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6 November 2015 Resistance of Dusky Cotton Bug, Oxycarenus hyalinipennis Costa (Lygaidae: Hemiptera), to Conventional and Novel Chemistry Insecticides
Saif ullah, Sarfraz Ali Shad, Naeem Abbas
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Abstract

The dusky cotton bug, Oxycarenus hyalinipennis Costa (Lygaidae: Hemiptera), is polyphagous in nature and has become one of the severe sucking pests of cotton in Pakistan. O. hyalinipennis has the potential to develop resistance to a number of insecticides, and as a result, O. hyalinipennis outbreaks occur. There is no previous study from Pakistan regarding O. hyalinipennis resistance to insecticides. Therefore, the aim of this study was to assess the resistance of different field populations of O. hyalinipennis to conventional (bifenthrin, deltamethrin, lambda-cyhalothrin, profenofos, triazophos) and novel chemistry (emamectin benzoate, spinosad, chlorfenapyr, imidacloprid, and nitenpyram) insecticides. Five populations of O. hyalinipennis, collected from Multan, Khanewal, Muzaffargarh, Lodhran, and Bahawalpur, were tested for resistance to selected insecticides by the leaf dip method. For three pyrethroids, the resistance ratios were in the range of 14- to 30-fold for bifenthrin, 2.14- to 8.41-fold for deltamethrin, and 9.12- to 16-fold for lambda-cyhalothrin, compared with the laboratory susceptible strain (Lab-PK). For two organophosphates, the range of resistance ratios was 12- to 14-fold for profenofos and 9.04- to 15-fold for triazophos. For five novel chemistry insecticides, the range of resistance ratios was 4.68- to 9.83-fold for emamectin benzoate, 6.38- to 17-fold for spinosad, 16- to 46-fold for chlorfenapyr, 11-to 22-fold for imidacloprid, and 1.32- to 11-fold for nitenpyram. Regular assessment of resistance to insecticides and integrated management plans like judicious use of insecticides and rotation of insecticides along with different modes of action are required to delay resistance development in O. hyalinipennis.

© The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com
Saif ullah, Sarfraz Ali Shad, and Naeem Abbas "Resistance of Dusky Cotton Bug, Oxycarenus hyalinipennis Costa (Lygaidae: Hemiptera), to Conventional and Novel Chemistry Insecticides," Journal of Economic Entomology 109(1), 345-351, (6 November 2015). https://doi.org/10.1093/jee/tov324
Received: 20 August 2015; Accepted: 19 October 2015; Published: 6 November 2015
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KEYWORDS
conventional and novel insecticide
dusky cotton bug
resistance
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