HOST-PLANT SELECTION BY SCHISTOCERCA-AMERICANA (ORTHOPTERA, ACRIDIDAE)

被引：22

作者：

CAPINERA, JL

机构：

[1] Dept. of Entomology & Nematology, Univ. of Florida, Gainesville

来源：

ENVIRONMENTAL ENTOMOLOGY | 1993年 / 22卷 / 01期

关键词：

AMERICAN GRASSHOPPER; HOST PREFERENCE; SCHISTOCERCA;

D O I：

10.1093/ee/22.1.127

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

The preference of Schistocerca americana (Drury) for 40 potential host plants relative to bahiagrass, Paspalum notatum, was determined in two-choice and four-choice tests. Although highly polyphagous, S. americana demonstrated clear preference and nonpreference for certain species. Host selection by small nymphs (instars 3 and 4), large nymphs (instars 5 and 6), and adults was highly correlated. Host selection by spring-generation grasshoppers was highly correlated with summer-generation host preference. The presence of alternate hosts, especially nonpreferred species, resulted in modified host-selection behavior wherein grasshoppers were more discriminating in four-choice tests than two-choice tests.

引用

页码：127 / 133

页数：7

共 18 条

[11] DECLINING ACCEPTABILITY OF A FOOD PLANT FOR THE POLYPHAGOUS GRASSHOPPER SCHISTOCERCA-AMERICANA - THE ROLE OF FOOD AVERSION LEARNING [J].