Brief Heat Stress Negatively Affects the Population Fitness and Host Feeding of Aphelinus asychis (Hymenoptera: Aphelinidae) Parasitizing Myzus persicae (Hemiptera: Aphididae).

Aphelinus asychis Walker (Hymenoptera: Aphelinidae), a polyphagous parasitoid, has been widely used as a biological control agent against Myzus persicae (Sulzer) (Hemiptera: Aphididae) and other aphid species. In order to ensure the successful biological control of M. persicae, we evaluated the influence of brief heat stresses (32.