Efficacy Of Different Insecticides Research Articles

Field efficacy of different insecticides against leaf-eating caterpillar Spodoptera litura infesting Soybean

Field efficacy of different insecticides against leaf-eating caterpillar Spodoptera litura infesting Soybean

Laboratory efficacy of different insecticides against maize fall armyworm, Spodoptera frugiperda (J. E. Smith)

Laboratory efficacy of different insecticides against maize fall armyworm, Spodoptera frugiperda (J. E. Smith)

Efficacy of insecticides against cashew leaf miner, Acrocercops syngramma Meyrick (Lepidoptera, Gracillariidae)

Experiments were conducted to know the efficacy of different insecticides (Cyantraniliprole 10.26 % OD @ 1.8 ml L-1, Dinotefuran 20 % SG @ 0.3 g L-1, Chlorfenapyr 10 % SC @ 1.5 ml L-1, midacloprid 17.8 % SL @ 0.3 ml L-1, Thiamethoxam 25 % WG @ 0.3 g L-1, Lambda cyhalothrin 2.5 % EC @1 ml L-1) against cashew leaf miner, Acrocercops syngramma Meyrick under field condition and under nursery condition Among the different insecticides evaluated, under field condition, Lambda cyhalothrin was found to be statistically superior over all other treatments recording 83.39 per cent reduction over control. Imidacloprid was found least effective against leaf miner (46.41% reduction of over control). Under nursery condition, Lambda cyhalothrin recorded 79.13 per cent reduction whereas Imidacloprid recorded only 20.31 per cent.

Field Efficacy of Different Insecticides Against Brinjal Shoot and Fruit Borer, Leucinodes orbonalis (Guenee)

The experiment was carried out at the research plot of the Department of Agricultural Entomology and Central Research Farm, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, during Kharif from July to November 2022 in Randomized Block Design (RBD) with three replications. Eight treatments were evaluated against, Leucinodes orbonalis i.e., Spinosad 45% SC (0.5ml/L), Chlorantraniliprole 18.5% SC (0.5ml/L), Flubendiamide 480 SC (0.4ml/L), Emamectin benzoate 5 SG (0.4gm/L), Indoxacarb 14.5% SC (0.25ml/L), Neem oil 5% (50ml/L), Beauveria bassiana (1X108 CFU/gm) 1.15 % WP (2.5gm/L), Control in RBD with three replications. The data on the percent infestation of shoot and fruit borer on brinjal 3rd, 7th, and 14th day after first and second spray reveal that all the chemical treatments were significantly superior over control. The lowest infestation was recorded in Chlorantraniliprole 18.5% SC (12.45) (9.78), Spinosad 45% SC (13.56) (10.43), Emamectin benzoate 5 SG (14.68) (11.39),
 Indoxacarb 14.5% Sc (15.34) (12.38), Flubendiamide 480 SC (16.26) (13.30), Beauveria bassiana
 (1X108 CFU/gm) 1.15% WP (16.84) (14.56), Neem oil 5% (19.46) (15.52). The best yield and most economical treatment was Chlorantraniliprole 18.5% SC (220.5q/ha) (1:8.3) which was par with Spinosad 45% SC (195.30q/ha) (1:7.7) followed by Emamectin benzoate 5 SG (172.50q/ha) (1:6.8), Indoxacarb 14.5 SC (165.35q/ha) (1:6.5), Flubendiamide 480SC (142.33q/ha) (1:5.3), Beauveria bassiana (1X108 CFU/gm) 1.15 % WP (130.40q/ha) (1:5.2) and Neem oil 5% (125.50q/ha) (1:5.04) as compared to control (90.00q/ha) (1:3.72). The yields among the treatment were significant.

Bioefficacy of some new insecticides against mustard aphid, Lipaphis erysimi (Kalt.)

A field experiment was conducted to evaluate the efficacy of different insecticides against mustard aphid, Lipaphis erysimi (Kalt.) at Research Farm, Agricultural Research Station, Mandor, Jodhpur during rabi, 2021-22. The experiment consists often treatments including untreated control and laid out in randomized block design with three replications. Treatments used in the experiment were dimethoate 30 EC @ 875 ml/ha, thiamethoxam 25 WG @ 100 g/ha, acetamiprid 20 SP @ 50 g/ha, buprofezin 25 SC @ 1000 ml/ha, chlorpyriphos 20 EC @ 500 ml/ha, cyantraniliprole 10.26 OD @ 600 ml/ha, diafenthiuron 50 WP @ 600 g/ha, imidacloprid 17.8 SL @ 100 ml/ha and quinalphos 25 EC @ 1000 ml/ha. Among these treatments imidacloprid 17.8 SL @ 100 ml/ha was found most effective followed by thiamethoxam 25 WG and dimethoate 30 EC while diafenthiuron 50 WP @600 g/ha and chlorpyriphos 20 EC @ 500 ml/ha were reported as least effective treatments. The maximum yield (3861 kg/ha) was recorded in the plot treated with imidacloprid 17.8 SL @ 100 ml/ha followed by thiamethoxam 25 WG (3444 kg/ha) and dimethoate 30 EC (3194 kg/ha). Further, maximum net profit (`2,00,290/ha.) and highest B: C ratio were obtained from imidacloprid 17.8 SL@ 100 ml/ha treated plots while minimumwas obtained in chlorpyriphos 20 EC (2.71:1) treated plots.

