摘要
本文报道了东方钝绥螨 Amblyseius orientalis 对苹果园里的苹果全爪螨 Panonychusulmi 和山楂叶螨 Tetranychus viennensis 的自然控制效果。在全年不喷杀螨杀虫剂的情况下,按照与苹果全爪螨成若螨1:57—73比例释放东方钝绥螨获全年叶片受害程度为5.5±3.1%,每叶有苹果全爪螨成螨0.3±0.2头、山楂叶螨0.1±0.2头和东方钝绥螨0.3±0.2头,相对防治效果为93.4%。还报导了东方钝绥螨和苹果全爪螨田间种群数量自然消长动态。
This paper reports the effectiveness of natural control of Amblyseius orientalis
on the apple red mites Panonychus ulmi and Tetranychus viennensis in a 0.3 hectars
of orchard with 351 apple trees of 15-year-old,and no any pestcides were used
in the growing seasons.12.7 ten thousand predacious mites Amblyseius orientalis
were released in the test orchard.The releasing proportion were 1:57-73 of
predacious mites to the apple red mite.This resulted that the average damage
leaves by red mites was 5.5±3.1%,and the relative value of the control effectiveness
in the year was 93.4%.The Tetranychus viennensis adult 0.1±0.2 and the Amblyseius
orientalis adult 0.3±0.2 on the per leaf were obainted,in the insectcides control
orchard the relative value was 64.3%,the average damage of leaves was
27.1+18.1%,The natural increase or decrease in quantity of Amblyseius orientalis
and Panonychus ulmi in fields were also reported.
出处
《昆虫天敌》
CSCD
1992年第1期21-24,共4页
Natural Enemies of Insects
基金
国家自然科学基金资助课题
关键词
东方钝绥螨
自然控制作用
叶螨
Amblyseius orientalis Natural control,Panonycnus ulmi,Tetranychus viennensis.
