“An Overview : Chilli Thrips, Scirtothrips dorsalis (Thysanoptera: Thripidae) biology, distribution and management”.
*Introduction
*Production
*Identification of pest
*Nature of damge
*Efficacy of selected insecticides
*Case study
*Result and discussion
*Conclusion
Evaluation of various Synthetic Insecticides against Thrips (Thrips tabaci) i...Agriculture Journal IJOEAR
Abstract— Cotton (Gossypium spp.) popularly known as ‘white gold’ is one of the most ancient important cash crop of India. Apart from its value as fibre, it has great potential to be used as edible oil, food for animals and other by products like particle board and boxes. The development of Bt cotton containing a genetically introgresses endotoxin gene from the gram negative soil bacteria (Bacillus thuringiensis Hubner) represents a significant technological land mark in the global cotton research. Thrips is a major sucking pest on cotton crop, causing quantitative and qualitative losses to cotton. An experiment was conducted at Agriculture Research Station, Sri Ganganagar in Randomized Block Design with 10 treatments including control and replicated three times, to evaluate various insecticides against thrips in Bt cotton. The study revealed that maximum reduction (56.00%) in thrips population was recorded with the treatment of Acephate 75% SP, followed by Imidacloprid 17.8% SL (49.66%). Both the treatments were at par and significantly superior over the other treatments. The phytotoxic effect on crop could not be observed during the experimental period.
Evaluation of Neem Oil in Combination with Wetting Agent as Larvicide against Spodoptera frugiperda (Noctuidae: Lepidoptera)
http://dx.doi.org/10.21276/SSR-IIJLS.2020.6.1.3
Evaluating Some Insecticides for Controlling the Sunn Pest Eurygaster Spp. Pu...CrimsonpublishersMCDA
Evaluating Some Insecticides for Controlling the Sunn Pest Eurygaster Spp. Puton (Hemiptera: Scutelleridae) Under Field Conditions by Mohammed Z Khalaf in Modern Concepts & Developments in Agronomy
Evaluation of various Synthetic Insecticides against Thrips (Thrips tabaci) i...Agriculture Journal IJOEAR
Abstract— Cotton (Gossypium spp.) popularly known as ‘white gold’ is one of the most ancient important cash crop of India. Apart from its value as fibre, it has great potential to be used as edible oil, food for animals and other by products like particle board and boxes. The development of Bt cotton containing a genetically introgresses endotoxin gene from the gram negative soil bacteria (Bacillus thuringiensis Hubner) represents a significant technological land mark in the global cotton research. Thrips is a major sucking pest on cotton crop, causing quantitative and qualitative losses to cotton. An experiment was conducted at Agriculture Research Station, Sri Ganganagar in Randomized Block Design with 10 treatments including control and replicated three times, to evaluate various insecticides against thrips in Bt cotton. The study revealed that maximum reduction (56.00%) in thrips population was recorded with the treatment of Acephate 75% SP, followed by Imidacloprid 17.8% SL (49.66%). Both the treatments were at par and significantly superior over the other treatments. The phytotoxic effect on crop could not be observed during the experimental period.
Evaluation of Neem Oil in Combination with Wetting Agent as Larvicide against Spodoptera frugiperda (Noctuidae: Lepidoptera)
http://dx.doi.org/10.21276/SSR-IIJLS.2020.6.1.3
Evaluating Some Insecticides for Controlling the Sunn Pest Eurygaster Spp. Pu...CrimsonpublishersMCDA
Evaluating Some Insecticides for Controlling the Sunn Pest Eurygaster Spp. Puton (Hemiptera: Scutelleridae) Under Field Conditions by Mohammed Z Khalaf in Modern Concepts & Developments in Agronomy
Bio efficacy of selected insecticides against adult whitefly, trialeurodes va...Sachin U.S
The experiment was carried out under open field condition in farmers’ field at Beekanahalli of Chikkamagaluru taluk during early summer 2014-15. The bio-efficacy of selected insecticides against whitefly was assessed by raising the tomato crop in farmers’ field. The results showed that, thiamethoxam 25 % WG was effective in reducing whitefly population at one, five, seven and ten DAS followed by cyantraniliprole 10% OD at one and five DAS and triazophos 40% EC at seven and ten DAS during the first spray. But during second spray similar trend was not seen where, cyantraniliprole 10% OD was effective at one, five and ten DAS followed by imidacloprid 17.8% SL at five, seven and ten DAS and triazophos 40% EC at one, seven and ten DAS.
