摘要
本文应用Hassell—Varley模型和Holling功能反应模型对斯氏线虫与黄曲条跳甲三龄幼虫的关系进行了投合,得到在48h内,每百条线虫可感染1.4头寄主,线虫间干扰作用为0.2738;每2500条线虫对寄主的瞬时发现率为0.5,在最适宜的条件下,最多可感染72头寄主。线虫对不同龄期的黄曲条跳甲幼虫感染,结果表明,随寄主龄期的增加而感染率增加。
In this paper, the relationship between the nematode, Steinernema fetine(Fillpjev) Agriotos strain and 3rd -instar larvae of the striped flea beetle, Pkyllotreta striolats(Fabr. ), was simulated with Hassell-varley model and Holling' s functional response model. It showed that during 48 hours the maximum number of hosts that the nematodes could parasite was 72 3rd-instar larvae under the most suitable condition ; the interference constant of the nematodes was 0. 2738. The results of host age susceptibility tests showed that susceptibility to the nematodes increased with age of the host.
出处
《华南农业大学学报》
CAS
CSCD
1992年第1期26-29,共4页
Journal of South China Agricultural University
关键词
斯氏线虫
黄曲条跳甲
天敌
Steinernema feltioe
Phyllotreta atridata
