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Journal of Entomology and Zoology Studies
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ISSN Print: 2349-6800 | ISSN Online: 2320-7078

Journal of Entomology and Zoology Studies

2017, Vol. 5, Issue 5
Bioefficacy of insecticides on the immature and adult stages of spiralling whitefly on guava

MMH Khan

The experiment was conducted to evaluate the bio-efficacy of insecticides for the management of whitefly in Sharupkhati variety of guava at PSTU campus and in the laboratory of the Department of Entomology, PSTU during January to March 2013. Results revealed that the efficacy of test insecticides in decreasing order was Ripcord 10EC @ 0.75 ml/L of water> Karate 2.5EC @ 1.00 ml/L of water> Chita 48EC @ 0.75 ml/L of water> Aktara 25WG @ 5 g/ L of water which were effective in the reduction of 1st and 2nd instar nymphal populations of guava whitefly. In case of 3rd and 4th instar nymphs, the efficacy of test insecticides in decreasing order was Aktara 25WG @ 5 g/ L of water> Karate 2.5EC @ 1.00 ml/L of water> Chita 48EC @ 1.00 ml/L of water> Ripcord 10EC @ 1.00 ml/L of water for reducing whitefly populations. For the reduction of adult guava whitefly, the efficacy of test insecticides in decreasing order was Chita 48EC @ 1.00ml/l of water> Ripcord 10EC @ 1.00 ml/L of water> Aktara 25WG @ 5 g/ L of water> Karate 2.5EC @ 0.75 ml/L of water. The percent mortality of adult guava whitefly was higher in dipping method of insecticide application in all the treatments except control as compared to spray method.
Pages : 380-384 | 651 Views | 29 Downloads
How to cite this article:
MMH Khan. Bioefficacy of insecticides on the immature and adult stages of spiralling whitefly on guava. J Entomol Zool Stud 2017;5(5):380-384.
Journal of Entomology and Zoology Studies
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