沈阳地区红头阿扁叶蜂的研究初报

红头阿扁叶蜂(Ａｃａｎｔｈｏｌｙｄａｅｒｙｔｈｒｏｃｅｐｈａｌａ(Ｌ.))是近年来在沈阳东陵地区发现的一种害虫,是辽宁省新记录种。已知该虫分布在黑龙江(带岭)、英国、朝鲜、美国。在沈阳,主要危害油松ＰｉｎｕｓｔａｂｕｌａｅｆｏｒｍｉｓＣａｒｒ.、华山松Ｐ.ａｒｍａｎｄｉＦｒａｎｃｈ、白皮松Ｐ.ｂｕｎｇｅａｎａＺｕｃｅｅｘＥｎｄｌ.、赤松Ｐ.ｄｅｎｓｉｆｌｏｒａＳｉｅｄ.ｅｔＺｕｃｃ.、樟子松Ｐ.ｓｙｌｖｅｓｔｒｉｓＬｉｎｎ.ｖａｒ.ＭｏｎｇｏｌｉｃａＬｉｔｖ.。林木受害后,轻者枝梢干枯,重者整株死亡。近几年,我们对这…

A PRELIMINARY REPORT OF THE SAWFLY,ACANTHOLYDA ERYTHROCEPHALA (HYMENOPTERA:PAMPHILIIDAE) IN SHENYANG

Acantholyda erythrocephala, a kind of destructire insec t, is found recently in Shenyang, China. Its host tree is Pinus spp. especia lly Pinus tabulaeformis and P.densiflora. The injured branch, tip will b e withered or even died. The harmful period of the larvae is about one month. Th ere is one generation during a year in Shenyang area. Winter is passed as prepup ae by making earth cells in the soil at the depth of 0～10cm. It can be controll e d by many ways:set up closed forest; making conopy density be more than 0.7; dig ging out the forest soil in autumm, winter or early spring; cutting the larval n ests and burning up; spraying 10% pyrethrum at 8000x ditution to the early insta r larvae.