Laboratory Evaluation of Neem-seed Extract Against Larvae of the Cabbage Looper and Beet Armyworm (Lepidoptera: Noctuidae)

$28.00 plus tax (Refund Policy)

Buy Article:


Neem-seed extract, incorporated into an artificial diet at 0.02, 0.2, and 2.0% (wt/vol) prolonged development and induced mortality in all larval stages of Trichoplusiani (Hübner) and Spodoptera exigua (Hübner). Only one nonreproductive T. ni adult female was produced at the lowest concentration (0.02%) when fifth instars were exposed to the diet. No pupae were formed by S. exigua larvae, regardless of stage treated or extract concentration tested. Larva mortality of both species was more pronounced during ecdysis, indicating activity similar to that of other insect growth regulators.

Document Type: Research Article

Publication date: February 1, 1986

More about this publication?
  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
  • Editorial Board
  • Submit a Paper
  • Subscribe to this Title
  • Information for Advertisers
  • Visit this journal's homepage
  • ingentaconnect is not responsible for the content or availability of external websites
Related content



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more