Impact of EMS Induction on Morphological, Anatomical and Physiological Traits...paperpublications3
Abstract: Ethyl methanesulfonate (EMS) is a common, powerful and one of the most effective chemical mutagen, to induce a large number of functional variations in crops. Present study is to analyse the mutagenic effect of EMS in M1 generation of Bhindi (Abelmoscus esculanthus L. Moench. va Arka anamika). Seeds were treated with different doses (0.5%, 1%, 2% and 3%) of mutagen for 4 hrs and grown in gunny bags along with control. Morphological, anatomical and physiological traits of Bhindi were analyzed for 50 days at definite intervals. All parameters decreased with increase in doses of EMS. Strong deleterious effect on the germination percentage was seen in 3% of EMS. There was a negative correlation in length of root, shoot length, numbers of secondary roots and fresh weight with EMS percentage. Values of growth coefficient (GC), relative growth rate (RGR), tolerance index (TI) and net productivity were gradually decreasing with increasing doses of EMS. Anatomical parameters also showed marked decrease in root and shoot. Leaf area and chlorophyll content were lowest in 3% EMS.
Efficacy of insecticides against citrus psylla diaphorina citri kuwayama in f...Muhammad Qasim
The experiments were conducted in a citrus orchard to check the efficacy of insecticides against citrus psylla, and mortality was observed after three days, seven days and then after one month. Four insecticides, Polytrin-C, Talstar, Bifenthrin and Imidacloprid applied, had an almost equal effect on the population reduction of citrus psylla on all citrus plants. The trial was laid out in randomized complete block design (RCBD) having five treatments with three replications in a citrus orchard, after three days of spray showed percentage control as 96.91%, 94.33%, 93.83% and 93.06% of following insecticides Polytrin- C, Imidacloprid, Bifenthrin and Actara, respectively, calculated by Minitab 15. Psylla adults were exposed to different concentrations (500, 400, 300, 200 and 100 ppm) of Imidacloprid and Bifenthrin, and two controlled conditions (with leaves and without leaves). Both Imidacloprid and Bifenthrin insecticides proved to be the most effective against D. citri with lethal times (LT50s) of 4 and 5 hours, respectively, at a concentration of 500 ppm, calculated from probability test with Minitab-15
Evaluation of fungicide and botanicals against major seed borne pathogen of c...Dr. Mahesh Ghuge
The present study revealed that the growth of R. bataticola was effectively
inhibited (100%) by all the fungicides viz., Carbendazim (0.2%), Carboxin
(0.2%), Mancozeb (0.2%), Carbendazim (0.1%) + Carboxin (0.1%) except
inhibition (23.28%) by Neem extract 5%. Similar trend was observed in
pathogens viz., F. oxysporum f. sp. ciceri, Penicillium spp. and A. niger.
The completely growth (100%) was inhibited by fungicides Carbendazim
(0.2%), Carboxin (0.2%), Carbendazim (0.1%) + Carboxin (0.1%) followed
by Mancozeb (77.49, 75.60 and 74.52 %). Whereas Neem extract was
resulted in poor inhibition of the pathogens (74.56, 48.41 and 43.97%). The
seed-borne pathogens Rhizopus spp. was effectively completely (100%)
inhibited by the Carbendazim (0.1%)+Carboxin (0.1%) followed by
Carboxin (42.34%), Mancozeb (30.98%), Carbendazim (23.49%) and the
lowest inhibition of the pathogens radial growth was showed by the Neem
extract (23.43%).
