黄岩县拱东公社唐家岙大队是个半山区,从1966——1971年,先后开山种桔100余亩,1972年收获桔果52000斤。由于吸果夜蛾为害严重,开始社员积极挖除中间寄主,但因中间寄主植物种类多,山地面积大,难于彻底消灭,只得采用套纸袋办法保护桔果,花 Huangyan County arch East commune Tangjiatang brigade is a half-mountain area, from 1966-1971, has opened up more than 100 acres of trees, 1972 harvest of 52000 pounds of orange fruit. Due to the serious damage of the fruit-bearing diamondback moth, community members were initially actively excavated. However, due to the large host plant species in the middle and large mountainous areas, it is difficult to eliminate them completely and only the paper-bag method is used to protect orange fruit and flower