TY - JOUR AU - Bakthavatsalam, N. AU - Tandon, P. L. AU - Patil, S. B. AU - Hugar, Bhemanna AU - Hosamani, A. PY - 2007/06/15 Y2 - 2024/03/28 TI - Kairomone Formulations as Reinforcing Agents for Increasing Abundance of Chrysoperla cornea (Stephens) in Cotton Ecosystem JF - Journal of Biological Control JA - JBC VL - 21 IS - 1 SE - Articles DO - 10.18311/jbc/2007/3883 UR - https://informaticsjournals.com/index.php/jbc/article/view/3883 SP - 1-8 AB - Adults and larvae of <em>Chrysoperla carnea</em> (Stephens) utilize different kairomones for oviposition, prey selection and acceptance. The larval kairomones containing scale extracts fortified with tricosane along with the eggs of <em>Corcyra cephalonica</em> (Stainton) as the supplementary diet, and the adult kairomone, acid hydrolyzcd L-tryptophan were studied to increase the predatory activity of the <em>C. carnea</em> in cotton ecosystem at three locations during 2002-2004. Controls were maintained with the two releases of <em>C. carnea</em> and without any treatment. In all the locations, the number of eggs, larvae, pupae or adult <em>C. carnea</em> was more than the treated control and control. The number of aphids, jassids, and the incidence of bollworm were significantly less in kairomone treated plots, compared to other plots. However, no difference was observed in the activity of coccinellids predators. The scope for utilizing the kairomones as reinforcing agents for <em>C. carnea</em> is discussed. ER -