28星瓢虫属于鞘翅目瓢虫科的多食性害虫,主要危害茄子、马铃薯、番茄等茄科作物,或野生的龙葵、曼陀萝等一些茄科杂草植物。也危害葫芦科和豆科等许多作物。目前在城郊茄田取样调查100株,每株10片叶,平均幼虫及成虫的数量为11头。最少3—5头,最多达几十头。使受害的植株叶片残缺不全,枯黄而死。 28-Star Ladybug Belongs to the family Coleoptera ladybug polyculture pests, the main endanger eggplant, potato, tomato and other Solanaceous crops, or wild Solanum nigrum, Mandolin and some solanaceous weed plants. Also endanger cucurbits and legumes and many other crops. Currently in the suburbs of Eda Sampling survey of 100 plants, 10 leaves per plant, the average number of larvae and adults is 11. At least 3-5, up to a few dozen. So damaged plant leaves incomplete, yellow and dead.