评价3种常用农药对茶树蓟马的田间防治效果。【结果】在12个茶树品种上共采集蓟马706头，经鉴定，隶属2科4属6种，包括蓟马科3属5种，分别为三鬃蓟马属的褐三鬃蓟马，蓟马属的黄蓟马、黄胸蓟马、棕榈蓟马，大蓟马属的端大蓟马；管蓟马科1属1种，即简管蓟马属的华简管蓟马。茶树上褐三鬃蓟马和黄蓟马发生最严重，分别采集到195和183头，占蓟马总数的27.62%和25.92%；其中昌宁大叶种上蓟马发生最严重，共采集蓟马149头，占茶树蓟马总数的21.11%。25 g/L多杀霉素悬浮剂、2.5%吡·高氮乳油和40%毒死蜱乳油3种农药对茶树蓟马均有一定的田间防治效果，药后7 d蓟马虫减退率和防效均达80.00%以上。【结论】茶树上的蓟马优势种为褐三鬃蓟马和黄蓟马，昌宁大叶种为蓟马偏好取食的茶树品种。微生物源生化农药25 g/L多杀霉素悬浮剂对茶树上蓟马的药效持久稳定，可作为今后防治茶树蓟马的首选农药。
关键词： 茶树；蓟马；农药；防效
中图分类号： S435.711 文献标志码：A 文章编号：2095-1191（2017）05-0831-06
Species of thrips on tea plant and control effect of
common pesticides against thrips
YANG Zhen1， LI Jian-xun1，2， XU Shu-juan3， SHI Feng-hong 1，
LI Zheng-yue1*， ZHANG Hong-rui1 *
（1 Plant Protection College， Yunnan Agricultural University， Kunming 650201， China； 2 Songshan Village Committee， Wenquan Town， Changning County， Yunnan Province， Changning， Yunnan 678107， China； 3 Horticulture Station of Jianshui County， Jianshui， Yunnan 654300， China）
Abstract：【Objective】Species of thrips were identified and effective pesticides against thrips were selected in order to provide theoretical reference for control of thrips. 【Method】The thrips species were investigated on twelve different tea varieties in the tea plantation of Yunnan Agricultural University by five-point sampling method， and the field control effect of three pesticides on thrips were evaluated. 【Result】A total of 706 thrips were collected， belonging to two families， four genera and six species， including three genera and five species of thripidac， which were Lefroyothrips lefroyi in Lefroyothrips， Thrips flavus， T. awaiiensis and T. palmi Karny in Thrips， one genera and one species of phlaeothripidae， which was Haplothrips chinensis in Haplothrips. The quantities of L. lefroyi（195 L. lefroyi） and T. flavus（183 T. flavus） were the largest， and accounted for 27.62% and 25.92% of total thrips. Trips on Changning big leaf was the most serious， 149 thrips were collected and accounted for 21.11% of the total. The three pesticides（25 g/L spinosad SC， 2.5% pyrazole·high chloride EC and 40% chorpyrifos EC） had some field control effects on thrips，the reduction rate and control effects were more than 80.00% 7 d after spraying. 【Conclusion】The dominant thrip species are L. lefroyi and T. flavus on tea plant， and Changning big leaf is favored tea variety by thrips. As a botanical pesticides， 25 g/L spinosad SC has persistent and stable control effects， which can be applied as preferred pesticide in thrips control.