锈褐原花蝽在不同温度下的发育与积温必需条件

阿月浑子树木虱Agonoscena pistaciae Burckhardt and Lauterer （半翅目: 木虱总科）是伊朗园林树木阿月浑子树上常见的最具破坏性的害虫，其捕食性天敌锈褐原花蝽Anthocoris minki pistaciae Wagner在伊朗阿月浑子树种植区为该害虫的生防因子。本研究在17.5~35℃的8个恒温以及相对湿度55%±5%，光照周期16L∶8D的控制条件下，在A. pistaciae若虫上饲养这种捕食性花蝽的同时，调查温度对其发育的影响。结果表明：这种捕食性花蝽在17.5~32℃下可成功发育；然而在35℃下，卵不能孵化，且只有10%的若虫进入成虫阶段。30℃下从卵至成虫羽化的发育历期最短。据测算估计，这种捕食性花蝽的卵、若虫发育以及整个发育（卵至成虫）的积温分别为77，200和263度·日；卵、若虫和整个发育的低温度阈值分别为8.53, 9.2 和9.47℃。这些结果为建立阿月浑子树木虱的综合防治计划提供了宝贵的信息。

Development and thermal requirement of Anthocoris minki pistaciae ( Hemiptera: Anthocoridae) at different temperatures

The common pistachio psylla, Agonoscena pistaciae Burckhardt and Lauterer (Hemiptera:Psylloidea), is considered as the most destructive pests of cultivated pistachio trees in Iran. The predatory bug, Anthocoris minki pistaciae Wagner was found as a biocontrol agent for A. pistaciae in pistachio plantation areas of Iran. The influence of temperature on development of this predatory bug was studied at eight constant temperatures ranging from 17.5 to 35℃ and under controlled condition (55% ±5% R.H.and 16L:8D), while rearing on nymphs of A. pistaciae. The results showed that the predator develops successfully within a wide range of temperature 17.5 - 32℃, however the eggs almost failed to hatch at 35℃ and only 10% of bug' s nymphs reached to adulthood at 35℃ too. The shortest developmental time was obtained at 30℃ from egg to adult emergence. The thermal constants for development of egg, nymph and total development ( egg to adult) for this predatory bug were estimated to be 77,200 and 263 degreedays, respectively. The lower thresholds for egg, nymph and overall development were found to be 8. 53,9. 2 and 9. 47℃, respectively. These results provide valuable information to develop an integrated pest management program for the common pistachio psylla.