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松树红蜘蛛(Parate tranychus sp)属蜘蛛纲蜱螨目叶螨科的害虫,主要危害油松、赤松,亦能危害落叶松。近年来,该虫在辽宁西部和西南部地区的油松和赤松林中大量发生。成螨、幼螨为害当年生松针,使其变成棕红色,影响松树生长,后期造成松针枯黄脱落。虫害发生严重的地段,被害率达40—60%。干旱的年份,受害尤为严重。关于松树红蜘蛛的防治,河北林科所已有过报道,但对其生物学特性等方面的研究,尚未见报道。为做好防治工作,我们在阜新和辽
Parasitic spider (Parate tranychus sp) is a kind of arachnids of the arachnids Acarina, the main endanger pine, red pine, can also endanger the larch. In recent years, the insect occurred in large amounts in Pinus tabulaeformis and Pinus koriensis in western and southwestern Liaoning. Adult mites and young mites damage the pine needles at that time, turning them into reddish brown, affecting the growth of pine trees and causing pine needles to fall off in the later period. Pest damage occurred in lots, the victimization rate of 40-60%. Arid years, the victims were particularly serious. On the prevention and treatment of pine spider mite, Hebei Forestry Branch has been reported, but its biological characteristics of the study, have not been reported. To prevent and control work, we are in Fuxin and Liao