Encapsulation of Eggs and Larvae of Dacnusa dryas (Hymenoptera: Braconidae) by the Alfalfa Blotch Leafminer (Diptera: Agromyzidae) and its Importance in Host-Parasite Coexistence

Autor:	F. Meloche, J. C. Guppy
Rok vydání:	1990
Předmět:	Ecology biology fungi Biological pest control Parasitism Hymenoptera biology.organism_classification Parasitoid Horticulture Agromyzidae Insect Science Botany Instar Agromyza Braconidae Ecology Evolution Behavior and Systematics
Zdroj:	Environmental Entomology. 19:423-427
ISSN:	1938-2936 0046-225X
DOI:	10.1093/ee/19.2.423
Popis:	Eggs and larvae of the braconid parasite, Dacnusa dryas (Nixon), were encapsulated by third instars of the alfalfa blotch leafminer, Agromyza frontella (Rondani). Capsule formation was followed by death of the parasites and melanization and size reduction of the cadaver. The incidence of encapsulation of solitary parasites was consistently low, decreasing the effective rate of parasitism by an average of 10%. Supernumeraries were encapsulated without exceptions. The importance of encapsulation to the stability of the host-parasite association is discussed.
Databáze:	OpenAIRE
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