Efficacy of different insecticides against the yellow stem borer ( Scirpophaga incertulus Walker) (Lepidoptera: Crambidae) in spring rice cultivation

Efficacy of different insecticides against the yellow stem borer ( <i>Scirpophaga incertulus</i> Walker) (Lepidoptera: Crambidae) in spring rice cultivation

Efficacy of different insecticides and botanicals against Banana aphids (Pentalonia nigronervosa) under field conditions

Efficacy of different insecticides and botanicals against Banana aphids (Pentalonia nigronervosa) under field conditions

Efficacy of Different Insecticides Alone and in Combination with Salicylic Acid against Cotton Whitefly Bemisia tabaci Gennadius (Homoptera: Aleyrodidae)

Efficacy of Different Insecticides Alone and in Combination with Salicylic Acid against Cotton Whitefly Bemisia tabaci Gennadius (Homoptera: Aleyrodidae)

Efficacy of different insecticides and biopesticides against gundhi bug (Leptocorisa acuta Thunberg) on rice (Oryza Sativa L.)

Efficacy of different insecticides and biopesticides against gundhi bug (Leptocorisa acuta Thunberg) on rice (Oryza Sativa L.)

Efficacy of Different Insecticides Against Potato Leafhopper on Red Maple

Efficacy of Different Insecticides Against Potato Leafhopper on Red Maple

Comparative efficacy of different insecticides against fruit borer, Helicoverpa armigera (Hubner) on tomato, Solanum lycopersicon (L.)

Comparative efficacy of different insecticides against fruit borer, Helicoverpa armigera (Hubner) on tomato, Solanum lycopersicon (L.)

Development and validation of integrated pest management modules against spotted pod borer Maruca vitrata Fabricius on garden bean Lablab purpureus var. typicus (L.)

To reduce the detrimental effect of insecticides, an effective Integrated Pest Management (IPM) module is necessary for the eco-friendly management of Maruca vitrata in garden bean ecosystem. Two field trials were carried out to evaluate the efficacy of different insecticides and botanicals against M. vitrata on Lablab purpureus var. typicus. Two seasons field evaluation of insecticides revealed that chlorantraniliprole 18.5 SC was the most effective treatment to control the pest recorded 0.11 and 0.36 larva/plant in two seasons, respectively after two rounds of spray followed by flubendiamide 20 WG (0.46 and 0.92 larva/ plant) and emamectin benzoate 5 SG (0.50 and 0.95 larva/plant). Among botanicals tested, commercial neem formulation and 5% Ageratina adenophora recorded the least larval count of 1.64 &amp; 1.05 larva/plant and 2.24 &amp; 1.45 larva/plant in two seasons, respectively. IPM modules were developed with three effective insecticides (chlorantraniliprole 18.5 SC, flubendiamide 20 WG and emamectin benzoate 5 SG), two effective botanicals (commercial neem formulation 1500 ppm and 5% A. adenophora) along with the pheromone trap for validation. All the IPM modules were equally effective in managing M. vitrata population on L. purpureus and recorded a significantly (at 5 %) lower larval population than the farmer’s practice. The residues of chlorantraniliprole, flubendiamide and emamectin benzoate reached below the detectable level at the time of harvest. The population reduction of predatory coccinellids and spiders was also lower in IPM modules than in farmer’s practice. An increased benefit cost (1.95 to 1.99) ratio was observed in IPM modules.

Efficacy of insecticides against chickpea pod borer (Helicoverpa armigera) at Sodo district Gurage Zone, Southern Ethiopia

