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hexachlorocyclohexane

International Journal of Tropical Insect Science (1)

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Economic Injury Level for Sorghum Earhead Bug, Calocoris angustatus Lethierry in Southern India *
N. Natarajan, P. C. Sundara Babu
Journal:

Insect Science and Its Application / Volume 9 / Issue 3 / June 1988

Published online by Cambridge University Press:

19 September 2011, pp. 395-398

Print publication:

June 1988
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Economic injury level (EIL) by the sorghum earhead bug was estimated for nymphs, feeding adults and ovipositing adults of sorghum earhead bug, Calocoris angustatus Lethierry, using malathion or hexachlorocyclohexane (HCH) as insecticidal control measure. EIL varied according to the insecticide used and the stage of the insect. EIL per panicle was 7.9 nymphs, 5.4 feeding adults or 0.06 ovipositing adults when HCH was used, which increased to 15.1 nymphs, 10.5 feeding adults and 0.12 ovipositing adults when malathion was used for control.