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oviposition substrate

International Journal of Tropical Insect Science (1)

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1 results

Comparison of different materials as Helicoverpa armigera (Hübner) oviposition substrates
Vanit Kathuria, Nutan Kaushik
Journal:

International Journal of Tropical Insect Science / Volume 24 / Issue 4 / December 2004

Published online by Cambridge University Press:

28 February 2007, pp. 336-339

Print publication:

December 2004
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In studies aimed at optimizing the substrate for rearing Helicoverpa armigera (Hübner) under laboratory conditions, the noctuid's oviposition behaviour was studied in the laboratory using pigeonpea leaves, muslin cloth, tissue paper and cotton wool as oviposition substrates in free-choice and no-choice tests. Egg counts revealed the moth's preference for oviposition substrate, in descending order, to be cotton wool, pigeonpea leaves, tissue paper and muslin cloth. The preference index of cotton wool was 65% higher than the least preferred substrate, muslin cloth. A total of 300 eggs per female were laid in the free-choice tests, while 200 were laid in the no-choice assays.