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枣粘虫是我国红枣产区的重要害虫。为探求防治新途径,对成虫生物学与性引诱进行了初步研究。枣粘虫一年发生三代,各代成虫发生的始、盛、末期分别为:第一代3/上——4/上—4/下;第二代6/上——6/中——6/下;第三代7/上——7/下——8/中。雌雄性比在0.86∶1和1.19∶1之间。一般雄蛾羽化早於雌蛾。95%以上成虫集中于早晨5——8时进行交尾。雌雄多次交尾,雌蛾平均1.48次,雄蛾3次。成虫寿命一般为一周左右,雌蛾寿命长於雄蛾。田间性诱试验表明:活雌蛾性诱以3头和5头的雌当量效果最好;粗提液以乙醚为溶剂的诱蛾数量最高;摘取腺体以羽化后48小时摘取的诱捕效果较好。通过对雌蛾性腺体所产生的性信息素进行EAG——GC以及色质联仪分析,初步确定枣粘虫性信息素的成份是一元不饱和十二碳烯醇乙酸酯的多元体系。经微量臭氧化测定,双键位置在7位和9位。田间生测表明以反、顺——9——十二碳烯醇酯(E、Z——9—C_(12)∶OAC)在比例为80∶20和83∶17时对雄蛾的诱捕效果最高。
Jujube armyworm is an important pest of jujube producing areas in China. In order to explore new ways of prevention and treatment, preliminary studies on adult biology and sexual attraction were conducted. Juvenile stage armyworms occur three generations a year, the generation of the adult onset, Sheng and the end are: the first generation 3 / on - 4 / on -4 / under; second generation 6 / on - 6 / medium - 6 / down; third generation 7 / up - 7 / down - 8 / medium. The ratio of male to female is between 0.86: 1 and 1.19: 1. General male moth emergence earlier than female moths. More than 95% of adults focus on mating in the morning 5 - 8. Multiple male and female mating, female moths an average of 1.48 times, male moths 3 times. Adult life expectancy is generally about a week, female moths live longer than male moths. The results showed that the fecundity of 3 and 5 females was the best in the field, and that of the crude extract was the highest with diethyl ether as the solvent. Trapping of the glands at 48 hours after eclosion The effect is better. Based on the EAG - GC and GC - MS analysis of sex pheromone produced by female gonads, it was preliminarily confirmed that the composition of Pistacium obscutella pheromone was a multicomponent system of monounsaturated dodecenol acetate . Measured by micro-ozonation, the double bonds are located at positions 7 and 9. The field measurements showed that the male moths were trapped at the ratio of 80:20 and 83:17 with cis - 9 - dodecene (E, Z - 9-C_ (12): OAC) The highest effect