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高粱条螟是河北省高梁的主要害虫,近几年为害严重。过去对该虫的研究报道较少,防治多参阅玉米螟。1974—1976年,我们在永清县进行了系统调查和防治试验,初步明确了以下几个问题: 1.高粱条螟一年发生2代,第一代卵盛期在6月中旬末,第二代卵盛期在8月中旬。初孵幼虫有迅速潜入心叶的习性,并在所藏的叶鞘处啃食,2—3龄后在取食处直接蛀茎。 2.两年测产结果,春高梁蛀茎株率65％左右,产量损失32％;夏高粱蛀茎株率35％左右,产量损失8％。 3.药剂防治用0.25％1605颗粒剂(或毒土)的防治效果达80％左右,相当于5％滴滴涕颗粒剂,可以取代具有残毒的六六六、滴滴涕有机氯农药。
Sorghum borer is the main pests of sorghum in Hebei Province, serious damage in recent years. In the past, there were few reports on the pest, and the control was more on the corn borer. 1974-1976, we conducted a systematic investigation and prevention and control experiments in Yongqing County, initially identified the following issues: 1. The occurrence of sorghic two times a year, the first generation of egg peak in mid-June, the first The second generation of eggs peaked in mid-August. The newly hatched larvae have the habit of rapidly diving into the heart lobe and gnawing at the leaf sheaths stored therein. After 2-3 instars, the stems are directly eaten at the feeding place. 2. Two years of test results, spring sorghum moth stem rate of about 65% yield loss of 32%; summer Sorghum moth stem rate of about 35% yield loss of 8%. 3. Prevention and treatment of pesticide 0.25% 1605 granules (or poisonous soil) control effect of about 80%, equivalent to 5% DDT granules, can replace the residues of BHC, DDT organochlorine pesticides.