
Magagement
1.Sundry the rearing appliances.
2.Disinfect the rearing room and utensils with 5 per cent
bleaching powder
3.Avoid low temperature and high humidity in the
rearing room
4.Keep the rearing bed thin and dry
5.Early diagnosis and rejection of infected lots
6.Apply Dithane M45 (3 kg/100 dfls) / Vijetha
supplement as disinfectant on the larvae
7.Disinfect rearing rooms and trays with 4 per cent
pentachlorophenol to control Aspergillosis.
29. 29
4. Protozoan disease
Pebrine
Diseases larvae show slow growth, undersized body and poor
appetite.
Diseases larvae reveal pale and flaccid body. Tiny black spots
appear on larval integument.
Dead larvae remain rubbery and do not undergo putrefaction
shortly after death.
Symptoms:
30. 30
Management
1.Produce healthy eggs
2.Disinfection of rearing room and utensils
3.Maintain strict hygienic conditions during rearing
4.Surface disinfect the layings in 2 per cent formalin for
10 minutes before incubation.
5.Collect and burn the diseased eggs, larvae, pupae and
moths, bed refuses, faecal pellets, etc
31. 31
For this study two rearings were conducted during July –
September, 2011 (unfavourable season).
There was one treatment and one control batch and each
having 3(three) replications.
After 1st
moult 150 healthy worms for the 1st
rearing and 200
worms for 2nd
rearing for each replication in the treatment and
control were selected.
Two multivoltine breeds were taken for the study; Nistari (M)
for the 1st rearing and M12 (W) for the second.
Frequency of feeding was four times a day; at 6 am, 10 am, 4
pm and 8 pm.
Labex was used as the bed disinfectant in the treatment and
applied as per recommendation.
Technology in respect to Package & Practices developed by
Silkworm Physiology & RTI section of this institute was
adopted for the treatment lot.
Contd…
32. 32
RESULTS
Results from the two rearing conducted are depicted in
Table 1, 2 and 3. The results showed that in the treatment,
in which integrated approach towards management of
silkworm diseases were adopted caused significant
reduction in mortality due to diseases against the control in
both the rearings conducted.
Contd…
33. 33
Table: 1. Comparative Rearing Performance (July-Aug’11)
Race: Nistari (M) Date of Brushing: 11.07.2011
Treatment/
Replication
No. of
larva
kept
Larval Mortality
(%)
Total
mor-
tality
(%)
Wt. of
10
matur.
larvae
ERR
%
(by
no)
Yield/
100
dfls
(by
No.)
Gra Fla M
u
s
Total
T
Rep- I 150 2.0 8.66 0 10.66 15.33 27.02 76 30400
Rep- II 150 0 6.66 0 6.67 12.0 26.67 81 32533
Rep-III 150 2.66 10.67 0 13.33 22.0 26.64 75 19866
Average 150 1.55 8.66 0 10.22 16.44 26.77 77 30933
C
Rep- I 150 10.67 11.33 0 22.0 30.0 24.63 63 25333
Rep- II 150 6.67 8.66 0 22.0 30.0 24.63 63 25333
Rep-III 150 8.0 8.66 0 16.66 23.33 25.62 66 26400
Average 150 8.45 9.55 0 18.0 24.66 25.38 66 26311Contd…Gain % (by No) = 17.56 %
34. 34
Table: 2. Comparative Rearing Performance (Aug-Sep’11)
Race: M 12 (w) Date of Brushing: 08.08.2011
Treatment/
Replication
No. of
larva
kept
Larval Mortality
(%)
Total
mora
lity
(%)
Wt. of
10
matur
ed
larvae
ERR
%
(by
No)
Yield/
100
dfls
(by
No.)
Gra Fla M
us
Total
T
Rep- I 200 0 9 0 9 12.5 22.98 60 23800
Rep- II 200 0 10 0 11 15.0 23.97 55 22000
Rep- III 200 1 8.5 0 8.5 13.5 22.20 51 20200
Average 200 0.33 9.17 0 9.50 13.7 23.05 55 22000
C
Rep- I 200 1.0 17.5 0 18.5 23.5 22.04 44 17600
Rep- II 200 0 19.5 0 19.5 26.5 21.64 45 18000
Rep- III 200 0 18 0 18 27.0 22.02 41 16200
Average 200 0.33 18.33 0 18.67 25.7 21.90 43 17267Contd…Gain % (by No) = 27.41 %
35. 36
RESULTS
The reduction in total mortality (larval and pupal) was 8.22%
and 12% respectively during the 1st
& 2nd
rearing.
ERR was also higher in the treatment than in the control; 77
% in treatment against 66 % in control during the 1st crop
and 55 % in treatment against 43 % in control during the
2nd crop.
Yield gain (by No.) was recorded to be 17.56 % in the first
crop and 27.41 % in the second crop.
This difference in yield gain may be attributed to the
difference in the two multivoltine breeds selected for the
study and it may be inferred that during unfavourable
condition M12 (W) is a better performer than Nistari (M).
However post cocoon characters did not show any significant
variation between the treatment and control.
Contd…
36. 37
DISCUSSION
The findings from our study are in agreement with those of
Deviah (1986), Liu and Zhong, (1988). Results from our study
revealed that higher ERR was achieved in the treatment
against the control in both the crops conducted during
unfavourable seasons. This was achieved by integration of not
a single but a multitude of approaches viz. proper disinfection
of the rearing room and appliances, use of bed disinfectant,
spacing as per recommendations, selection of breeds for
unfavourable season etc.
Prevention is better than Cure” is the correct approach and
that should be adopted in integrated disease control. This
means that one should go about actively preventing disease
before it occurs, and it is only when preventive measures are
in force that we can hope to effectively control the occurrence
and spread of disease.
Contd…