This document discusses insect pest losses in stored grains and methods for their management. Some key points:
- Stored grain insects can cause 9-20% losses annually worldwide, with over 100 million tons lost to improper storage.
- In India, around 8.5% of total annual grain production is lost during post-harvest handling and storage.
- Detection methods for storage pests include acoustic, near infrared spectroscopy, and x-ray imaging. Nanoparticles like silver, silica, zinc oxide and others are also used for control.
- Management strategies include physical controls like temperature, moisture and oxygen regulation. Traps, botanical extracts, growth regulators, and fumigation are also discussed
Novel insecticides, New chemistry, Novel mode of action, New group of insecticides, New insect control chemicals, Novel chemicals for insect management
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)
Novel insecticides, New chemistry, Novel mode of action, New group of insecticides, New insect control chemicals, Novel chemicals for insect management
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)
The IRAC Mode of Action (MoA) classification provides growers, advisors, extension staff, consultants and crop protection professionals with a guide to the selection of acaricides or insecticides for use in an effective and sustainable acaricide or insecticide resistance management (IRM) strategy.
Rules for inclusion of a compound in the MoA list
Names To be included in the active list, compounds must have, or be very close to having, a minimum of one registered use in at least one country.
when more than one active ingredient in that chemical sub-group is registered for use, the chemical sub-group name is used.
when only one active ingredient is registered for use, the name of that exemplifying active ingredient may be use
Impact of abamectin, Bacillus thuriengiensis and Neem oil extract on Aphis go...Open Access Research Paper
A study on the control of watermelon pests was conducted in Western region of Cameroon. The trial was laided on a randomised complete block design with three replications at the University of Dschang farm from December 27, 2019 to April 10, 2020 (dry season). The treatments were T1 (control plot), T2 Biotrin (Abamectin 5% at 375ml/ha), T3 Antario (Bacillus thuringiensis 1.4%+abamectin 0.1% at 375g/ha), T4 Neem oil (0.3 to 1% Azadirachtin) at 7l/ha, 400 H2O/ha) and T5 (Emamectin benzoate 50g/kg, 250g/ha). Pest abundance, leaf infestation rate, plant growth parameters and yields were assessed weekly from 26 days after sowing to three weeks before harvest. The results showed that Aphis gossypii (Hemiptera: Aphididae) the major pest (39.54±7.15) and Bemisia tabaci (Hemiptera: Aleyrodidae) (1.64±0.16) the second host infested watermelon. The peak of the leaf infestation rate is 20.97% at 40 DAS. The number of aphids was higher at 54DAS (71.34±26.30) and for whiteflies at 68 DAS (2.83±0.54). The effect of the treatments was significant (P>0.05) for all parameters. The control plot was more infested with highest mean leaf infestation rate, number of Aphids and whiteflies respectively 29.6± 2.30%; 158.03±29.59; 1.04±0.20 than Biotrin less attacked (4.11 0.89%; 2.21±0.4; 0.89±0.2). Biotrin, neem oil, Antario and Emacot are comparable for all parameters. In summary, the lowest yield was obtained in the control plot (35.71±2.66t/ha) but was not significantly different (P˃0.05) from those of the other plots. Biotrin, neem oil and Antario are bioinsecticides alternatives for Emacot and it should be applied before the 40DAS.
The IRAC Mode of Action (MoA) classification provides growers, advisors, extension staff, consultants and crop protection professionals with a guide to the selection of acaricides or insecticides for use in an effective and sustainable acaricide or insecticide resistance management (IRM) strategy.
Rules for inclusion of a compound in the MoA list
Names To be included in the active list, compounds must have, or be very close to having, a minimum of one registered use in at least one country.
when more than one active ingredient in that chemical sub-group is registered for use, the chemical sub-group name is used.