Antifungal activity of psoralea corylifolia hairy root extract against sugarc...researchagriculture
Red rot disease is the major constraint for sugarcane production in India and the pathogen has gained virulence in recent years. About 33 % reduction in yield was observed and loss in sucrose and commercial cane sugar was estimated upto 32 to 50 % in average infections. The present investigation was carried out in sugarcane breeding institute, Coimbatore to study the effect of Psoralea corylifolia hairy root extract against high intensity Colletotrichum falcatum spore suspension (106 spores ml-1) causing red rot disease reaction in canes under Controlled Condition Treatment (CCT) Chamber. Nodal infection, green top, internodal discoloration and internal discoloration of the canes in CCT chamber were taken as the parameters for fixing the disease evaluation after 10 days of incubation. The results of CCT method authenticated the results obtained under laboratory conditions. The study revealed 100 per cent effectiveness of two per cent P. corylifolia hairy root extract over red rot pathogen infection when compared to canes treated only with spore suspension of C. falcatum.
Article Citation:
Rajkumar D and Murugesan R.
Antifungal Activity of Psoralea corylifolia Hairy Root Extract against Sugarcane Red Rot Pathogen under Controlled Condition Treatment Chamber.
Journal of Research in Agriculture (2013) 2(2): 173-179.
Full Text:
http://www.jagri.info/documents/AG0047.pdf
Bio efficacy of selected insecticides against adult whitefly, trialeurodes va...Sachin U.S
The experiment was carried out under open field condition in farmers’ field at Beekanahalli of Chikkamagaluru taluk during early summer 2014-15. The bio-efficacy of selected insecticides against whitefly was assessed by raising the tomato crop in farmers’ field. The results showed that, thiamethoxam 25 % WG was effective in reducing whitefly population at one, five, seven and ten DAS followed by cyantraniliprole 10% OD at one and five DAS and triazophos 40% EC at seven and ten DAS during the first spray. But during second spray similar trend was not seen where, cyantraniliprole 10% OD was effective at one, five and ten DAS followed by imidacloprid 17.8% SL at five, seven and ten DAS and triazophos 40% EC at one, seven and ten DAS.
Impact of EMS Induction on Morphological, Anatomical and Physiological Traits...paperpublications3
Abstract: Ethyl methanesulfonate (EMS) is a common, powerful and one of the most effective chemical mutagen, to induce a large number of functional variations in crops. Present study is to analyse the mutagenic effect of EMS in M1 generation of Bhindi (Abelmoscus esculanthus L. Moench. va Arka anamika). Seeds were treated with different doses (0.5%, 1%, 2% and 3%) of mutagen for 4 hrs and grown in gunny bags along with control. Morphological, anatomical and physiological traits of Bhindi were analyzed for 50 days at definite intervals. All parameters decreased with increase in doses of EMS. Strong deleterious effect on the germination percentage was seen in 3% of EMS. There was a negative correlation in length of root, shoot length, numbers of secondary roots and fresh weight with EMS percentage. Values of growth coefficient (GC), relative growth rate (RGR), tolerance index (TI) and net productivity were gradually decreasing with increasing doses of EMS. Anatomical parameters also showed marked decrease in root and shoot. Leaf area and chlorophyll content were lowest in 3% EMS.
