Abstract:
A detailed research on occurrence character and control technology of Psylla chinensis in bagging pear orchard was carried out.The result showed that the beginning,blooming and last stage for the P.chinensis into bags were separately at the middle of May,early June and from middle August to middle September;Campared to the aoked fruits,the intrusion time was 10-19 d earlier;the population was 13 times higher;the Psylla chinensis become one of the most important fruits pest from a leaf pest.the P.chinensis increased indirect damages to the pear fruit,and the symptoms were changed observably.Suitable prevention time and controlling measure were proposed on physics,agriculture,chemistry.
Key words:
Psylla chinensis,
Occurrence character,
Prevention time of suitable,
Control technology
CLC Number:
WANG Jing-tao, SUN Li-yi, YU Li-guo, LIU Tie-zheng, LI Rui-ping, YAN Xin-min, CHEN Jiang-yu. Research on the Occurrence Character and Control Technology of Psylla Chinensis in Bagging Pear Orchard[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(S2): 243-246. doi: 10.7668/hbnxb.2007.S2.057.