栗瘤蜂，也叫栗癭蜂，是一種繁殖能力強
，體長2~3毫hao米mi，能neng夠gou孤gu雌ci生sheng殖zhi的de小xiao蜂feng。栗li瘤liu蜂feng的de產chan卵luan點dian主zhu要yao是shi在zai栗li樹shu的de一yi年nian生sheng枝zhi頂ding部bu芽ya內nei或huo葉ye上shang。栗li瘤liu蜂feng的de幼you蟲chong寄ji生sheng於yu附fu著zhe在zai新xin梢shao上shang的de癭ying瘤liu內nei，在zai每mei個ge癭ying瘤liu內nei，藏zang著zhe1~13頭幼蟲
，多為2~5頭。栗瘤蜂專門危害栗樹的嫩梢
、葉片和結果枝，在枝條、葉ye柄bing和he葉ye脈mai上shang形xing成cheng栗li瘤liu，使shi栗li樹shu不bu但dan當dang年nian不bu能neng結jie果guo，而er且qie也ye影ying響xiang下xia年nian的de結jie果guo，可ke使shi整zheng個ge枝zhi條tiao幹gan枯ku死si亡wang，甚shen至zhi絕jue產chan。因yin此ci，果guo農nong稱cheng栗li瘤liu蜂feng是shi長chang在zai栗li樹shu上shang的de“癌症”。
   
　　栗瘤蜂大發生年份，栗樹受害最為嚴重，有的1株樹有萬餘個栗瘤。但栗瘤蜂在某些年份危害又不那麼嚴重
，原因是栗瘤蜂幼蟲寄生的栗樹癭瘤內

，有一種體長4毫米，淡黃白色
，瘦小，兩端尖，蟲體向腹內側卷曲
，並有黃褐色稀疏細毛，性格活潑的小肉蟲，這就是栗瘤蜂的專食性天敵———changweixiaofengdeyouchong。changweixiaofengchengchongjiaoweihou，xunzhaoyouliliufengyouchongdenenliu

，ranhoubachanluanqicharuliunei，luanchanzaililiufengchongshideshibishang
，yiliangtianhouyouchongzhuandaoliliufengyouchongchongtishang，yaopoliliufengyouchongdetibi
，yixishiqitiyeweisheng，yibanyigechangweixiaofengyouchong，jinjishengyigeliliufengyouchong。suoyi，fanshichangweixiaofengjishenglvgaodedifang
，liliufengyouchongdeweihailvjiuxiajiang。
   
　　youyuchangweixiaofengdeyouchongchangqijijuzaililiufengdeyingliunei，bingyouhenchangyiduanshijianyuliliufengdeyouchongtongju
，suoyirenmenwangwangbachangweixiaofengdeyouchongcuorenweishililiufengdeyouchong。zheyang
，zaidongjixiujianshibaliuzhichudiao，zheshibukexuede。bixubaohuheliyonghaochangweixiaofeng，zaiqijishenglvgaodebanlichanqu
，bameiniandongjijianxiadegankuliutuoshanbaoguan，yu4~5yuebatatoufangzailiyuan，shiqiyuhuahouzaicichanluanyuyingliunei，cishikongzhipenyao，yifangshashangchangweixiaofeng，ranhouzaibaganyingliushaodiao，kejianqingliliufengdeweihai，changweixiaofengyibanziranjishenglvkeda40%。栗li瘤liu蜂feng成cheng蟲chong喜xi歡huan在zai樹shu冠guan內nei膛tang無wu風feng鬱yu閉bi的de細xi弱ruo枝zhi的de芽ya上shang產chan卵luan危wei害hai。因yin此ci，在zai修xiu剪jian時shi要yao徹che底di疏shu除chu細xi弱ruo枝zhi
，可ke有you效xiao地di消xiao滅mie芽ya內nei越yue冬dong幼you蟲chong。夏xia季ji剪jian除chu嫩nen綠lv癭ying瘤liu，並bing將jiang之zhi燒shao毀hui和he深shen埋mai。用yong除chu蟲chong藥yao時shi，應ying避bi開kai長chang尾wei小xiao蜂feng成cheng蟲chong發fa生sheng期qi和he產chan卵luan期qi。