title: Impact of the entomopathogenic fungus Verticillium lecanii on development of an aphid parasitoid, Aphidius colemani.
abstract: The parasitoid Aphidius colemani developed normally (approximately 90% adult emergence) when its cotton aphid (Aphis gossypii) host was treated with Verticillum lecanii conidia 5 or 7 days after parasitization. Fungus exposure 1 day before or up to 3 days after parasitization, however, reduced A. colemani emergence from 0 to 10%. Also, numbers of spores and mycelial fragments in aphid homogenates were much higher in aphids exposed to the fungus up to 3 days after parasitization than in aphids treated after 5 or 7 days. Our results suggest that the parasitoid and fungus may be used together for aphid biocontrol as long as fungus applications are timed to allow late-instar development of the parasitoid.
authors.affiliation: Applied Entomology Division, NIAST, RDA, Sedundong 249, Suwon 441-707, Republic of Korea. jjkim66@hotmail.com
authors.forename: Jeong Jun
authors.initials: JJ
authors.lastname: Kim
authors.forename: Kyu Chin
authors.initials: KC
authors.lastname: Kim
authors.forename: Donald W
authors.initials: DW
authors.lastname: Roberts
mesh_terms: D000818:Animals; D001042:Aphids / Q000469:parasitology*; D001203:Ascomycota / Q000502:physiology*; D006790:Host-Parasite Interactions; D006927:Hymenoptera / Q000502:physiology*; D010572:Pest Control, Biological / Q000379:methods*