Efficacy of insecticides against citrus psylla diaphorina citri kuwayama in f...Muhammad Qasim
The experiments were conducted in a citrus orchard to check the efficacy of insecticides against citrus psylla, and mortality was observed after three days, seven days and then after one month. Four insecticides, Polytrin-C, Talstar, Bifenthrin and Imidacloprid applied, had an almost equal effect on the population reduction of citrus psylla on all citrus plants. The trial was laid out in randomized complete block design (RCBD) having five treatments with three replications in a citrus orchard, after three days of spray showed percentage control as 96.91%, 94.33%, 93.83% and 93.06% of following insecticides Polytrin- C, Imidacloprid, Bifenthrin and Actara, respectively, calculated by Minitab 15. Psylla adults were exposed to different concentrations (500, 400, 300, 200 and 100 ppm) of Imidacloprid and Bifenthrin, and two controlled conditions (with leaves and without leaves). Both Imidacloprid and Bifenthrin insecticides proved to be the most effective against D. citri with lethal times (LT50s) of 4 and 5 hours, respectively, at a concentration of 500 ppm, calculated from probability test with Minitab-15
Evaluation of fungicide and botanicals against major seed borne pathogen of c...Dr. Mahesh Ghuge
The present study revealed that the growth of R. bataticola was effectively
inhibited (100%) by all the fungicides viz., Carbendazim (0.2%), Carboxin
(0.2%), Mancozeb (0.2%), Carbendazim (0.1%) + Carboxin (0.1%) except
inhibition (23.28%) by Neem extract 5%. Similar trend was observed in
pathogens viz., F. oxysporum f. sp. ciceri, Penicillium spp. and A. niger.
The completely growth (100%) was inhibited by fungicides Carbendazim
(0.2%), Carboxin (0.2%), Carbendazim (0.1%) + Carboxin (0.1%) followed
by Mancozeb (77.49, 75.60 and 74.52 %). Whereas Neem extract was
resulted in poor inhibition of the pathogens (74.56, 48.41 and 43.97%). The
seed-borne pathogens Rhizopus spp. was effectively completely (100%)
inhibited by the Carbendazim (0.1%)+Carboxin (0.1%) followed by
Carboxin (42.34%), Mancozeb (30.98%), Carbendazim (23.49%) and the
lowest inhibition of the pathogens radial growth was showed by the Neem
extract (23.43%).
Antifungal activity of psoralea corylifolia hairy root extract against sugarc...researchagriculture
Red rot disease is the major constraint for sugarcane production in India and the pathogen has gained virulence in recent years. About 33 % reduction in yield was observed and loss in sucrose and commercial cane sugar was estimated upto 32 to 50 % in average infections. The present investigation was carried out in sugarcane breeding institute, Coimbatore to study the effect of Psoralea corylifolia hairy root extract against high intensity Colletotrichum falcatum spore suspension (106 spores ml-1) causing red rot disease reaction in canes under Controlled Condition Treatment (CCT) Chamber. Nodal infection, green top, internodal discoloration and internal discoloration of the canes in CCT chamber were taken as the parameters for fixing the disease evaluation after 10 days of incubation. The results of CCT method authenticated the results obtained under laboratory conditions. The study revealed 100 per cent effectiveness of two per cent P. corylifolia hairy root extract over red rot pathogen infection when compared to canes treated only with spore suspension of C. falcatum.
Article Citation:
Rajkumar D and Murugesan R.
Antifungal Activity of Psoralea corylifolia Hairy Root Extract against Sugarcane Red Rot Pathogen under Controlled Condition Treatment Chamber.
Journal of Research in Agriculture (2013) 2(2): 173-179.
Full Text:
http://www.jagri.info/documents/AG0047.pdf
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This will be used as part of your Personal Professional Portfolio once graded.
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Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
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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.
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Chilli Thrips PPT by Mohit Kondalkar (J)
1.
2. CREDIT SEMINAR
ON
“An Overview : Chilli Thrips, Scirtothrips dorsalis (Thysanoptera: Thripidae) biology,
distribution and management”.
SUBMITTED BY:
Kondalkar Mohit Liladhar
ID.NO:- 21MSENT038
M.Sc.( Agri.) Entomology
3rd SEMESTER
DEPARTMENT OF ENTOMOLOGY
NAINI AGRICULTURAL INSTITUTE
SAM HIGGINBOTTOM UNIVERSITY OFAGRICULTURE, TECHNOLOGY
AND SCIENCES PRAYAGRAJ-211007, U.P., INDIA. (2022-2023)
3. SR.
NO CONTENT
1 INTRODUCTION
2 PRODUCTION
3 IDENTIFICATION OF PEST
4 LIFE CYCLE
5 NATURE OF DAMAGE
6 EFFICACY OF SELECTED INSECTICIDES
7 CASE STUDY
8 RESULT AND DISCUSSION
9 CONCLUSION
10 REFERENCE
4. INTRODUCTION
Chilli (Capsicum annuum: Solanaceae) is one of
the most important profitable spices crop grown
all over India. It is an important condiment used
for imparting pungency and colour to the food
being rich in vitamin A, B, C, oleoresin and red
pigment. The Indian chilli is considered to be
world famous for two important commercial
qualities namely, its colour and pungency levels.
