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白头松巢蛾,在我国首先发现于山西省安泽县,主要危害油松。1970年,我县白头松巢蛾大发生,使10多万亩油松人工林受害,造成当年生针叶干枯脱落,对林木的生长威胁很大。据调查,连续两年危害后,高生长减少78.66%。在中国林科院林研所和山西省林科所的帮助和指导下,我们对白头松巢蛾进行了多年的观察和防治研究,初步掌握了该虫的生活史、发生规律及防治措施。目前,虫口密度大大下降,据1978年6月底调查,油松针叶被害率,由1970年的92%下降到3%。
White-headed pine moth, first found in our country Anze County, Shanxi Province, the main endanger pine. In 1970, large-scale occurrence of white-headed pine moth in our county took more than 10 million mu of Pinus tabulaeformis plantation and caused the loss of dried needles in that year, threatening the growth of trees. According to the survey, for two consecutive years after the harm, high growth decreased by 78.66%. With the help and guidance of the Forestry Research Institute of Chinese Academy of Forestry and the Forestry Institute of Shanxi Province, we conducted many years of observation and prevention and control research on the white-backed pine moth, and grasped the life history, occurrence rules and prevention and control measures of the insect. At present, the population density of insects has greatly declined. According to the survey conducted in late June 1978, the rate of coniferous pine needles has dropped from 92% in 1970 to 3%.