If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Dosage/Mortality Response of Spodoptera frugiperda (Lepidoptera: Noctuidae) and Other Noctuid Larvae to Beta-exotoxin of Bacillus thuringiensis

$28.00 plus tax (Refund Policy)

Buy Article:

Abstract:

A -exotoxin of Bacillus thuringiensis Berliner was tested on first-, third-, and fourth-instar Spodoptera frugiperda (J. E. Smith), Heliothis zea (Boddie), and Trichoplusia ni (Hübner). Larvae were placed on diet including 10–12 concentrations of the -exotoxin ranging from 0 to 200 g (AI)/ml of diet. LC50's for first-, third-, and fourth-instar S. frugiperda were 0.4, 7.2, and 123.7 g (AI)/ml, respectively. H. zea larvae were less sensitive to the toxin, with LC50's for first, third, and fourth instars of 1.0, 14.2, and 127.3 g (AI)/ml, respectively. T. ni was most sensitive, with LC50's of 0.3, 5.2, and 14.4 g (AI)/ml for first, third, and fourth instars, respectively. Dose/mortality response curves for fourth-instar S. frugiperda and T. ni were nonlinear throughout the assay period and indicated a possible feeding deterrent factor associated with the toxin. Fecundity of moths developing from larvae exposed to -exotoxin was lower than fecundity of moths developing from larvae fed on untreated diet.

Document Type: Research Article

Publication date: August 1, 1987

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

Tools

Favourites

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
X
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