桃蛀螟 (DichocrocispunctiferalisGueneec)以幼虫蛀果为害 ,在龙眼树上的空间分布 ,以向南方位的中部、下部最多 ,其次是向西方位的下部 ,北中、北下方位最少。在龙眼不同的生长期 ,以成熟期最多 ,幼果期最少。桃蛀螟的天敌有绒茧蜂 (Apantelessp)、广大腿小蜂 (BrachymerialasusWalker)、抱缘姬蜂 (Temeluchasp) ,以果实膨大期寄生率最高 Dichocrocispunctiferalis Gueneec is predominantly larvae, and its spatial distribution in the longan tree is the lowest in the south, the lowest in the west, the lower in the west, and the least in the north and the north. Longan in different growth stages, the most mature, young fruit at least. The natural enemies of the moth borer were Apantelessp, Brachymerialasus Walker and Temeluchasp, with the highest rate of parasitism