Nagaraju and Kumar (2022).
India is known as “The Home of Spices”. No
Indian meal is considered complete without the
tangy and delectable flavor of Indian Spices,
locally known as “masala”. Geetha and
Selvarani (2017).
The pungency in chillies is due to crystalline
volatile alkaloid, ‘Capsaicin’. The red colour of
chillies is due to the presence of pigment
‘Capsanthin’ (Tirkey et al., 2020)
5. PRODUCTION
38%
7%
5%
5%
5%
4%
3%
2%
2%
29%
World wide Production
India China Pakistan Bangladesh Peru
Thailand Myanmar Ethiopia Vietnam Others
57%
10%
6%
6%
4%
3%
3%
2%
9%
State wise Production
Andhra Pradesh
Karnataka
West Bengal
Madhya Pradesh
Odisha
Maharashtra
Gujarat
Tamil Nadu
Others
6. PEST COMPLEX OF CHILLI
The major insect pests that attack chilli are aphids (Myzus persicae Sulzer and
Aphis gossypii Glover), mites (Polyphagotarsonemus latus Banks) and thrips
(Scirtothrips dorsalis Hood). In Karnataka, thrips, mites and white flies have been
identified as key sucking pests of chilli of which leaf curl caused by mite and thrips
is serious . In addition to these, pod borers also cause maximum damage to the
crop both during vegetative and fruit formation stages. The crop loss by three
major pests, where, 30-50% by thrips (S. dorsalis), 30-70% by mites (P. latus) and
30-40% by fruit borers Helicoverpa armigera and Spodoptera litura . These pests
cause serious damage to the chilli crop by direct feeding and transmitting deadly
disease called "leaf curl disease" or "Murda complex".Kurbett et al., (2009)
7. IDENTIFICATION OF PEST
EGGS:- Typically oval, whitish to
yellowish colored.
Eggs are about 0.075mm long and
0.070mm wide and are inserted inside
plant tissue.
LARVAE:- Two larval stages (first
and second instar) 6 to 7 days. The
larvae are off white in colour.
First Instar transparent short body,
longer legs.
OVAL SHAPED EGGS
FIRST INSTAR LARVAE
8. SECOND INSTAR :- Longer
antennae, cylindrical seven-segmented,
longer mouth.
PRE PUPAE :-Yellowish, antennae
short, two pair of external wing.
The pre pupal period is short (24
hours).
SECOND INSTAR LARVAE
PRE-PUPAE
9. • PUPAE :- Dark yellow with eyes and
ocelli red pigmentation, wing buds are
elongate, antennae short and reflected over
head.
• Female pupae with longer pointed
abdomen, males have a smaller.
• The pupal period 2 to 3 days.
• ADULT :- Almost white on emergence,
turning yellowish with incomplete dark
stripes on the dorsal surface where the
adjacent abdominal segments meet.
PUPAE
ADULT
11. NATURE OF DAMAGE
Damaging stages are nymph and
adult.
The infested leaves develop crinkles
and curled upwards.
Elongated petiole.
Buds become brittle and drop down.
Early stages infestation leads to
stunted growth and flower
production, fruits are arrested.
