|Table of Contents|

Spatial Distribution Pattern of Pear Psylla and  Its Natural Enemy Lacewing Fly

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年11
Page:
55-60
Research Field:
Publishing date:

Info

Title:
Spatial Distribution Pattern of Pear Psylla and  Its Natural Enemy Lacewing Fly
Author(s):
ZHAO Longlong; ZHOU Xuling; ZHANG Weizhong; LI Qingliang; HU Zengli; GUO Huangping
(Institute of Pomology,Shanxi Academy of Agricultural Sciences,Taigu,Shanxi 030815)
Keywords:
pear psylla; lacewing fly; spatial distribution; biological control
PACS:
-
DOI:
10.11937/bfyy.20173999
Abstract:
In order to control the main pest Psylla chinensis and use the natural enemy in pear orchard,the spatial distribution of pear psylla and its main predator′s lacewing fly in pear tree and orchard were explored.In the purpose of providing reference basis for prevention and control of pear psylla,the spatial distribution characteristics of pear psylla and lacewing fly in pear orchard were studied by comparing the distribution characteristics on pear trees and 6 spatial distributions.The results showed that the pear psylla mainly distributed in the lower crown of pear tree,no significant differences were found in the four directions,the pear psylla number was significantly correlated with the density of the pear leaves,pear psylla population were aggregated distribution in pear orchard,and aggregation was depended on the aggregation nature of the insect.The lacewing fly mainly distributed in the lower crown and southeastward of pear tree,significant correlation with the pear psylla only was found in the upper crown,lacewing fly mainly exhibited aggregated distribution in pear orchard.

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Last Update: 2018-06-25