when only one active ingredient is registered for use, the name of that exemplifying active ingredient may be use
Impact of abamectin, Bacillus thuriengiensis and Neem oil extract on Aphis go...Open Access Research Paper
A study on the control of watermelon pests was conducted in Western region of Cameroon. The trial was laided on a randomised complete block design with three replications at the University of Dschang farm from December 27, 2019 to April 10, 2020 (dry season). The treatments were T1 (control plot), T2 Biotrin (Abamectin 5% at 375ml/ha), T3 Antario (Bacillus thuringiensis 1.4%+abamectin 0.1% at 375g/ha), T4 Neem oil (0.3 to 1% Azadirachtin) at 7l/ha, 400 H2O/ha) and T5 (Emamectin benzoate 50g/kg, 250g/ha). Pest abundance, leaf infestation rate, plant growth parameters and yields were assessed weekly from 26 days after sowing to three weeks before harvest. The results showed that Aphis gossypii (Hemiptera: Aphididae) the major pest (39.54±7.15) and Bemisia tabaci (Hemiptera: Aleyrodidae) (1.64±0.16) the second host infested watermelon. The peak of the leaf infestation rate is 20.97% at 40 DAS. The number of aphids was higher at 54DAS (71.34±26.30) and for whiteflies at 68 DAS (2.83±0.54). The effect of the treatments was significant (P>0.05) for all parameters. The control plot was more infested with highest mean leaf infestation rate, number of Aphids and whiteflies respectively 29.6± 2.30%; 158.03±29.59; 1.04±0.20 than Biotrin less attacked (4.11 0.89%; 2.21±0.4; 0.89±0.2). Biotrin, neem oil, Antario and Emacot are comparable for all parameters. In summary, the lowest yield was obtained in the control plot (35.71±2.66t/ha) but was not significantly different (P˃0.05) from those of the other plots. Biotrin, neem oil and Antario are bioinsecticides alternatives for Emacot and it should be applied before the 40DAS.
International Journal of Advances in Biology (IJAB)ijcsity
International Journal of Advances in Biology (IJAB) is a peer-reviewed, open access journal, addresses the impacts and challenges of Biology. The journal documents practical and theoretical results which make a fundamental contribution for the development of Biological sciences and applications.
RESIDUAL ESTIMATION OF ISOPROTURON, ATRAZINE AND GRAIN PROTECTANTS IN STORED ...ijabjournal
This study was carried out to see the occurrence and level of pesticide residues in stored wheat grain samples. Wheat grains were collected from different godowns located in Faisalabad district. Weedicide residues in wheat grains were analyzed by using thin plate liquid chromatography and validated high
performance liquid chromatography. On the basis of extent of inhibition of the Hill reaction, it was found that the level of atrazine was (0-0.028 ngkg-1) and the level of isopproturon was (0-0.024 ngkg-1) in test samples. The calculated values were below the Maximum Residue Limit (MEL) i.e. 100 ngkg-1 for atrazine and 2200 ngkg-1 for isoproturon. It was found that presence of herbicide residues in stored wheat was negligible. Further, on wheat grain samples placed in jars and treated with deltamethrin and cypermethrin @0.4 and 0.8% concentration. The persistency data was calculated after 1 hour, 7, 15 and 30 days of treatment. The grain protectants were continuously degraded with the passage of time and after the 30 days
the amount of residues of the grain protectants was found to be very small. It was concluded that the use of the grain protectants in the powder form in combination with other botanicals on stored wheat samples is feasible to reduce the insect pest in stored grains.
Physical and Mechanical Methods of Plant ProtectionSWATHI SASIDHARAN
The physical methods are those which are used for pest control to reduce pest populations by using devices. Mechanical method involves the use of various traps and other mechanical obstacles to pests.
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%).
Here I'm A Naveen Kumar discussing and written a PPT on ipm in rice as a result of agronomical subject and I'm uploading this to the slide share for the good porpoise and to take good information from the slide it's ipm in rice was very good topic and the information provided is being taken from different sources and different articles hope it will help you the best.
#ipm in rice
#ipm
#rice
#ppt
#slideshare
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
1. Insect pest losses in stored grains
and their management
Nahida Ahad
Gk-0314
M.sc Entomology(2nd Yr)
2. ● 80% of human food comes from grains.
● Stored -product insect can cause serious post harvest losses,estimated to be
from 9% in developed countries and 20% or more in developing
countries. (Pimental,1991)
● Worldwide an annual loss of 8-10%(13mt of grains lost due to insect)and
100 mt due to failure to storage properly.
● It was estimated greater than 20,000 species of field and storage pests
destroy approximately 1/3rd of world food production.
INTRODUCTION
3. Post Harvest Losses in INDIA
● In India almost 8.5% of total
annual production is lost during
post harvest handling and storage. (Agrawal et al;1988)
● Estimates of losses of food
grains during post harvest
operations.
4.
5.
6.
7.
8.
9. Detection of storage insect-pest
● Acoustic detection;relies on sound produced by insect during feeding and
movement on the grain bulk.
● Equipment s used; Microphones and Piezoelectric sensors.
● Small insects,young larvae:weak emmiters of sound.
