Efficacy of insecticides for the control of onion thrips (Thrips tabaci Lindeman) on thrips population
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Author:
IQRA RAMZAN
Citable URI :
https://vspace.vu.edu.pk/detail.aspx?id=281
Publisher :
Virtual University
Date Issued:
1/8/2020 12:00:00 AM
Abstract
Onion is the major vegetable crop not only in Pakistan but also in other countries of the world. The onion bulb yield lies in the lower level than to other more developed areas of the world. Many reasons rose for this less yield. But the most important among all of them is the attack of pest insects and among insects the onion thrips is the notorious one .In the present study the efficacy of the insecticides i-e Dimethoate, Confidor, Lasenta, Proaxis and Spinosad was determined against thrips to in farmer’s field for two adjacent years. The data was collected before and then after the 24h, 72h, and 7 days of the use of insecticides. The analysis of this data revealed that all of the insecticides reduced thrips population. However, maximum reductions (3-1%) per plant in thrips population and increase in onion bulb yield (33.06t/ha) was attained with Dimethoate 40 EC. Whereas lowest onion thrips population and onion bulb yield (23.7 t/ha) was obtained from control plot where no insecticide was used against thrips. Therefore, the insecticide Dimethoate 40EC can be recommended for the control of onion thrips on onion crop.
URI :
https://vspace.vu.edu.pk/details.aspx?id=281
Citation:
Ramzan, I(2019). Efficacy of insecticides for the control of onion thrips (Thrips tabaci Lindeman) on thrips population. Virtual University of Pakistan.(Lahore, Pakistan).
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Final Version
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