论文部分内容阅读
桃小食心虫(Carposina niponensis Walsingham)是远东地区重要蛀果害虫之一,在我国北方水果产区危害亦十分严重,有的果园虫果率高达50％。此虫危害苹果、梨、枣等。由于桃小食心虫发生规律不易掌握,用黑光灯及糖醋水诱捕均无效。目前用查幼虫、查果实上虫卵的测报方法,既费工费时、又不太准确。因此,迫切需要建立一种简便有效的测报方法,应用昆虫性信息素进行测报,方法简单、也便于推广使用。 1977年日本Tamaki等人从桃小食心虫雌蛾中分离并鉴定其性信息素的化学结构为顺-7-二十碳烯酮-11和顺-7-十九碳烯酮-11。本间健平等在田间试验中发现,当这两种成分以20:1混和使用时,诱蛾活性为最高。
Carposina niponensis Walsingham is one of the important fruit-boring pests in the Far East. It is also endangered in the fruit producing areas in the north of our country. This insect endanger apples, pears, dates and so on. As the peach moth worms are not easy to grasp the law, with black light and sweet and sour water trapping are ineffective. Currently used to check the larvae, check the fruit of the eggs measured method, both the cost of labor time, not accurate. Therefore, there is an urgent need to establish a simple and effective method of measuring and reporting the insects sex pheromone, which is simple and easy to popularize. In 1977, Tamaki et al. Isolated and identified the sex pheromones from the female moths as a cis-7-eicosenone-11 and a cis-7-nonenoconone-11. In this field Jian Ping found in field trials, when the two components to 20: 1 mixed use, the highest moth activity.