Larval parasitoids and larval diseases of Malacosoma neustria L. (Lepidoptera: Lasiocampidae) detected in Erzurum Province, Turkey

Authors : Hikmet ÖZBEK, Saliha ÇORUH

Pages : 447-459

View : 14 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The larval parasitoids and larval diseases of Malacosoma neustria insert ignore into journalissuearticles values(L.); insert ignore into journalissuearticles values(Lepidoptera: Lasiocampidae); in various host plants were investigated in Erzurum Province, Turkey, during 2004 and 2005. The larval parasitoids were reared in a laboratory, and a total of 29 parasitoid species were established in association with the larvae of M. neustria in the families Tachinidae insert ignore into journalissuearticles values(Diptera);, Braconidae, Ichneumonidae, and Chalcidoidea insert ignore into journalissuearticles values(Hymenoptera);. Of the 6 tachinid parasitoids, Pales pavida insert ignore into journalissuearticles values(Meigen); was the most prevalent species and accounted for 25% of the tachinid records. Among the tachinids, there were 2 new records for the Turkish fauna: Exorista amoena Mesnil and Palesisa nudioculata Villeneuve. Exorista amoena was reared from M. neustria for the first time. The braconid species Meteorus lionotus Thomson and Cotesia vanessa insert ignore into journalissuearticles values(Reinhard); were also reared from M. neustria for the first time. Among the 10 chalcidoid species reared, Monodontomerus aereus Walker and Brachymeria secundaria insert ignore into journalissuearticles values(Rusc.); were the most prevalent species. Five chalcidoid species, Asaphes suspensus insert ignore into journalissuearticles values(Nees);, A. vulgaris Walker insert ignore into journalissuearticles values(Pteromalidae);, Brachymeria secundaria insert ignore into journalissuearticles values(Ruschka); insert ignore into journalissuearticles values(Chalcididae);, Eupelmus urozonus Dalman insert ignore into journalissuearticles values(Eupelmidae);, and Eurytoma verticillata insert ignore into journalissuearticles values(F.); insert ignore into journalissuearticles values(Eurytomidae);, were reared from M. neustria for the first time. Of the 10 species of ichneumonids reared, Exeristes roborator F. was the most abundant and accounted for 35% of the total ichneumonid records. The total parasitism rate of all parasitoids was 33.7%. As disease agents of M. neustria, the nuclear polyhedrosis virus and 4 pathogenic bacteria, Brevibacillus agri, Alcaligenes xylosoxydans xylosoxydans insert ignore into journalissuearticles values(Achromobacter xylosoxidans);, Bacillus lentimorbus, and Serratia fonticola, were diagnosed. All of the bacteria from M. neustria were recorded for the first time. The percentage of diseased larvae was low, about 3%.
Keywords : Key words Lepidoptera, Lasiocampidae, Malacosoma neustria, parasitoids, disease, bacteria, virus, Erzurum, Turkey