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核桃扁叶(虫甲)(Gastrolina fhoracica Baly)属鞘翅目叶(虫甲)科。主要分布在东北三省。成虫和幼虫均为害核桃楸叶部。核桃扁叶(虫甲)在我场于1978年春天发现,被害较轻。由于核桃楸树分布零散,树干又高,防治不便,未能及时防治。到1980年为止,全场已有2000多亩核桃楸严重受害,有73.5％的核桃楸叶片被害虫吃光。由于连年受害,严重地影响和威胁着寄主树木的正常生长和发育,并已有6.4％的林木受害致死。核桃楸不仅是东北珍贵的“三大硬阔”树种之一,而且还是十分名贵的木本粮油树种。
Gastrolina fhoracica Baly (Coleoptera) is a Coleoptera (Entomosis) family. Mainly distributed in the three northeastern provinces. Adult and larvae are harmful Juglans spp leaves. Walnut leaf (insect) found in my field in the spring of 1978, was killed. Due to the scattered distribution of walnut Catalpa bungei, tree trunks and high, prevention and control inconvenience, failed to timely control. By 1980, 2000 acres of konjac had been seriously injured in the audience, 73.5% of which were eaten by pests. As successive years of victimization seriously affected and threatened the normal growth and development of host trees, and 6.4% of the trees were killed. Juglans mandshurica is not only one of the precious “three hardwoods” species in Northeast China, but also a very expensive woody oil tree species.