核桃举肢蛾(Aeoloscelis sp.)是核桃主要害虫,以幼虫蛀食核桃青果,使果变黑而早落,直接影响当年产量。1977年,我们在洛南县石门公社安沟、沙岭、下铺三个大队调查,61株结果树中,受害树49株,受害株率达80.3%,受害果率达39.9%。这三个大队当年因举肢蛾为害减产1/3,少收核桃4,000多斤。目前,我国核桃产区大都沿用6%可湿性六六六和25%滴滴涕乳剂防治此虫,但由于这两种药对人畜有累积性毒害,国家已列为淘汰药剂,货源越来越少。所以探索防治核桃举肢蛾的新途径,是核桃生产和科学技术发展中的一个重要问题。为此,我所自1976年以来,于洛南县石门科研基点,应用青虫菌、7216菌、苏云金杆菌、杀螟杆菌和白僵菌进行防治试验,取得了一定的成果。现将情况整理如下: 一、田间套袋观察(一)分析杀虫的依据。通过观察,发现举肢蛾主要产卵于核桃青果上。卵经5—7天 Aeoloscelis sp. Is the main pest of walnut. The larvae eats walnut fruit and causes the fruit to darken and drop early, which directly affects the current output. In 1977, we surveyed three brigades of Angou, Shaling and Baobei, Shimen Commune in Luonan County. Among the 61 fruit trees, 49 trees were harmed and the affected strain rate reached 80.3% and the affected fruit rate reached 39.9%. The three brigade that year caused by the exhumation of moth cut 1/3, less than 4,000 kilos of walnuts. At present, most of the walnut producing areas in our country follow the 6% wettability of 666 and 25% DDT emulsions to prevent and control this pest. However, due to the cumulative toxicity of these two drugs to humans and animals, the country has been listed as phasing out pharmaceuticals with fewer and fewer sources of supply. Therefore, exploring new ways to prevent and control walnut moths is an important issue in the development of walnut production and science and technology. To this end, I since 1976, Luoyang County Shimen scientific research base, the application of coccidian bacteria, 7216 bacteria, Bacillus thuringiensis, Bacillus, and Beauveria bass for control trials, and achieved some results. The situation is now organized as follows: First, field bagging observation (a) analysis of insecticide basis. Through observation, we found that the main part of Ligustrum moth spawns on walnut green fruit. The egg by 5-7 days