Effects of plant trichomes on herbivores and predators on soybeans

• Published in: Insect science Vol. 17; no. 5; pp. 406 - 413
• Main Authors: Dai, Hongjun, Wang, Yi, Du, Yuzhou, Ding, Jianqing
• Format: Journal Article
• Language: English
• Published: Melbourne, Australia Blackwell Publishing Asia 01.10.2010
• Subjects: Abundance; Aphididae; Aphis; biological control; Glycine; Glycine max; Herbivores; Natural enemies; Orius; Population dynamics; Predators; Propylaea japonica; Soybeans; trichome; Trichomes; tritrophic interactions; 动物皮毛; 大豆蚜虫; 正面影响; 相互作用; 种群动态; 草食动物
• ISSN: 1672-9609; 1744-7917
• DOI: 10.1111/j.1744-7917.2009.01305.x

Tritrophic interaction in soybean system has received increasing attention recently. However, few studies have investigated the influence of plant trichomes on the population dynamics of soybean herbivores and their natural enemies. We conducted a field survey to investigate whether soybean trichomes affected the abundance of herbivores and their predators. The results of this study show that moderately or densely pubescent trichomes have positive influences on the abundance of some herbivores (e.g., Stollia guttiger) and predators (e.g., Propylaea japonica and Orius similes) although the influence may change over time, while trichome types do not affect the density of soybean aphid, Aphis glycines.