|
Hangzhou West Lake District of origin of the tea West Lake Longjing tea pests often made retransmission . In recent years, a variety of pests of Empoasca cicadas spiniferus , tea looper and tea orange gall mites continuous outbreaks caused by tea cut , quality deterioration , decline in output , and serious economic losses . , Carried out research and demonstration and extension of the system of prevention and control of major pests green . Its main tasks are : (1) to explore Empoasca cicadas green prevention and control technology , integrated natural pyrethrum , silicone , plain plate and picking pruning measures coordinate control Empoasca cicadas , and demonstration and extension in the tea-growing areas , effectively restricting the the leafhopper occurrence . (2 ) in the the overwintering generation spiniferus emergence peak at the end of March to early April , the use of plain board Trapping adult can control its population density in the low-density state throughout the year . (3) demonstration and extension still in the tea-growing areas of green against other major pest prevention and control technology , tea inchworm , tea Li-wen as a tea Orange Eriophyes , to good effect . ( 4 ) the formation of the West Lake Longjing tea area pest green prevention and control technology , the establishment of demonstration bases to promote the use of : ① to improve the tea garden environment , play a tea garden community natural ability to regulate and control ; ( 2 ) adhere to the agricultural control ; ( 3 ) vigorously develop biological control , protection and the use of natural enemies ; ( 4 ) and actively carry out the physical control : ⑤ reasonable chemical control , really good green pest prevention and control ; ⑥ do the promotion of green prevention and control technology system , to ensure the base construction . Demonstration and extension through the base in order to obtain a a good continuous control effect . The green control system has the general promotion of the West Lake tea , the effect is significant .
|