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S. M. Patel ¹, G. G. Radadia ¹, H. V. Pandya ¹, S. D. Patel ¹, P. P. Dave ¹

Affiliations
1 Department of Entomology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, NAVSARI (GUJARAT), IN

Abstract

Investigation on comparative biology of green lace wing, Chrysoperla zastrowi arabica Henry et al. (Neuroptera : Chrysopidae) was carried out in the Bio-control Laboratory, Navsari Agricultural University, Navsari, Gujarat during 2007 to 2009. The results on comparative biology of C. zastrowi arabica on two aphid species viz., Aphis gossypii Glower and Myzus persicae (Sulzer) revealed that average duration of total developmental period was 18.70 ± 0.64 and 18.93 ± 0.55 days when reared on A. gossypii, and M. persicae, respectively. The egg laying capacity of C. zastrowi arabica was recorded 754.25 ± 143.47 and 601.75 ± 89.43 eggs when reared on A. gossypii and M. persicae, respectively. Study on predatory potential of C. zastrowi arabica revealed that single larva consumed an average of 627.60 ± 42.39 and 587.5 ± 55.59 numbers (nymphs and adults) of A. gossypii and M. persicae, respectively

Keywords

Green lace wing, Comparative biology, Predatory potential.

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Somnath Deshmukh ¹, H. V. Pandya ¹, S. D. Patel ¹, M. M. Saiyad ¹, P. P. Dave ¹

Affiliations
1 Department of Entomology, ASPEE College of Horticulture and Forestry, Navsari Agriculture University, NAVSARI (GUJARAT), IN

Abstract

Investigation on development of suitable integrated pest management module for major insect pest of cabbage (Brassicae oleracea var. capitata) was carried out in experimental field of Navsari Agricultural University, Navsari, Gujarat. In case of larval population of C. binotalis, S. litura, P. xylostella and H. armigera was found in sole synthetic insecticide module M₃ (0.23, 0.35, 1.61 and 1.78/plants, respectively) followed by eco-friendly pest management module M₁ (0.23, 0.98, 1.50 and 1.51/ plants, respectively) and botanicals bio-pesticides module M₂ (0.30, 0.99, 1.62 and 1.65/ plants, respectively). As far as yield and economics is concerned, module M₃ recorded highest yield of cabbage heads (28322.0 kg/ha) and consequently higher net gain over control (122050 Rs./ha) and higher net BCR (1:41.01). However, its effect in destructing natural fauna, polluting environment and causing residual problem should not be overlooked. Eco-friendly pest management module and botanicals and bio-pesticides module was next effective module in recording yield and net profit besides any adverse effect on natural fauna and did not leave any toxic residue.

Keywords

IPM Modules, Insect Pests, Cabbage.

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S. G. Parmar ¹, M. M. Naik ¹, H. V. Pandya ², N. K. Rathod ¹, S. D. Patel ¹, P. P. Dave ¹, M. M. Saiyad ¹

Affiliations
1 Department of Entomology, N.M. College of Agriculture, Navsari Agricultural University, NAVSARI (GUJARAT), IN
2 Department of Entomology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, NAVSARI (GUJARAT), IN

Abstract

An investigation was carried out on bio-efficacy of newer insecticides against pest complex of blackgram [Vigna mungo (L.)] at Navsari Agricultural University, Navsari, Gujarat during Kharif season. Among the tested eleven insecticide, the higher effectiveness was observed with the application of clothianidin 50 per cent WDG (0.003%) against whitefly, jassid and aphid. While, spinosad 2.5 SC (0.002%) was the most effective against gram pod borer and spotted pod borer.

Keywords

Bio Efficacy, Insecticides, Blackgram, Whitefly, Jassid, Aphid, Gram Pod Borer, Spotted Pod Borer.

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