Pod borer is a major insect pest constraining chickpea production at southern Ethiopia. The experiment was conducted at Sodo district with the objective to evaluate the efficacy of different insecticides for the control of pod borer of chickpea. The experiment was conducted using one chickpea variety; Habru and five insecticides Diaznon (1.2l/ha), Diamethoate (1L/ha), Apron star (600g with 500l of water ha-1), Endosulfan (250g/ha) and Karate (400ml/ha). The result revealed that all insecticides were effective against pod borer with difference on percent larval population reduction. The pod borer damage reduction by insecticides treatment ranged from 35.4% to 68.6% and 39.5% to 76.7% compared to that in control. Diaznon and karate resulted maximum seed yield 1561.20 kg/ha and 1498.90 kg/ha, in 2017 and 1391.40kg/ha,1421.29 kg/ha in 2019 respectively. The highest larval reduction was obtained from plot treated with insecticide Diaznon followed by insecticide Karate 5% EC 68.6%, 64% during 2017 cropping season respectively and in 2019 cropping season highest larval reduction was obtained from plot treated with insecticide Karate 5% EC 76.7% followed by Diaznon treated plot 67.2%.In both 2017 and 2019 experimentalyears better yield increment was recorded from Diaznon and Karate 5% EC treated plot. During 2017 cropping season the maximum yield increment was obtained from Diaznon treated plot 27.3% followed by Karate 24.2% and during 2019 cropping season Karate 5% EC treated plot 32.6% followed by Diaznon treated plot 31.2%. Thus chickpea growers in the area should prefer the insecticides Karate 5% EC and Diaznon in mixed up for better pod borer management.

Efficacy of different insecticides against blister beetle Mylabris pustulata thunberg (Coleoptera: Meloidae) in pigeonpea and mungbean

The efficacy of five insecticides, viz., deltamethrin, cypermethrin, indoxacarb, chlorpyriphos and endosulfan at different doses for the management of blister beetle in pigeonpea and mungbean was evaluated in Punjab Agricultural University, Ludhiana for two consecutive seasons. Mechanical control was also used as one of the treatments to test the efficacy against blister beetle. The application of selected chemicals was found highly effective in reducing the population of blister beetle. The results revealed that deltamethrin @ 14 g ai ha-1 followed by cypermethrin @ 62.50 g ai ha-1 and chlorpyriphos @ 750 g ai ha-1 were most effective among the treatments against Mylabris pustulata. Maximum grain yield of 1397 and 1301 kg ha-1 was obtained in treatment with deltamethrin in pigeonpea and mungbean, respectively, while mechanical control was found to be the least effective against blister beetle in both the pulse crops.

Efficacy of Synthetic Pesticides Against Thrips, Thrips tabaci Lindeman (Thysanoptera: Thripidae) on Okra Abelmoschus esculentus (L.) Moench

Okra (Abelmoschus esculentus L.) is an essential vegetable crop with good nutritional significance. Insect pests are the major threat for poor production of the okra crop. Thrips of vegetable crops are known to be serious pests on a wide range of fruit, vegetable, flower, and agronomic crops. The present field study was carried out to know the efficacy of different insecticides (acetamiprid 19% weightable water (ww), lambda 25% ww, colarphipare 32% ww, lambda 2.5% ww and abamectin 1.3% ww) against Thrips, Thrips tabaci (Lindeman) on okra crop during the year 2019, and observations against T. tabaci (Lindeman) were recorded after 24 hrs, 48 hrs, 72 hrs and 07 days of each spray in all the treatments. The pre-treatment count of thrips on okra was non-significant (P &amp;gt; 0.05); while the evaluated efficacy of different insecticides against thrips was significant (P &amp;lt; 0.01). It was noted that all the insecticides showed their highest efficacy after 7 days of spray and acetamiprid 19% weightable water (ww) was more efficient to combat the T. tabaci as compared to other pesticides that produced field efficacy of 73.92 and 74.91% against thrips after 7 days of 1st and 2nd spray respectively. Abamectin, 1.3% ww, was reasonably successful, yielding 53.81 and 56.66% field efficacy against T. tabaci (Lindeman) after 7 days of first and second spray. Also, moderately effective was colarphipare 32% ww, which developed field effectiveness of 56.41 and 61.49% against T. tabaci (Lindeman) after 7 days of first and second spray, respectively.

Comparative Efficacy of Different Insecticides Against Cucurbit Fruit Fly &amp;lt;i&amp;gt;(Bactrocera cucurbitae)&amp;lt;/i&amp;gt; on Bottle Gourd &amp;lt;i&amp;gt;(Lagenaria siceraria) &amp;lt;/i&amp;gt;in Sarlahi District, Nepal

