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我队位于宣城,有果园一千三百多亩,仅梨树就将近一千二百多亩(二万七千多株)。近几年来,梨金緣吉丁虫为害严重,受害最重的是幼年梨园(五年左右);致使全株死亡的有六千二百五十株,換中央領导干的有二百八十四株,锯掉主干进行更新的有八百六十四株。另据了解,在宣城、广德等县园艺場以及郎溪县白茅岭农場等地梨树受害也很严重虼?它是皖南山区梨树生产上最严重的一种害虫。現将我队五年来(1959—1963年)观察此虫发生規律及防治方法上所
Our team is located in Xuancheng, with an area of 1,300 mu of orchards, with a total area of only 1,200 mu (more than 27,000) of pear trees alone. In recent years, the golden pear jinjitian serious damage, the hardest hit is juvenile pear garden (about five years); resulting in whole plant death of 6250 strains, for the central leadership of the two hundred and eighty Fourteen strains were cut off from the trunk for an update of 864 strains. It is also understood that in Xuancheng, Guangde and other horticultural fields as well as Langxi Baimao Ling farms and other places where victims of pear is also very serious 虼? It is the most Wannan mountain pear production of a pest. Now my team five years (1959 - 1963) to observe the law and prevention and control of this worm