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【目的】研究石榴优势种害螨如今细须螨(Tenuipalpus hornotinus Chaudhri,1971)发生,为害规律、分布型和防治关键时期,为综合防治须螨提供科学依据。【方法】在调查区,按棋盘式取样法,选取20棵树,定树定枝观察如今细须螨发生、为害规律及树体分布状况,并选取几种中低毒杀螨剂,采用不同浓度进行药效试验,记录害螨死亡率。【结果】如今细须螨在喀什地区1年发生4代,以雌成螨越冬。8月初到9月初是为害高峰期,完成1代约需23～25d。以若螨和成螨聚集叶背部的叶脉、叶柄附近,取食汁液,使叶片色泽褪绿发黄或呈暗红,提前脱落,致树势衰弱影响果实发育。如今细须螨在石榴树中多分布于南和东面。秋季清园、深翻、刮除粗老翘皮、保护天敌和化学防治等方法控制如今细须螨种群效果最佳。【结论】如今细须螨6月初第1代卵孵化高峰期是防治的关键时期。
【Objective】 The study aimed to study the dominant species of pomegranate mites. Tenuipalpus hornotinus Chaudhri (1971), damage patterns, distribution patterns and key stages of prevention and treatment were reviewed in this paper to provide a scientific basis for the comprehensive control of mites. 【Method】 In the survey area, 20 tree species were selected by checkerboard sampling method. The occurrence and damage of fine mite mites and the distribution of their tree species were observed under the fixed tree twigs. Several kinds of low and medium toxic acaricides were selected, The efficacy test, record the mortality of pest mites. 【Result】 The present results showed that 4 generations occurred in the area of Kashgar at present, and overwinter as adult mites. Early August to early September is the peak of damage, to complete a generation of about 23 ~ 25d. If mites and mites gather leaf dorsal veins on the back, near the petiole, feeding juice, the color of the leaves chlorotic yellow or dark red, shedding in advance, causing the weakening of the tree affect the fruit development. Now fine mite mites in the pomegranate tree and more distributed in the south and east. Autumn Clearinghouse, deep plowing, scraping away the rough skin, protecting natural enemies and chemical control and other methods to control the current fine mites population optimum. 【Conclusion】 At present, the first generation egg hatching peak is the key period for prevention and control of the fine mite mite in early June.