In order to find out the occurrence quantity and activity trend of main predatory natural enemies and provide reference for integrated pest control in tea plantation.In this study,the occurrence dynamics of main predatory natural enemies in tea plantations in Xinyang were mainly monitored by using common yellow boards and natural enemy friendly yellow boards.A total of 2100 yellow boards were collected from 35 surveys during the period from March to November.The results showed that there were 3 peak periods during the growth and development of ladybug in tea plantation,which were Mid-march to late April,mid-june to late July,late September to late October.There are overlapping peak periods on the two kinds of yellow board,and the peak periods are slightly earlier or later with the change of geographical position.The chrysopa perla has 3 peak periods,which are mid-late March,late June,mid-october to early November.There were 4 peak periods of spider in tea plantation,which were in mid-late April,mid-late May,mid-june,mid-september to mid-october,and after November.The protection effect of two kinds of yellow boards with friendly natural enemies was better than that of common ones,and the number of trapping natural enemies was generally lower than that of common ones.By monitoring the occurrence dynamics of predatory natural enemies in tea plantation,the basic data were provided for making the strategy of utilizing natural enemies in tea plantation.
国家科技期刊平台
NSTL
万方数据
