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于都脐橙场于1989年建立,面积17hm~2,主栽品种为脐橙、宫川温州蜜柑,基砧为枳砧,中间砧为普通甜橙(1993年高接换种)。该场自投产后,吸果夜蛾为害重,高峰年份为害率达10％。损失很重。笔者于1997年进行了试验。结果如下。1材料和方法 试验用3盏25W黑光灯分3个设灯区和1个对照区进行,黑光灯由赣州地区森防站提供。8月27日于宫川温柑区装置一盏25W黑光灯为1号灯;9月17日在脐橙区安装2盏黑光灯,分别为2、3号。3盏
Yudu navel field was established in 1989 with an area of 17hm ~ 2. The main cultivars are navel orange, mandarin of Miyagawa, the root anvil is aurantium and the middle anvil is common sweet orange. Since the field put into operation, the weight loss of fruit-bearing moths, peak year damage rate of 10%. Loss is heavy. The author conducted a test in 1997. The result is as follows. 1 Materials and methods Test with 3 25W black light lamp is divided into three light zones and a control zone, black light provided by the forest defense stations in Ganzhou. On August 27th, a 25W black light was installed on Wengan District of Miyagawa as 1 lamp; on September 17, 2 black lights were installed on the navel orange district, namely No. 2 and No. 3 respectively. 3