| 梨叶锈螨的研究 |
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| 引用本文： | 萧健民,黄茂松,杨志华,周美平,沈兰和.梨叶锈螨的研究[J].湖南农业大学学报(自然科学版),1995(1). |
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| 作者姓名： | 萧健民 黄茂松 杨志华 周美平 沈兰和 |
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| 作者单位： | 湖南农业大学植物保护系，岳阳市园艺场 |
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| 摘 要： | 梨叶锈螨Ｅｐｉｔｒｉｍｅｒｕｓｐｙｒｉ（Ｎａｌｅｐａ）是新发现的梨树严重害螨．以成螨、若螨寄生于梨叶背主脉两侧吸汁为害．产卵繁殖，卵单产、裸露，多产于叶背主脉两侧．每年９月中旬以成螨在土壤或主干树皮裂缝中越冬，翌年４月上、中旬出蛰，全年为害期约１５０ｄ，越冬期约２１０ｄ．一年中可出现两次螨口高峰：５月上、中旬为第一高峰期，８月中、下旬为次高峰期，影响该螨发生的重要环境因素是温度、降雨、食料、梨树品种和天敌，可用涂粘虫胶环、药剂、保护利用天敌等措施综合治理．５０％三环锡、７３％克螨特２０００倍液均有极好的防治效果．
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| 关 键 词： | 梨，蛛形纲，形态，生物学，防治／梨叶锈螨 |
A STUDY ON Epitrimerus pyri(Nelepa) |
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| Xiao Jianmin Huang Maosong Yang Zhihua Zhou,Meiping Shen Lanhe.A STUDY ON Epitrimerus pyri(Nelepa)[J].Journal of Hunan Agricultural University,1995(1). |
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| Authors: | Xiao Jianmin Huang Maosong Yang Zhihua Zhou Meiping Shen Lanhe |
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| Institution: | Xiao Jianmin Huang Maosong Yang Zhihua Zhou
Meiping Shen Lanhe Department of plant protection,HNAU,Changsha,410l28)Yueyang
Horticuture Farm,Yueyang,414000) |
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| Abstract: | Epitrimerus pyri(Nalepa)is newly found as a
species of pest damaging pearseriously. The adult and nymph mites absorb the juice from both
sides of the main veins onthe back of leaves. Reproduction is by means of laging eggs
individually and exposedly.Most of eggs are laid on the both sides of the main veins on the
back of leaves. In the middleseptember, the adults begin to hibernete in soil or in the fissure of
bark of trunk. The periodof hibernation is for about 2l0 days. The adults appear early and
middle April. Since then,the mites will do harm to pear for about l50 days. During a year, two
population peaks mayemerge : one is early and middle May, the other is middle and late
August. Important envi-ronmental factors to affect this species are temperoture, rainfall,
foodstaff, varieties of pearsand natural enemy insects. Integrated measures of control such as
applying gummy rings,chemical control and biological control can be used. 50%Cyhexatin or
73%Comite in dimu-tion of l : 2 000 has a perfect killing effect on mites. |
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| Keywords: | pears Arachnoidea morphology biology preventive treatment/Epitrimerus pyri |
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