招引益鸟防治梭梭林害虫试验

Experiment of attracting beneficial birds to control pests in Haloxylon ammodendron forest

阿拉善左旗地处荒漠戈壁,森林资源匮乏,生物多样性差,抵御虫害能力弱,虫害防治成本高、难度大。为探索低成本、无公害的林业有害生物防控措施,在荒漠灌木林区开展筑巢引鸟、以鸟治虫生物防治试验。结果表明:试验区人工鸟箱总占用率达到66.7%;招引鸟种为黑顶麻雀Passer ammodendri,繁殖期间主要取食对象为黄古毒蛾Orgyia dubia(Tauscher);每个鸟箱控制范围1 hm^(2)以上,试验区黄古毒蛾平均虫口减退率达到79.0%。

Alxa Left Banner is located in the gobi desert terrain,with scarce forest resources,poor biodiversity,weak resistance to pests,and high and difficult pest control costs.In order to explore low-cost and pollution-free forest pest prevention and control measures,the biological control experiment of nesting to attract birds and controlling pests with birds was carried out in desert shrub forest areas.The results showed that the total occupancy rate of the artificial bird cage in the experimental area reached 66.7%,the species of birds attracted was Passer ammodendri,and the main feeding object during the breeding period was Orgyia dubia(Tauscher).The control range of each bird cage was more than 1 hm^(2),and the average decline rate of the population of O.dubia in the experimental area was 79.0%.