摘要
通过对不同的鸟巢类型、在不同坡位悬挂鸟巢招引益鸟防治食叶害虫试验,结果表明:对于大山雀式、寒鸦式,鸟巢悬挂2个.hm-2招引率高,选择在阳坡及阳缓坡,树高4～6 m处悬挂鸟巢效果最佳。间伐地块,翌年鸟巢随即挂上,可提高招引率,降低虫口密度。通过悬挂鸟巢有效地控制了落叶松人工林内食叶害虫的危害。
Experiment was conducted by hanging bird＇s nest in different slope positions for attracting beneficial bird to control defoliators with different types of bird＇s nest.Result shows that： hanging 2 nests·hm-2 have higher attract rate with Parus major Corvus monedula type;hanging bird＇s nest on 4-6 m of the tree in sunny positive slope is optimal;thinning plots hanging bird＇s nest the following year can increase population density;hanging bird＇s nest can effectively control defoliators hazards in larch plantation.
出处
《防护林科技》
2011年第6期42-43,共2页
Protection Forest Science and Technology
关键词
鸟巢
招引益鸟
防治
食叶害虫
bird＇s nest
attract beneficial bird
control
defoliator
