Journal of Biological Control

The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).

If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.

Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.

Fullscreen Fullscreen Off


Studies were carried out during 2003 and 2004 to find out the release technology of Trichogramma chilonis Ishii (weekly releases from July to October @ 1, 50, 000 ha) for the management of cotton bollworms. Releases as tricho-card (100, 150 and 200 points/ ha) were compared with adult releases. On the basis of incidencc of bollworms among fruiting bodies (17.63 and 16.79%), green bolls (26.87 and 14.14%), parasitization of Helicoverpa armigera (Hubner) eggs (17.41 and 19.64%) and seed cotton yield (8.24 and 9.26 q/ha). The releases as adult proved better. Releases at 200 points/ ha was better than releases at 100 and 150 points/ha.

Keywords

Bollworms, Cotton, Release Technology, Trichogramma chillonis.
User
Notifications