摘要
梨喀木虱1年发生6～7代,以成虫在树干裂缝、杂草、落叶中越冬,对早酥梨为害最严重;已发现天敌有多种蜘蛛及5目8科13种昆虫,在自然状态下天敌对梨喀木虱控制作用明显;不科学的化学防治是造成梨喀木虱危害加重的主要原因;用1 0%爱诺虫清3000倍液、20%梨虱霸乳油2000倍液、5%蚜虱净乳油1500倍液防治梨喀木虱效果都在95%以上,1 0%爱诺虫清是生物药剂,更宜推广。
Cacopsylia chinensis occur 6～7 generation in each year and live through the winter by imago in crack of tree stem, weeds and fallenleaves, it severely damaged pear (Zhaosu) At present, its natural enemies such as various kinds of spiders and insects of 5 orders, 8 families, 13 speciesUnder natural conditions the control effect of natural enemies on Cacopsylla chinensis is obvious; nonscientific chemical control measures are main reasons caused serious damages of Cacopsylla chinensis The control effects of 10% with concentration of 3 000, 20% Lishiba with concentration of 2 000, 5% Imidacloprid with concentration 1 500 on Cacopsylla chinensis are all over 95% And the 10% Avermectins is easy popularization because it is a kind of biological medicament
出处
《甘肃林业科技》
2003年第3期14-17,35,共5页
Journal of Gansu Forestry Science and Technology
关键词
梨
喀木虱
发生规律
防治技术
Cacopsylla chinensi
occurrence law
control
