Influence of Three Soybean Genotypes on Development of Voria Ruralis (Diptera: Tachinidae) and on Foliage Consumption by its Host, the Soybean Looper (Lepidoptera: Noctuidae)

Authors

  • J. F. Grant
  • M. Shepard

Abstract

Foliage consumption of three soybean genotypes (`Davis', D75-10230 and ED73-371) by nonparasitized soybean looper (SBL), Pseudoplusia includens (Walker) (Lepidoptera: Noctuidae), larvae and those parasitized by a South American strain of the tachinid, Voria ruralis Fallen, was investigated under laboratory conditions. Although there were no significant (p>0.05) differences among genotypes, parasitized and non-parasitized SBL larvae reared on the commercial cultivar Davis consumed slightly more foliage than those reared on either breeding line D75-10230 or ED73-371, but larvae reared on ED73-371 consumed the least amount of foliage. Parasitized SBL larvae consumed significantly (p =<0.05) less (ca. 40%) foliage than nonparasitized larvae, regardless of the soybean genotype. Mortality of parasitized SBL larvae (before the successful development of V. ruralis) was greatest (90%) on ED73-371 and least (37%) on D75-10230. The mean number of parasitoid puparia per SBL larva was significantly (p=<0.05) less when larvae were reared on ED73-371.

Downloads

Published

1985-12-01

Issue

Vol. 68, No. 4 (December 1985)

Section

Literature Review Articles

License

Copyright for any article published in Florida Entomologist is held by the author(s) of the article. Florida Entomologist is an open access journal. Florida Entomologist follows terms of the Creative Commons, Attribution Non-Commercial License (cc by-nc). By submitting and publishing articles in Florida Entomologist, authors grant the FOJ and Florida Entomologist's host institutions permission to make the article available through Internet posting and electronic dissemination, and to otherwise archive the information contained both electronically and in a hard printed version. When used, information and images obtained from articles must be referenced and cited appropriately. Articles may be reproduced for personal, educational, or archival purposes, or any non-commercial use. Permission should be sought from the author(s) for multiple, non-commercial reproduction. Written permission from the author(s) is required for any commercial reproduction.