12. SR.NO TREATMENTS
PERCENT REDUCTION OF THRIPS POPULATION REFERENCES
I ST SPRAY MEAN 2 ND SPRAY MEAN POOLED MEAN
T1 Acetamiprid 20 SP 20g a.i/ha 93.54 87.08 90.31 Rai and Sarkar(2022)
T2 Imidacloprid 70% WG @ 50 g
a.i/ha
94.52 94.44 94.50 Thuppukonda and Kumar
(2022)
T3 Spinosad 45% SC
@ 0.15 ml/lit
91.55 91.28 91.41 Lakshmi and Kumar
(2021)
T4 Fipronil 5% SC @2ml/lit 92.28 95.85 94.06 Nagaraju and
Kumar(2022)
T5 Diafenthiuron 50% WP @
0.010mg/lit
86.0 86.78 86.39 Neelofor and Kumar
(2022)
T6 Metarhizium anisopliae 1.15
WP
33.78 33.43 33.60 Samota et.al(2017)
T7 Neem oil @2.5 ml 56.71 65.38 61.04 Kumar and Tayde (2017)
20. RESULT AND DISCUSSION
Revealed that, among the different treatments, the lowest per cent population reduction of chilli thrips was recorded in
Imidacloprid 70% WG (94.523%) followed by acetamiprid 20% SP (92.313%), Indoxacarb 14.5 SC (90.98%). It is
followed by Fipronil 5% SC (88.57%) and Diafenthiuron 50% WP (85.92%), Thiamethoxam 25% WG (84.40%) and
Neem oil 1500ppm (81.78%) was the least effective among all treatments. Thuppukonda and Kumar (2022)
Among all the treatments lowest per cent reduction of chilli thrips was recorded in Fipronil 5% SC (94.06%). Similar
findings made by Venkateswarlu et al. (2021) with (93.82%), Babu et al. (2021) with 92.86%, Indumathi et al. (2017)
[7], Tukaram et al. (2017). Nagaraju and Kumar(2022)
Results of study on the efficacy of certain insecticides against chilli thrips population are presented in table 1,2,3,and
4. The mean data of all observations regarding the efficacy of different treatments against chilli thrips revealed that all
the treatments were significantly effective over the control in reducing the pest population. Spinosad 0.15 ml/ lt
recorded highest reduction of thrips population ie., 0.525 / plant (91.41%) which was significantly superior over
control followed by Imidacloprid 0.05 ml/lt (87.62%), Pymetrozine 0.2 ml/lt (83.98%), Emamectin benzoate 0.4gm/lt
(80.59%), Acetamiprid 0.05 g/lt (75.01%), Thiacloprid 0.05 ml/lt (70.62%) and Acephate 0.75 gm/lt (62.67%)was
least effective among all the treatments. Lakshmi and Kumar (2021)
21. The results suggest that all the treatments of neonicotinoid except dinotefuran 20 SG, performed significantly better
than the standard check, acephate 75 SP. The pre-treatment count of thrips during the first season varied between 3.45
and 4.27 per leaf. The highest per cent reduction in thrips population was recorded in Acetamiprid (93.54%)
followed by thiamethoxam(90.06%), imidacloprid (88.09%) and Clothianidin(82.35%). Plots treated with thiacloprid
recorded 79.67per cent reduction in thrips population and was at par with acephate (79.08%) while dinotefuran was
observed to be the most inferior treatment against Scirtothrips dorsalis Hood with 76.01 per cent reduction in
population. Rai and Sarkar(2022)
The data on percent population reduction of Scirtothrips dorsalis over control on third, seventh and tenth day after
spraying revealed that all the treatments were significantly superior over control. Among all the treatments T7
Spinosad 0.15ml/l recorded highest reduction of Scirtothrips dorsalis population i.e., (95.21%) which was
significantly superior over control followed by T4 Acetamiprid 1.0 mg/l (88.61%), T2 Diafenthiuron 0.010 mg/l
(86.52%), T6 Sixer plus 2ml/l (85.21%),T5 Indoxacarb 0.15 ml/l (83.70%), T3 Mech-333 2ml/l (81.75%), and T1
Neem oil 4 ml/l (78.91%) was least effective to control population of Scirotothrips dorsalis in comparision to other
selected insecticides and biopesticides. Neelofor and Kumar (2022)
22. Total ten treatments including untreated control were taken for test their efficacy. On the basis of mean per cent
reduction in thrips population in all the three sprays the treatment of acetamiprid (82.62%) was found to be the
most effective, followed by thiamethoxam (80.79%), imidacloprid (77.90%), fipronil (76.38%) and standard
check (71.92%), former three treatments were statistically at par with each other in their efficacy. The treatments
of spinosad and NSKE with 61.65 and 48.95 per cent reduction, formed a moderately effective group of
insecticides, however, both were differed significantly to each other. The minimum reduction was noticed in M.
