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International Journal of Tropical Insect Science (1)

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Action Thresholds for the Management of Pod-borer, Adisura atkinsoni Moore on Field Bean, Lablab purpureus *
P. N. Krishna Moorthy, G. C. Tewari, K. Srinivasan
Journal:

Insect Science and Its Application / Volume 9 / Issue 4 / August 1988

Published online by Cambridge University Press:

19 September 2011, pp. 489-492

Print publication:

August 1988
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Management programmes for the use of action thresholds to initiate insecticide treatments for controlling pod-borer, Adisura atkinsoni on field bean were evaluated in comparison with standard sprays on calendar basis. Results of three field experiments revealed that management based on initial spray at peak egg laying on tender pods, followed by sprays to maintain 1.5 flat pod damage/inflorescence realised maximum benefit: cost ratio. This management also resulted in reduced insecticide usage.