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进入4、5月份又到了跳甲虫泛滥和为害的时候,由于跳甲虫能飞善跳,给防治带来一定难度。跳甲虫在有些地方也被称为菜蚤子、土跳蚤、黄跳蚤等,危害作物广泛,对萝卜、白菜、甘蓝、油菜、芥菜以及对茄果类、瓜类、豆类、香蕉等都能造成危害,这几年在一些地区有加重发生的趋势。跳甲虫主要以成虫危害植物的叶片为主,被害叶片形成很多小穿孔或仅剩下透明表皮。成虫取食有趋嫩性,因而幼苗期危害重,尤其是刚出土的幼苗,受害后不能生长,往往造成毁种。春夏和冬季是跳甲虫两个危害较重的高峰期。春夏气候适宜,各种蔬菜较多;冬季大棚内温、湿度适宜,有利用
Into April and May went to the flea beetle proliferation and damage, as jumping beetles can fly good, to prevent some degree of difficulty. Beetle in some places also known as the vegetable fleas, soil fleas, yellow fleas, etc., endangered crops wide range of radishes, cabbage, cabbage, rapeseed, mustard and on the fruits and vegetables, melons, beans, bananas and so can Causing harm, in recent years in some areas have aggravated the trend. Beetle is mainly insects endanger the leaves of plants, the victim leaves a lot of small perforation or only transparent epidermis. Adult feeding tendentious, so heavy seedling damage, especially the newly excavated seedlings can not grow after the victims, often resulting in destruction of species. Spring and summer and winter is the peak of two heavy beetles harms. Appropriate spring and summer climate, a variety of vegetables more; winter greenhouse temperature and humidity suitable for use