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

Laboratory Studies on Effects of Three Permethrin Formulations on Mortality, Fecundity, Feeding, and Repellency of the Twospotted Spider Mite (Acari: Tetranychidae)

$28.00 plus tax (Refund Policy)

Buy Article:

Abstract:

A monosize droplet generator was used to apply discrete amounts of three permethrin formulations (Ambush, TF2465, and D325) to bean leaf disks. After treatment, five adult female Tetranychus ulrticae Koch were placed on the disks. Fecundity, mortality, feeding rate, and repellency were detennined 24 and 48 h later. For each formulation, six droplet densities were used with five replicate leaf disks per droplet density. Results indicated that the effects of permethrin on T. urticae varied with both formulation and droplet density. With Ambush and TF2465, significant reductions in feeding and oviposition were recorded concomitantly with a significant increase in repellency. All of these effects were significantly correlated with droplet density. With D325, no significant treatment effects were observed. If the typical irritant effect of pyrethroids is partially responsible for the resurgence of mite populations within apple orchards, use of formulations that do not elicit this effect (i.e., D325) may allow these pesticides to be applied safely for control of other target species.

Document Type: Research Article

Publication date: April 1, 1993

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