花椒瘿蚊生物学特性及种群动态研究*

 通过对花椒瘿蚊生物学特性的观察及种群发生动态的调查,明确了花椒瘿蚊1年发生1代,幼虫危害花椒枝条的嫩梢皮层及木质部形成虫瘿,并以幼虫在当年生枝条虫瘿内越冬,成虫喜阴暗潮湿,产卵具有趋嫩性等习性;建立了花椒瘿蚊种群消长动态图及成虫的日活动规律图,从图中可以看出卵、幼虫、蛹及成虫的发生盛期分别为6月中旬至7月上旬、9月中旬至翌年4月、5月中下旬、6月上中旬,且成虫在上午8∶00~10∶00活动数量最多。

Study on Biological Features and Population Dynamics of Asphondylia zathoyli

The observations of biological features and the investigations of population dynamics of Asphondylia zathoyli were studied. The results showed that the pest occurred one generation every year. Larvae damaged cortex or xylem of twigs of Chinese prickly ash trees, leading to gall. They could overwinter as larvae in the gall. Adults activated in shade and wet place and laid eggs in twigs. The figures of population dynamics of the pest, the figures of the daily activities of the adults were all built. The figures demonstrated that eggs, larvae,pupae and adults’ fastigium appeared from the middle of June to the first ten days of July, from the middle of November to April in next year, in the middle and last ten days of May, in the first ten days and middle of June respectively. Most of the adults activated in the morning between 8∶00 am~10∶00 am.