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松蚜(Cinara Pinea Mordwiko)成、若虫危害松属(Pinus)树种1—2年生嫩梢或幼树枝干,成林松树也受危害。在我省主要危害油松及华山松。害虫多密集于枝干,少则数十,多则数百,吸食树液。当年生顶梢被害后基部缢缩,变褐,易风拆和萎蔫,对幼树生长影响特别大。我省过去曾在陕北黄陵,关中眉县、耀县、周至,陕南石泉、勉县、宁陕等县发现松蚜危害,1973年在武功、耀县周至等县亦有发生,如西北农学院校园内油松株被害率
Pine aphids (Cinara Pinea Mordwiko) into, nymphs endanger Pinus (Pinus) species 1-2 years shoots or young stems, pine trees are also endangered. Major hazards in our province pine and Huashan pine. Pests and more dense in the branches, ranging from dozens, as many as hundreds, taking tree liquid. The year after the top tip of the victim shrunk at the base, brown, easy to wind and wilt, particularly affected the growth of saplings. In the past, the province found that pine aphids were found in Huangling, Guanzhongmei County, Yao County, Zhouzhi County, Southern Shaanxi Province, Mianxian County and Ningshan County in Shaanxi Province. In 1973, magazines such as Wugong County and Zhouzhi County also occurred. Northwest Agricultural College campus pine tree damage rate