The observed sex ratio ofPediobius foveolatus [Hym.: Eulophidae] in field populations ofEpilachna varivestis [Col.: Coccinellidae]

Autor: P. A. Zungoli, A. L. Steinhauer, L. M. Stevens, J. U. McGuire
Rok vydání: 1977
Předmět:
Zdroj: Entomophaga. 22:175-177
ISSN: 1573-8248
0013-8959
DOI: 10.1007/bf02377840
Popis: Larvae ofEpilachna varivestisMulsant, parasitized byPediobius foveolatus (Crawford), were collected in soybean fields in Maryland during 1975. AdultP. foveolatus emerging from the larvae were sexed and counted. The ratio of males to females increased as the availability of food within the host decreased. This information is useful in development of exponential models predicting hostparasite interactions.
Databáze: OpenAIRE