Study on the predation behavior of Coccinella septempunctata on Chromaphis juglandicola
This study investigated the predation behavior of Coccinella septempunctata on Chromaphis juglandicola,the daily predation amount of Coccinella septempunctata on Chromaphis juglandicola was observed under different temperature conditions in a light incubator,and the predation behavior was observed using a stereomicroscope.Within the tempreture range of 15-35 ℃,the daily predation of Coccinella.septempunctata on Chromaphis juglandicola increased as the temperature rose,and the highest daily predation amount was recorded at 35 ℃,reaching 382.38 individuals,while the lowest at 15 ℃,with 163.75 individuals.The predation behavior of Coccinella septempunctata on Chromaphis juglandicola was mainly of the active search type.Its predation behaviors included searching,catching,chewing,grooming,resting,wing spreading,and excretion.The frequency of searching and grooming behaviors of Coccinella septempunctata was higher within 0-4 hours after a 24-hour starvation treatment,and the frequency of wing spreading behaviors was most active within 4-8 hours.These results could form a theoretical basis for the rational use of the natural enemy,Coccinella septempunctata,in controling Chromaphis juglandicola.
Coccinella septempunctataChromaphis juglandicolatemperaturepredationbiological control
NETL
NSTL
万方数据
