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木兰巨小卷蛾Ｓｔａｔｈｅｒｏｔｉｓｔｈｒｅｎｏｄｅｓ（Ｍｅｙｒｉｃｋ）是木兰科Ｍａｇｎｏｌｉａｃｅａｅ植物叶部的主要害虫，在福建南平地区一年发生６代，世代重叠，以蛹越冬。每年５－７月间第２－３代为害最严重。卵散生在托叶表面，经２－４天孵化为幼虫；幼虫期１２－４２天；蛹期９－２０天；越冬蛹３６－５５天；成虫寿命３－８天，用甲胺磷、辛硫磷、敌敌畏、水胺硫磷、溴氰菊酯、氧化乐果对幼虫均有良好防治效果。该虫主要天敌有绒茧蜂Ａｐａｎｔｅｌｅｓｓｐ．、姬小蜂科Ｅｕｌｏｐｈｉｄａｅ３－４种以及陆马蜂ＰｏｌｉｓｔｅｓｒｏｔｈｎｅｙｉｇｒａｈａｍｉｖａｎｄｅｒＶｅｃｈｔ和广腹螳螂ＨｉｅｒｏｄｕｌａｐａｔｅｌｌｉｆｅｒａＳｅｒｖｉｌｌｅ等。
Statherotis threnodes (Meyrick) is a major pest in the leaves of the magnoliaceae plant of Magnoliaceae. It occurs six generations a year in Nanping, Fujian, and overlaps with each other and pupae wintering. From May to July each year 2-3 generations of the most serious damage. Eggs scattered on the surface of the stipules, hatching larvae after 2-4 days; larvae 12-42 days; pupal period 9-20 days; overwintering pupa 36-55 days; adult life 3-8 days, with methamidophos, Phoxim, dichlorvos, isocarbophos, deltamethrin, and omethoate had good control effects on larvae. The main natural enemy of the insect velvet Apantelessp. , Euploeidae Eulophidae3-4 species and land bees PolistesrothneyigrahamivanderVecht and Guangya mantis HierodulapatelliferaServille and so on.