蟋蟀是农作物苗期的一种地下害虫,啃食作物幼苗,造成缺苗断垄。1996年我县森林公园0.27公顷银杏排栽苗遭到严重为害,笔者8月20日调查,受害株率85%,死苗率高达42%;同时调查蔬菜育苗地,为害株率平均仅6%。 Crickets are underground pests at the seedling stage of crops, grazing crop seedlings, resulting in lack of seedling broken ridge. In 1996, 0.27 hectares of Ginkgo biloba seedlings in Forest Park were severely damaged. On August 20, the author investigated 85% of the affected plants and the rate of dead seedlings was as high as 42%. At the same time, the average rate of damaged plants in vegetable nurseries was only 6% .