بررسی بیولوژی ‭Leucoma wiltshieri Collen (‬برگخوار سفید بلوط) و شناسایی دشمنان طبیعی کنترل کننده آن در منطقه باغملک

There are about 719842 hectares Forests in kuzestan provience Take into consideration the outbreak of leucoma wilts hi rei in Baghmalek woods which has destroyed the foliage of oak trees, this projection has been made to study the morphology. biology and identifying natural enemies. Therefore the results of this study is as Following: the wings of male and Female are white. The Female are bigger than male in size the eggs are 1 mm in diametere and can be laid on surface of the leaves and twigs of oak trees the incubation period of the eggs is about 8- 9 days. the larvae color is green to brown or red and each larve has 5-6 larval stages and takes about 40-50 days and during this stage they feed on oak leaves. The pupa cotor is green with a yellow band . The pupal period takes about 6-8 days. This insect has 3 generations in the Baghmalek area and its hibernation takes place in the 2nd and 3d larval stages within cracks of the bark of the trunk of oak trees. The over winter period takes about 8-9 months the natural enemies was investigated in this progection and is a follows: Species- Family- Host- Ooencyrtus sp- Encyrtidae- egg parasite of L.wiltshirel Apanteles sp- Braconidac- larvae parasite of L.wiltshirel Compsilura conclnnata Mg- Tachlnidae- larvae parasite of L.wiltshirel- Brachymerla Intermedia Nees- chalcididae- pupal Parasite of L.wiltshirel- Torymus triangularis- Torymldae- pupal Parasite of L.wiltshlrel Lioterphus sp- Torymldae- pupal ParasIte of L.wiltshlrel Tetrastichus evonymellae- Eulophidae- Hyper parasite of B. intermedia Tetrastichus n.r. defimbriatus- Eulophidae- Hyper parasite of B. intermedia Tryphon sp- ichneumonidae- parasite of pupa L.wiltshirel