10. ● Near infrared spectroscopy;fast, accurate and economical
technique.Provides information based on the reflectance properties of
different substances present in a product.Based on absorption of
electromagnetic wavelengths in the range 780-2500nm.
● Drawback; can't discriminate between dead and live insect and can't
detect low levels of infestation in bulk samples.
11. X-ray imaging
● Simple,fast and non destructive method.
● Karunakaran et al.(2004) used soft X-ray to detect internal and external
infestations of Rhyzopertha dominica in wheat kernels.
● Luci Fluoroscope: source ofsoft x-rays.
● X-ray images were acquired as grey scale images.
12.
13.
14. from Azadirhacta indica,Glycine max and● Sliver nanoparticles;synthesized
camellia sinensis.
NANOPARTICLES USED AGAINST STORED GRAIN PEST
Silver nanoparticles like;AgNO3
Silica like;diatomaceous earth,synthetic silica(SiO2),sands,silica Aerogel
Aluminium oxide(Al2O3)
Zinc oxide(ZnO)
Copper oxide(Cu2O3)
Titanium oxide(TiO2)
15. Silica nanoparticles
● Diatamaeceous earth and synthetic silica used in the form of inert dusts.
● Kills by physical rather than chemical means.
● 100% mortality of corcyra Cephalonica by amorphous silica nanoparticles (Vani and
Brindha 2013).
● 80-90% mortality of s.oryzae was observed(Debnath 2011)
Novel use of nano structured alumina as an
insecticide
● Goswami et al; 2010 observed 86% mortality of sitophilus oryzae.
● Sabbour,2012 and salem et al;2015: reported :higlhly effective against sitophilus
oryzae and highly oviposition deterrent.
Zinc oxide nanoparticles; effective against s.oryzae.
● Act as feeding deterrent to the insect and destruction of natural water barrier in the
waxy layer of the insect cuticle.
● 65% mortality of s.oryzae was observed(Goswami et al;2010).
16. TNAU TRAP
The insect trap has to be kept in the grain vertically with the white plastic cone
downside.
The top red cap must be with the level of grain.
Insects will move towards air in the main tube and enter through the hole.
Once the insects enters hole it falls down into the detachable white cone at the bottom.
PITFALL TRAP
.Used for capturing insects active on grain surface and in other layers of grain
(Monitoring and mass trapping tool).
It has a perforated lid,cone shaped bottom which tapers into a funnel shaped trapping tube.
Cone is coated with sticky substance to hold trapped insects.
TNAU - TRAP
PITFALL -TRAP
17. UV LIGHT TRAP for grain storage godowns
● Consists of an ultraviolet source.
● The light is fitted at the centre of funnel.
● Trap is place in storage godowns at 1.5m
above ground level.
● 2 numbers of UV light traps per 60m×20m
(L×B) godown with 5m height is suggested.
● Egg removal device
● The gadget has:outer container,an inner
perforated container and a rotating rod fixed
with plastic brushes.Rod is rotated for 10
minutes 3 times a a day.
● Splashing action of brush crush the eggs.
18. ● BOTANICALS
● Plant extracts are commonly referred to as botanicals.
● Secondary plant metabolites.Extremely low toxic to mammals.
● Killing or reppelant property makes seeds unsuitable for insect pests.
19. Azadirhactin causes 100% mortality to sitophilus oryzae(Athanasiou et
al;2005).
Methanol extracted from chrysanthemum reduced the population of
Trogoderma granarium( Derbalah,2012)
The treatment of castor oil @1.0ml/100g seeds caused maximum
reduction in egg viability of stored pest.
The karanj extract was most effective and mehandi oil was least
effective in reducing the fecundity,egg viability and longevity of adults.
20. • Interfere with the insect mechanism of development and molting.
• No progeny capable of reproduction.
• IGR-NYGUARD
• IGR-(HYDROPRENE)-Gentrol
• IGR-(s)-METHOPRENE-Diacon
• Novaluron
• It is abiological insecticide.
• Derived from bacterium;
• Saccharopolyspora spinosa
• Mode of action ;contact and stomach
• Stage specific;Adult
•
USE OF PROTECTANTS
GROWTH REGULATORS
SPINOSAD
21. INSECT GROWTH REGULATORS
Three possible ways of application of pheromones to control storage pest;
Trapping with sex attractant
Using aggregation pheromone with insect pathogen or chemosterilant
Profusing the warehouses atmosphere with pheromone to disrupt normal
courtship behaviour of males
4,8 DMD – Aggregation pheromone effective against Tribolium spp.
