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柑桔锈壁虱Phyllocoptruta oleivorus(Ashm.)属瘿螨科,是世界性害螨。国外分布于南北美洲,叙利亚、日本、苏联、菲律宾和澳洲等地;国内各柑桔产区均有发生并造成不同程度的损失,其中又以浙江、福建、湖南、四川等地区为害最为严重。于1984—1985年在日光培养箱和人工气候箱内,分别在不同温度、品种、光照时数、不同期叶龄和不同受害程度等因子下,用叶片进行饲养,现将其结果初步整理如下: 一、温度因子试验:表1给出不同温度下柑桔锈壁虱的发育历期、寿命、死亡率、产卵量、种群趋势指数Ⅰ。可见卵在41℃下几乎都不孵化,少数孵化的一若也都死亡,柑桔锈壁虱非常耐高温,最适温度在26℃—32℃之间,重庆地区每年7—9月为该螨发生高峰期。
Citrus rust tick Phyllocoptruta oleivorus (Ashm.) Is a scaber mites, is a worldwide pest. Foreign distribution in North and South America, Syria, Japan, the Soviet Union, the Philippines and Australia and other places; all citrus producing areas have occurred and caused varying degrees of loss, of which again in Zhejiang, Fujian, Hunan, Sichuan and other areas the most serious damage. In 1984-1985 in the solar incubator and artificial climate chamber, respectively, at different temperatures, breeds, the number of hours of illumination, different ages and different levels of victimization and other factors, with the leaves for breeding, the results of the preliminary arrangement is as follows : First, the temperature factor test: Table 1 gives the citrus rust tick growth duration, life expectancy, mortality, fecundity, population trend index Ⅰ. Visible eggs almost do not hatch at 41 ℃, if a few hatch if they are dead, orange rust ticks are very high temperature, the optimum temperature between 26 ℃ -32 ℃, 7-9 per year in Chongqing for the Mite peak.