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首次在福建省南部发现一种为害西番莲的新害螨 ,形态学鉴定为卵形短须螨 (Brevipalpusobovatus Donnadieu) .1 991-1 992年在室内饲养该螨 ,共 8-9代 ,卵期 6.0 -2 5 .0 d,幼螨期 3 .0 -1 4.0 d,若螨 期 2 .0 -1 2 .0 d,若螨 期 5 .0 -2 1 .5 d,产卵前期 2 .0 -3 0 .0 d,以雌成螨越冬 ,其寿命超过 3 0 d,最长达 2个月 .该螨在西番莲上雌雄比大于 2 0 0 0∶ 1 ,主要为孤雌生殖 .调查表明 ,卵形短须螨分布在漳州地区的紫色、黄色种西番莲和新引进的无性系“台农 1号”上 ,主要为害植株成龄叶片 ,田间种群数量高峰期出现在 1 1月份 .以前尚未有该螨为害世界其它地区西番莲的报道
For the first time in southern Fujian Province, a new pest that infest passionflower was found and its morphology was identified as Brevipalpus obovatus Donnadieu.1191-1992 The mites were housed indoors for 8-9 generations, 6.0 to 5.0 days, 3.0 to 4.0 days for young mites, 2.0 to 1.2 days for mites, 5.0 to 2.1.5 days for mites, .0 -3 0 .0 d, the male adult mites overwinter, the life expectancy of more than 30 days, up to 2 months. The mite in passion flower than the male to male ratio greater than 200: 1, mainly parthenoise Reproductive.The survey showed that the ovate short mites distributed in Zhangzhou purple and yellow species of passion flower and the introduction of the new clones “Tai Nong 1”, the main damage to plant aging leaves, the peak number of field populations in the January 1. The mite has not been reported before in other parts of the world