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Journal of Entomology and Zoology Studies
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P-ISSN: 2349-6800, E-ISSN: 2320-7078

Journal of Entomology and Zoology Studies

2019, Vol. 7, Issue 4
Bioefficacy of some newer ecofriendly insecticides against rice hispa (Dicladispa armigera Oliver) under rice ecosystem of eastern Uttar Pradesh

Gyan Prakash Morya and Rajnish Kumar

An evaluation was conducted on the bio efficacy of some ecofriendly insecticides for the management of rice hispa (Dicladispa armigera Oliver) under rice ecosystem of Eastern Uttar Pradesh for the two consecutive years (2014 and 2015) at farmer field of district Deoria. This evaluation was observed most effective ecofriendly insecticides concerned to lowest infestation, lowest P: D ratio, and highest yield. There were 10 treatments (09 insecticides + 01 check) evaluated under randomized block design (RBD) by transplanting method of rice cultivation on localized popular rice cultivar Samba Mahsuri. The surveillance was conducted as per methodology of agro ecosystem analysis (AESA) (Pontius et al., 2002) modified as accessibility. The rice hispa is an endemic insect pest of rice and accounted for 25-65% yield loss. It was observed most serious insect pest and confined infestation over 15% during the study. The insecticide treatments comprise 9 insecticides (Cartap Hcl, 50 SP, Indoxacarb 14.5 SC, Imidacloprid 17.8 SL, Chlorpyriphos 20 EC, Thiamethoxam 25 WG, Chlorantraniliprole 18.5 SC, Azadirachtin (Neem Oil) 0.03 EC, Bacillus thuringiensis kurstaki (Btk) 3.5 WP, and combination of Neem Oil 0.03 EC + Btk 3.5 WP). There were 3 insecticides (Cartap Hcl, Imidacloprid and Neem Oil + Btk) inference non-significant for lowest infestation; 2 insecticides (Imidacloprid and Neem Oil + Btk) inference non-significant for lowest P:D ratio; 3 insecticides (Cartap Hcl, Imidacloprid and Neem Oil + Btk) inference non-significant for highest yield. There were 2 insecticides (Imidacloprid and Neem Oil + Btk) inference most effective ecofriendly insecticides. Though, both the insecticides (Imidacloprid and Neem Oil + BTK) were being most effective ecofriendly insecticides, yet Neem Oil + BTK as biorationals primarily would be the best choice before Imidacloprid for the most effective ecofriendly management of common rice hispa.
Pages : 1359-1364 | 227 Views | 83 Downloads


Journal of Entomology and Zoology Studies Journal of Entomology and Zoology Studies
How to cite this article:
Gyan Prakash Morya, Rajnish Kumar. Bioefficacy of some newer ecofriendly insecticides against rice hispa (Dicladispa armigera Oliver) under rice ecosystem of eastern Uttar Pradesh. J Entomol Zool Stud 2019;7(4):1359-1364. DOI: 10.22271/j.ento.2019.v7.i4w.9178

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