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星天牛广泛为害苹果、梨、樱桃、李、枇杷、柑橘及多种林木,其幼虫在植株主干中、下部横向蛀食形成层及木质部,造成树体衰弱甚至全株枯死。对果树上星天牛幼虫的防治,过去曾使用人工刀挖。铁丝勾刺以及注射敌敌畏药液等方法,这不但伤害了树体,同时防治效果也较差。笔者1985～1988年对星天牛幼虫的防治途径进行了多方探讨,发现磷化铝片塞孔熏杀的方法效果很好,现报道如下。 一、试验材料和方法 本试验于1988年8月中、下旬在湖北郧县农科所苹果园内进行。该园面积60余亩,树龄15年生。主要品种有金帅、大国光、元帅、祝光、华农1号、金水苹、小国光等。星天牛为害株率为37.75%。选择被星天牛
Asteraceae widespread damage to apple, pear, cherry, plum, loquat, citrus and a variety of trees, the larvae in the plant trunk, the lower transverse eclipse formation layer and xylem, causing the tree is weak or even whole plant dead. Control of Aspen and Beat larvae on fruit trees has in the past been dug using a manual knife. Barbed wire and injection of dichlorvos liquid medicine and other methods, which not only hurt the tree, while the control effect is also poor. The author from 1985 to 1988 on the prevention and treatment of Asplenium larvae multi-way exploration and found that the aluminum phosphide plug hole smoked method works well, are reported below. First, the test materials and methods The test in August 1988, late in Hubei Yunxian Institute of Agriculture orchards. The park area of 60 acres, 15 years old tree age. The main varieties are handsome, big country light, Marshal, wish light, Hua Nong 1, Jinshui Ping, a small country light. Asclepias damaging strain rate was 37.75%. Choose to be a star cow