Bioefficacy Of Biopesticides Research Articles

Bio Efficacy of Bio Pesticides against Spotted Pod Borer (Maruca vitrata Geyer) Infesting Black Gram

The study entitled “Bio-efficacy of bio-pesticides against spotted pod borer (Maruca vitrata Geyer) infesting black gram” at Organic Research Farm, Karguan Ji, Department of Entomology, Institute of Agricultural Sciences Bundelkhand University, Jhansi (U.P.) during kharif 2023 containing nine treatments viz, Neem oil 5%, Garlic bulb extract 5%, Bacillus thuringiensis 2.50 ml/l, Verticillium lecanii 5 ml/l, Panchagavya 10%, NSKE 5%, Castor oil 5%, Beauveria bassiana 5 ml/l and untreated control in RBD with three replications aiming to evaluate their efficacy of bio-pesticides against spotted pod borer. To evaluate the efficacy, two applications of treatments were carried out, and the spotted pod borer infestation on selected plants were evaluated after three, seven, and fourteen days after spraying. The outcomes showed that In the management of the spotted pod borer after the first and second spray, the Beauveria bassiana 5 ml/l (2.14) was superior and best effective in controlling larval population, followed by Bacillus thuringiensis 2.50 ml/l (2.34), and neem oil 5% (2.59), and the maximum yield 13.85 qt/ha and C: B ratio 1:1.71 was obtained from the Beauveria bassiana treated plot followed by Bacillus thuringiensis and neem oil by that obtained 12.89 qt/ha and 12.55 qt/ha yield, moreover 1:1.64 and 1:1.52 C: B ratio respectively.

Bioefficacy of biopesticides and novel insecticides against Leucinodes orbonalis Guenee on brinjal under mid hill conditions of Himachal Pradesh

Studies on the bioefficacy of biopesticides and novel insecticides against shoot and fruit borer, Leucinodes orbonalis were undertaken at CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur during 2015 and 2016. The results on bioefficacy showed that chlorantraniliprole resulted in minimum shoot infestation followed by cyantraniliprole, lambda-cyhalothrin, thiacloprid, indoxacarb, azadirachtin, melia and eupatorium during 2015, whereas, during 2016 the shoot infestation was minimum in cyantraniliprole followed by chlorantraniliprole, thiacloprid, lambda-cyhalothrin, indoxacarb, azadirachtin, melia and eupatorium. Fruit infestation was found minimum in chlorantraniliprole followed by cyantraniliprole, thiacloprid, lambda-cyhalothrin, indoxacarb, azadirachtin, melia and eupatorium during both the years. Among different treatments highest fruit yield was recorded in chlorantraniliprole (75.25q/ha). Lambda-cyhalothrin resulted in highest IOIR (15.87) in the present study as it is cheaper insecticide as compared to others.Hence, it is concluded that all the insecticides evaluated are effective against L. orbonalis and can be recommended for its control.

Bio-efficacy of biopesticides and novel insecticides against Leucinodes orbonalis Guenee on brinjal under mid-hill conditions of Himachal Pradesh

Bio-efficacy of biopesticides and novel insecticides against Leucinodes orbonalis Guenee on brinjal under mid-hill conditions of Himachal Pradesh

Bio-efficacy of bio-pesticides against tomato leaf miner, Tuta absoluta, a threatening pest of tomato

Bio-efficacy of bio-pesticides against tomato leaf miner, Tuta absoluta, a threatening pest of tomato

English

English

Bio-efficacy of biopesticides and certain chemical insecticides against mustard aphid (Lipaphis erysimi Kalt.) on mustard crop under field condition

The experiment was conducted on bio-efficacy of Biopesticides and certain chemical insecticides against mustard aphid (Lipaphis erysimi Kalt.) at research farm Department of Entomology, SHIATS Allahabad during Rabi season of 2012-2013. Bio-efficacy of Biopesticides and certain chemical insecticides against mustard aphid (Lipaphis erysimi Kalt.) on mustard revealed that treatments of Dimethoate 30 EC followed by spraying of Malathion 50 EC and Neem oil (0.5%) were found more effective for control of Lipaphis erysimi Kalt., respectively. Whereas, the descending order of treatments were Neem oil > NSKE > Tobacco Leaf extract > Bacillus thuringiensis > Beauveria bassiana > Metarhizium anisopliae. The least effective treatment was Verticillium lecanii. Maximum infestation was recorded in control. How to view point the article : Kumar, Sachin and Kumar, Ashwani (2016). Bio-efficacy of biopesticides and certain chemical insecticides against mustard aphid (Lipaphis erysimi Kalt.) on mustard crop under field condition. Internat. J. Plant Protec., 9(1) : 129-132.

Bio-efficacy of bio-pesticides against jassid, Empoasca kerri, Pruthi infesting groundnut

An experiment was conducted to evaluate the bio-efficacy of bio-pesticides against jassid, Empoasca kerri Pruthi infesting groundnut at Instructional Farm, College of Agriculture, Junagadh during Summer season of 2014-15. The results revealed that thiamethoxam 0.01 per cent and acetamiprid 0.004 per cent were found most effective treatments against the pest. Among the bio-pesticides, combination of B.bassiana @ 1.25 kg/ha + thiamethoxam 0.005 per cent was found most effective against jassid. While the combinations of V. lecanii @ 1.0 kg/ha + thiamethoxam 0.005 per cent was found moderately effective against jassid. Thiamethoxam 0.01 per cent recorded the highest pod yield of groundnut (1344 kg/ha) followed by acetamiprid 0.004 per cent (1275 kg/ha). As far as economics of various insecticides are concerned, thiamethoxam 0.01 per cent gave the highest cost benefit ratio (1:17.82) followed by B. bassiana @ 1.25 kg/ha + thiamethoxam 0.005 per cent (1:13.96). How to view point the article : Mer, A.N., Parmar, G.M., Bhut, J.B. and Kamaliya, R.P. (2016). Bio-efficacy of bio-pesticides against jassid, Empoasca kerri, Pruthi infesting groundnut. Internat. J. Plant Protec., 9(1) : 58-61.