新疆杏树吐伦球坚蚧的防治指标与田间药效试验
朱晓锋1，徐兵强1，阿布都克尤木·卡德尔1，图尔荪阿依·吐拉克2，李宏3，4，杨森1
(1.新疆农业科学院植物保护研究所，乌鲁木齐 830091；2. 新疆喀什地区疏勒县农业技术推广中心, 喀什疏勒 844200；
3. 新疆林业科学院，乌鲁木齐 830000；4.中国林业科学研究院，北京 100091)
摘要：通过对吐伦球坚蚧Rhodococcus turanicus Arch.种群密度与杏树产量的调查和田间药效试验研究得出：40%毒死蜱·机油乳剂对其防治效果较好，7 d后的防治效果可达83.99%；初步探明了吐伦球坚蚧的为害损失率，建立了杏树损失率与吐伦球坚蚧种群密度的回归模型为y = 24.671Ln(x)-16.56（y为杏产量损失率，x为种群密度，单位为头/30 cm），相关系数（R2）为0.82，并制定了不同价格下吐伦球坚蚧的防治指标。
关键词：杏；吐伦球坚蚧；田间药效试验；防治指标
Field efficacy trial and control threshold of Rhodococcus turanicus Arch. in apricot orchard in Xinjiang
ZHU Xiao-Feng1, XU Bing-Qiang1, Abudukeyoumu·Kader1, Tuersunayi·Tulake2, LI Hong3,4, YANG Sen1 (1. Institute of Plant Protection, Xinjiang Academy of Agricultural Science, Urumqi 830091, China; 2. Shule County Agricultural Technology Extension Station of Kashi, Shule Country 844200, Kashi, Xinjiang Province,China; 3. Xinjiang Academy of Fortest Science, Urumqi 830000, China; 4.Chinese Academy of Forestry, Beijing 100091, China)
Abstract: By the way of investigation to the field efficacy trial and the population density of Rhodococcus turanicus Arch., The result showed the control effect of 40% Chlorpyrifos+engine oil is significant, the relative control effect of 40% Chlorpyrifos+engine oil was 83.85%, The regression model between the loss rate of apricot and R. turanicus population was established as follow: y = 24.671Ln(x) - 16.56（y: the loss rate of the yield, x: the population density of R. turanicus, the unit was head/30 cm), the correlation coefficient was (R2) 0.82.
Key words: apricot; R. turanicus; field efficacy trial; control threshold
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