Sitophinone against Sitophilus oryzae
Tribolium castaneum also trapped by synthetic lures i.e; PT6 Allure and Trappit
under lab.conditions.
JUVINILE HARMONE ANALOGUE
Ambika and Abraham (1982);topical application of Methoprene at a dose of 1.0
and 0.5 micro/4th instar larvae gave 100% mortality.
Larval duration,length,width,pupal weight,pupal period increased due to
Fenoxycarb treatment.
22. BIOLOGICAL CONTROL
Biological control in storage is not very
effective.
Some Hymenopterous parasites ;
Anisopteromalus calandrae effective against
Sitophilus oryzae
Lariophagus distinguendus against
Rhizopertha and Sitophilus
Bt is the first microrganism to be approved
for us in stored pest.It is compatible with
most protectant fumigant and seed fungicide.
23. HOST RESISTANCE
• With the advancement of science a lot of crop varieties are developed that show varying degree of
resistance against different insect pests.
• The most common example is pea havinf foreign gene (alpha-AI-Pv) resistant to pulse beetle and
tobacco having a-ai gene resistant to Tenebrio molitor.
• FUMIGATION
• Process of exposing pests or pest affected stocks to the fumes of chemical at a lethal strength in a
gas tight space. FUMIGANTS DESCRIPTION
Durofure Mixture of EDB and CH3Br (Resistant sp. of Tribolium ,Trogoderma)
ECO2FUME 2% phosphine by weight in 98% CO2
Phosphine 3g tablet of Almunium phosphide releases 1g of phosphine
PROFUME Sulfuryl flouride;doesnot deplete ozone layer,effective as methyl
bromide
Grain-o-cide CS2 and CO2 (4:1) @ 30-40 /1000 Quintals for 7 days exposure
CCl4 Less toxic to insects,slow acting
CS2 Highly phytotoxic
24. PHYSICAL CONTROL MEASURES
TEMPERATURE
25-30⁰C;optimum for growth and reroduction
13-25⁰C and 33-35 ⁰C ;suboptimal range at which insects are able to complete development and produce
offspring.
<13 ⁰C or >35⁰C ;insects eventually die.
All immature stages of Sitophilus,Rhizopertha,Sitotroga cerealella are killed when exposed to temperature
of (80,70,60)⁰C respectively for about 4,6,11 minutes respectively.
Although heating of grains to 50⁰C is lethal to many stored insect pest,it is not advisable as the grain lose
viability at such temperature.
MOISTURE
Grain stored at 10% moisture content escape from attack of insects.khapra beetle develop even below this
temperature.
Over the moisture range of about 12-16%,the rate of seed deterioration increases as moisture content
increases.
OXYGEN
Khapra beetle is very susceptible to decrease in O2 content.Reduction of O2 can be achieved by addition of
CO2 and N2.
25. –GRAIN PROOFING
Some inert dusts are abrasive and scar the cuticle,causing dessication and
starvation but actual efficiency depends upon particle size(max,10µm),particle
hardiness,particle shape.
Some common dusts used for grain proofing are wood ash,lime,calcium
carbonate,gypsum,calcium chloride,talc.
26.
27.
28. Chemical control measures
Among the present methods of control of stored grain pests chemical control is the
most popular and the most effective one.
Surface spray of bags and when the insect pests are visible are done with
insecticides such as malathion,DDVP,fenitrothion etc.
Malathion 50EC is sprayed over the bags in the ratio of 1:100@ 3L/100m2.
Recently the deltamethrin 2.5WP@3mga.i/m2 has been found very effective.
Dust formulations of the insecticides contain additives,which increased the
adhesion to the stored produce.
Dust formulations are suitable for mixing with grain and for applying in layers in the
stored produce (sandwich method) as well as for surface treatment of individual
bag,bag stacks and stores.
29. CONCLUSION
Stored grain infestation is a very serious problem as various life stages of insects cause
economic damage and deteriorates the quality of food grains and food products.There
are number of stored grain insect pests that infest food grains in farmer stores and
public ware houses and massively surge due to uncontrolled environmental conditions
and poor warehousing technology used.
However ,for suppression of multiplying insect population highly specific and more
appropriate modern methods are to be used.few important methods such as ionizing
radiation,IGRs,use of entomopathogens are proved highly effective against stored grain
insects.
However these methods,repellents and oviposition inhibitors isolated from various
plant species are considered as much safer in comparision to synthetic pesticides.
However,non residual non persistant and less toxic bio-organic pesticides should be
used that may not affect the quality of food grains.