anisopliae (33.60%) and B. bassiana (34.86%) and both were comparable to each other. Samota et al. (2017)
Among all the treatments Spinosad 0.015% recorded highest reduction of Scirtothrips dorsalis population i.e.
(71.21%) which was significantly superior to control followed by Imidacloprid 0.005% (67.58%), Pongamia oil
4% (55.78%) Neem oil 2.5ml/l (55.64%),Garlic sap extract 10g/Lit. (53.03%), NSKE5% (50.03%) and
Beauveria bassiana 2gm/Lit (33.36%) was least effective among all the treatments. Kumar and Tayde (2017)
23. CONCLUSION
From the critical analysis of various articles as discussed above it is
concluded that among all the treatment Imidacloprid 70 % WG
recorded highest reduction of Scirtothrips dorsalis population i.e.,
(94.5%) followed by Fipronil 5% SC (94.06%),Spinosad 45% SC
(91.45%),Acetamiprid 20 SP (90.31%), Diafenthiuron 50% WP
(86.39%), Neem oil 2500 ppm (61.04%) and Metarhizium
anisopliae 1.15 WP (33.60%).
24. REFERENCE
Rai, P., and Sarkar, K. (2022). Efficacy of some promising neonicotinoids against Scirtothrips
dorsalis Hood infesting chilli, their impact on the important natural enemies and economic benefits in
West Bengal. Journal of Crop and Weed, 18(2), 253-258.
Neelofor, B. S., and Kumar, A. (2022). Comparitive efficacy and cost benefit ratio of selected
insecticides and biopesticides against chilli Thrips. The Pharma Innovation Journal 2022; 11(5): 250-
253.
Geetha, R., and Selvarani, K. (2017). A study of chilli production and export from India.
International Journal of Advance Research and Innovative Ideas in Education, 3(2), 205-210.
Tirkey, S, S. and Ashwani Kumar. (2017). Efficacy of selected insecticides against chilli thrips
{Scirtothrips dorsalis (Hood)} on chilli (Capsicum annuum L.) in Allahabad. Journal of
Pharmacognosy and Phytochemistry, 6(5): 322-324.
25. Samota, R. G., Jat, B. L., and Choudhary, M. D. (2017). Efficacy of newer insecticides and biopesticides
against thrips, Scirtothrips dorsalis Hood in chilli. Journal of Pharmacognosy and Phytochemistry, 6(4),
1458-1462
Nagaraju, R., and Kumar, A. (2022). Comparative field efficacy of selected insecticides against chilli
thrips (Scirtothrips dorsalis Hood) on chilli at Naini, Prayagraj (UP). The Pharma Innovation Journal,
2389-2392.
Lakshmi, K. S. I., and Kumar, A. (2021). Efficacy of selected insecticides against chilli thrips,
Scirtothrips dorsalis (Hood) on chilli, Capsicum annum Linnaeus. Journal of Entomology and Zoology
Studies 2021; 9(1): 126-130.
Thuppukonda, M and Kumar, A. (2022). Efficacy of selected insecticides against chilli thrips
(Scirtothrips dorsalis Hood) The Pharma Innovation Journal, 11(5): 591-595.
Kurbett, A., Gopali, J., Allolli, T., Patil, S., Kumar, V. and Kurbett, K. (2018).Evaluation of different
IPM modules against pest complex of chilli (cv. Byadgi dabbi). Journal of Entomology and Zoology
Studies, 6(2): 1991-1996.