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松黄叶蜂(Neodiprlon sertifer Geoffroy)又名松锈叶蜂、松黄锯蜂,当地群众称“绿虫”或“七分虫”。属膜翅目,锯节叶蜂科。是松林的严重害虫之一。自1954年以来,该虫曾先后七次在陕西黄龙山林区的北寺山、官庄、圪台、石堡、瓦子街等地发生。主要为害人工或天然油松(Pinus tabulaeformis)幼中龄林,不仅直接威胁松树的正常生长,而且被害年的木材生长量下降。我局北寺山林场曾于1957年对该虫作过一些观察,作者于1963—1966年,先后在该林区的北寺山、圪台、石堡、瓦子街等地对其生物学特性、发生规律及其防治进行了比较详细的调查研究。现将结果报道如下: 一、生物学特性 (一)生活史 松黄叶蜂在黄龙山林区一年发生一代,以卵越冬。翌年4月上中旬开始孵化幼虫,5月上中旬幼虫为害最盛,5月底到6月初幼虫老熟结茧,9月上旬化蛹。9月下旬到10月上旬羽化产卵,开始越冬。
Nephrotic leaf bee (Neodiprlon sertifer Geoffroy), also known as pine rustleaf, pine saw bee, local people called “green worm” or “seven insects.” Is a Hymenoptera, saw section Beeswax. Is one of the pine pests. Since 1954, the insects have occurred seven times in Beisishan, Guanzhuang, Tantai, Stone Fort, Wazi Street and other places in Huanglongshan Forest Area, Shaanxi Province. The young middle-aged forest, mainly for artificial or natural Pinus tabulaeformis, not only directly threatens the normal growth of pine trees, but also reduces the wood growth during the year of victimization. Beitunshan Forest Farm of our bureau made some observations on the pest in 1957. From 1963 to 1966, the author studied the biological characteristics of the pest, such as Beisu Mountain, Tantai, Stone Fort, Wazi Street, Occurrence of the law and prevention carried out a more detailed investigation. Now the results reported as follows: First, the biological characteristics (A) life history Pine yellow bee in Huanglongshan forest a generation a year, overwinter with eggs. Larvae begin to hatch in the middle of April the following year. The larvae are most affected in mid-May and late May to early June. In late September to early October eclosion spawning, began to wintering.