Contributions of visual cues to cabbage seedpod weevil, Ceutorhynchus obstrictus (Marsham) (Coleoptera: Curculionidae), resistance in novel host genotypes

被引：14
作者：
Tansey, J. A. [1 ]
Dosdall, L. M. [1 ]
Keddie, B. A. [2 ]
Noble, S. D. [3 ]
机构：
[1] Univ Alberta, Dept Agr Food & Nutr Sci, Agr Forestry Ctr 4 10, Edmonton, AB T6G 2P5, Canada
[2] Univ Alberta, Dept Biol Sci, CW Biol Sci Ctr 405, Edmonton, AB T6G 2E9, Canada
[3] Univ Saskatchewan, Dept Agr & Bioresource Engn, Saskatoon, SK S7N 5A9, Canada
来源：
CROP PROTECTION | 2010年 / 29卷 / 05期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Canola; Sinapis; Brassica; Insect visual responses; Apparency; CANOLA; CAPTURE;
D O I：
10.1016/j.cropro.2009.11.005
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Herbivorous insects can demonstrate great selectivity among visual cues. The cabbage seedpod weevil, Ceutorhynchus obstrictus (Marsham) (Coleoptera: Curculionidae) (syn. Ceutorhynchus assimilis (Paykull)) is also influenced by visual cues. Here, we present results of a study examining the attractiveness of flowers and foliage of Sinapis alba (a suboptimal host for larval development), Brassica napus (an excellent host for larval development) and novel lines derived from S. alba x B. napus; several of these have been demonstrated to be resistant in field and laboratory tests. Attractiveness, reflectance properties and resistance demonstrated in field trials were related. Responses to host plants differed among plant genotypes and were related to the amounts of UV and yellow reflected from flowers. Moderate UV reflectance greatly increased the attractive effects of yellow. Fewer weevils responded to test plants with greater or lesser floral UV reflectance. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：476 / 481
页数：6
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