The present investigation was conducted to evaluate the comparative efficacy of different Insecticides against cucurbit fruit fly, Bactrocera cucurbitae in Bottle Gourd laid out at farmer’s field in Sarlahi district. The research was designed under RCBD with 6 treatments (T1 = Spinosad @ 200ml/ha, T2 = Dichlorovos 76% EC @2ml/litre water, T3 = Lambda cyhalothrin 5% EC @ 1-2 ml/litre water, T4 = Jholmal @10ml/ litre water, T5 = Multineem (Azadirachtin 0.03%) @ 10ml/ litre water and T6 = Control (water spray) and 3 replications accommodating 12 plants in each plot. The insecticides were applied as first, second, and third sprays at pre-set, post-set, and harvest stage of Bottle Gourd in 10 days intervals between each spray and data collection being done on 3rd, 7th, and 10th day after each spray. The results showed significant variation for studied traits. The maximum number of fruit fly per plant was 8.40 (10DAS-III) during the experiment. Cucurbit fruit flies preferred young fruits and flowers for oviposition and the results obtained high pre-set damage of 43.85% (10DAS-I) and post-set damage of 68.14% (10DAS-II). The highest fruit infestation was 52.41% & 53.71% based on number and weight respectively under control treatment. Under Spinosad treatment, the lowest insect population (1.33 at 3DAS-III) was obtained with least pre-set damage, post-set damage, and minimum fruit infestation of the insect by number (27.29%) and weight (25.90%) followed by Dichlorovos and Lambda-cyhalothrin for similar traits. While, Jholmal and Azadirachtin were inferior in controlling the fruit fly population and reducing the infestation at pre-set, post-set, and harvest stage. However, Azadirachtin and Lambda-cyhalothrin were on par in terms of post-set damage (46.32% and 47.50%), respectively. The results revealed that Spinosad is the best bio-pesticide against Cucurbit fruit fly in Bottle Gourd with Dichlorovos and Lambda-cyhalothrin next in order while Jholmal and Azadirachtin offered a better quality of fruits and higher yield in Bottle Gourd. While chemical insecticides may seem effective for short term, we must opt to use eco-friendly pesticides/botanicals such as Spinosad, Jholmal and Azadirachtin for pest management and thus further study is required to explore the comparative efficacy of bio-pesticides/botanicals against chemical insecticides for fruit fly management in Bottle Gourd.

Effect of silica based surfactant on the efficacy of different insecticides against onion thrips

A field experiment was conducted for two consecutive years in rabi on onion variety Agrifound Light Red. The result showed that over all lowest mean thrips population (5.37 nymphs/plant) were recorded in spray of Fipronil @ 1.0 ml/L + silica based surfactant as well as highest gross yield (342.24 q/ha) and marketable yield (326.99 q/ha). The B:C ratio (9.11:1) was also recorded in the same treatment. The efficacy of insecticides was increased by addition of silica based surfactant and minimizing thrips population as well as increased the yield of onion bulbs.

EFFICACY OF DIFFERENT INSECTICIDES AGAINST CYDIA POMONELLA INFESTATION FROM APPLE ORCHARDS IN GILGIT-BALTISTAN, PAKISTAN

Codling moth (Cydia pomonella Linn.) is a serious pest of apple and other stone fruits and causes serious economic damage. Present study was conducted to evaluate the efficacy of different insecticides against C. pomonella infestation in Gilgit-Baltistan. In case of cypermethrin, maximum infestation (7.3, 6.3 and 6) was recorded after ten days of first, second and third spray. After this, infestation started decreasing to reach to the minimum (2.3, 1.6 and 1.3) after 30 days of first, second and third spray. Lambda showed the minimum infestation (3.3, 2.6 and 1.6) after 30 days of first, second and third spray. In case of neem seed oil, maximum infestation (8.0, 7.0 and 6.3) was estimated after 10 days of first, second and third spray. Minimum infestation (3.0, 2.6 and 2.3) was recorded after 30 days of first, second and third spray. Before spray, maximum fruit infestation rate was observed and it started decreasing after first spray and minimum infestation was recorded after the third spray and same trend was seen in case of days. This trend was observed with all insecticides i.e. cypermethrin, lambda and neem seed oil. Infestation was recorded as decreasing with the passage of time and maximum was after ten days while minimum was recorded after 30 days with all treatments. There was significant difference of fruit infestation among the first, second and third spray and among the results after 10, 20 and 30 days of sprays. Present results showed that before spray all fields had maximum fruit infestation caused by codling moth and infestation rate decreased after the treatments. It is concluded that cypermthrin is the most favorable insecticides for local apple former of this region to control codling moth infestation.

Efficacy of different insecticides against pod borer Helicoverpa armigera in gram field

Efficacy of different insecticides against pod borer Helicoverpa armigera in gram field

Evaluation of insecticides against fall armyworm, Spodoptera frugiperda (J. E. Smith) infesting maize

A field experiment was carried out during kharif, 2019 at different experimental farms (Anand, Sansoli and Godhra) of Anand Agricultural University, Anand, Gujarat to evaluate the efficacy of different insecticides against fall armyworm, Spodoptera frugiperda (J. E. Smith) infesting maize. Spinetoram 11.7 SC, 0.117 %, emamectin benzoate 5 SG, 0.0025 %, chlorantraniliprole 18.5 EC, 0.006 % and thiodicarb 75 WP, 0.11 % were found more effective in checking the larval population, plant and cob damage in maize which also reflected on grain and fodder yield as well.