Buckelew L D, Pedigo L P, Mero H M, Owen M D, Tylka G L
Department of Entomology, Iowa State University, Ames 50011, USA.
J Econ Entomol. 2000 Oct;93(5):1437-43. doi: 10.1603/0022-0493-93.5.1437.
The effects of transgenic herbicide-resistant soybean varieties and their corresponding weed management strategies on canopy insects were examined in studies at two locations in Iowa in 1997 and 1998. Weed management systems that allowed more weed escapes typically had higher insect population densities. However, systems with fewer weeds seemingly were preferred by potato leafhoppers. Bean leaf beetles and potato leafhoppers showed preferences for certain soybean varieties, but these effects were attributed to soybean plant height. These findings indicate that although the transgenic soybean varieties did not strongly affect insect populations, weed management systems can affect insect populations in soybean. However, this impact is likely related more to weed suppression effectiveness than to a direct effect of the herbicides on the insects.
1997年和1998年在爱荷华州的两个地点进行的研究中，考察了转基因抗除草剂大豆品种及其相应的杂草管理策略对冠层昆虫的影响。允许更多杂草逃逸的杂草管理系统通常具有更高的昆虫种群密度。然而，杂草较少的系统似乎更受马铃薯叶蝉青睐。菜豆叶甲和马铃薯叶蝉对某些大豆品种表现出偏好，但这些影响归因于大豆植株高度。这些发现表明，虽然转基因大豆品种对昆虫种群没有强烈影响，但杂草管理系统可以影响大豆中的昆虫种群。然而，这种影响可能更多地与杂草抑制效果有关，而不是除草剂对昆虫的直接影响。
