תוצאות חיפוש: Jay A. Rosenheim

Our ability to improve biological control of insect pests depends on our understanding of factors that limit the reproductive success of their natural enemies in the field. Pest control by parasitoids in agricultural fields can be compromised by the availability of sugar resources. We studied sugar availability for Anagrus parasitoids that parasitize the eggs of leafhopper pests (genus Erythroneura) in vineyards in northern California.

Debates on the relative importance of different factors in limiting the realized fitness of insect parasitoids and herbivores have continued for decades. We used a novel technique to estimate lifetime reproductive success in two Anagrus spp. parasitoids, whose hosts are eggs of leafhoppers that feed on grape leaves.