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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

2016, Vol. 4, Issue 6
Resistant insecticides of cotton mealybug, Phenacoccus solenopsis (Tinsley) under laboratory conditions

Tasneem Kousar, Hakim Ali Sahito, Faheem Ahmed Jatoi, Zafar Hussain Shah and Wali Muhammad Mangrio

The cotton mealybug, Phenacoccus solenopsis (Tinsley) is well known as most vulnerable sucking insect pest of cotton crop which was found on different alternate host plants of different genera. Therefore, the synthetic and bio-synthetic pesticides namely; Lambda cyhalothrin, Imidacloprid, Profenofos, Cypermethrin and Neem oil (repellent) were applied to check their effect which was replicated five interval times. Thus, data were taken at uniform pre-treatments (100) counted mealybugs and the post-treatments on 1st, 2nd and 3rd day after application of insecticides at Entomology laboratory, department of Zoology, SALU - Khairpur during, 2015 under maintained room temperature 25±2 oC and air conditions 20±2 oC. The data were formulated under LDP line (Schneider-Orelli) formula. The insecticide Profenofos gave 42% mortality on 1st day after application smoothly less effected on 2nd and 3rd day. The neem oil provided the good results up to 20% reduction on 1st day after application. Whereas, the Cypermethrin and Imidacloprid were also found to be less effective up to 5-10% mortality and lambda cyhalothrin was failed to produce any significant result. The analysis of variance showed the significant difference among all pesticides (P<0.05). It is concluded that the Profenofos and neem oil (repellent) proved more effective up to 3 days when compared with other insecticides under both compared temperatures. Thus, the other tested insecticides are here by recommended to do not apply for the purpose of control this vigorous cotton pest and this rational Lambda pesticide should be banned and strongly forbidden for their application.
Pages : 355-359 | 979 Views | 43 Downloads
How to cite this article:
Tasneem Kousar, Hakim Ali Sahito, Faheem Ahmed Jatoi, Zafar Hussain Shah, Wali Muhammad Mangrio. Resistant insecticides of cotton mealybug, Phenacoccus solenopsis (Tinsley) under laboratory conditions. J Entomol Zool Stud 2016;4(6):355-359.
Journal of Entomology and Zoology Studies
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