茶翅蝽和黄斑蝽生物学特性研究

A Study on the Biological Characteristics of Halyomorpha picus and Erthesina fullo

经1989～1991年研究表明:在冀中南地区,茶翅蝽每年发生1～2代,黄斑蝽为1代。两者均在4月上旬～6月中旬出蛰,在8月下旬～10月下旬开始越冬。越冬代成虫平均寿命,茶翅蝽为301d,黄斑蝽328.5d,茶翅蝽第一代为31.65d。两种蝽象的主要寄主为泡桐、梨、桃、苹果和杨等。在同一时期不同寄主或不同时期同一寄主上的种群数量差别很大。成虫扩散距离,茶翅蝽2km、黄斑蝽3km。同时还研究了蝽象的产卵量、生活史、危害习性和寄生天敌等,针对这些生物学特性,提出了“综合措施、联合行动”的新防治策略,并取得了显著防治效果。

The biological characteristics of Halyomorpha picus Fabricius and Erthesina fullo Thunberg were studied systematically from 1989 to 1991. The results show that in the central and southern part of Hebei Province, H. picus has 1~2 generations and E. fullo only 1 generation a year. Both of the stinkbugs are awaken from the early ten days of April to the middle ten days of June and began to overwinter from the late ten days of August to the late ten days of October. The average life span of the overwintered adult of H. picus is 301 days, that of E. fullo is 328.5 days and the first generation of H. picus 31.6 days. The hosts of the two stinkbugs are Paul-ownia spp., Pyrus bretschneideri Rchd., Prunus persica (L.) Batsch, Malus pumila Mill and Populus spp. etc. There is a great difference in population density in the same period with different hosts or in the same host with different period. As for the dispersal distance, H. picus can fly 2 km and E. Julio 3 km. And the amount of oviposition, life cycle, damage habit and natural parasitic insects, etc. were also studied. Based on the biological characteristics, new control method and integrated management were suggested.