Muhammad Afzal
Department of Zoology, Government College University, Faisalabad, Pakistan
Muhammad Hussnain Babar
Entomological Research Institute, Faisalabad, Pakistan
Ibrar-ul-Haq
Entomological Research Institute, Faisalabad, Pakistan
Zafar Iqbal
Entomological Research Institute, Faisalabad, Pakistan
ABSTRACT
Present research was carried out to evaluate the comparative efficacy of five new insecticides viz., diafenthiuron (polo 50%SC), thiamethoxam (actara 25%WG), acetamiprid (diamond 20%SP), imidacloprid (confidor 20%SL) and thiacloprid (calypso 24% OD) at field recommended doses against jassid, Amrasca devastans on cotton variety Bt- 121 grown at farmer field Chak No. 253/R.B, Faisalabad. Insecticides sprayed when population of jassid reached to economic threshold level (ETL) i.e., 1- 1.5/leaf. The data regarding mean number of jassid per leaf was taken and converted in to mean percentage mortality to find out differences among the treatments. The results of present study showed that Imidacloprid, diafenthiuron, acetamiprid and thiamethoxam were most effective insecticides against jassid up to seven days after application. While, Imidacloprid and diafenthiuron gave maximum mortality during first spray (92.42 and 88.56%) and second spray (90.87 and 85.67%) after 72 h of application.
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How to cite this article
Muhammad Afzal, Muhammad Hussnain Babar, Ibrar-ul-Haq and Zafar Iqbal, 2014. Relative Efficacy of Different Insecticides Against Jassid, Amrasca devastans
(Dist.) on Cotton, Bt-121. Pakistan Journal of Nutrition, 13: 344-347.
DOI: 10.3923/pjn.2014.344.347
URL: https://scialert.net/abstract/?doi=pjn.2014.344.347
DOI: 10.3923/pjn.2014.344.347
URL: https://scialert.net/abstract/?doi=pjn.2014.344.347
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