云南农业大学学报2009，Vol.24Issue(3)：354-360,7.
马铃薯块茎蛾的产卵特性
Characterization of Oviposition of Potato Tuber Moth Phthorimaea operculella (Lepidopterra: Gelechiidae) in Potato
摘要
Abstract
The characteristics of oviposition of potato tuber moth (PTM), Phthorimaea operculella(Zeller) on potato (Solanum tuberosum L.) foliage and tubers was investigated in a series of laboratory experiments. A specially designed two-choice olfactometer that joined to air filter with activated charcoal was utilized in judging the preference of insects between two materials. The results as follows: (1) PTM adults laid significantly more eggs on the leaves of potato than on those of cabbage (Brassica oleracea var. capitata), tomato (Lycopersicon esculentum) or capsicum (Capsicum annuum), however, no such difference was found between the leaves of potato and eggplant (Solanum melongena). (2)Insect laid significantly more eggs on potato tubers than on eggplant fruit or sweet potato tuberous roots, but there was no such difference between potato tubers and fruits of tomato or capsicum. (3) Neither boiling, nor autoclaving could destroy the attraction of potato tubers for oviposition. De-skinning of boiled potato tubers also did not affect the attraction of such tubers for egg laying. (4) Removal of entire skin or only sprouts from potato tubers significantly reduced oviposition of PTM on such tubers, compared with normal tubers. (5) There was no difference of egg-laying preference of PTM among light yellow-, red-, and purple skinned tubers. (6) PTM adults laid significantly more eggs on the filter paper coated with hexane extract of potato tubers than on that coated only with hexane solvent. Similar extraction procedure with potato foliage failed to extract any chemicals attracting voiposition. We conclude that certain chemicals were constantly released into the environment by potato tubers, which attracted PTM adults for laying eggs on potato tubers in storage. Further characterization of these chemicals is underway.关键词
马铃薯块茎蛾/马铃薯/茄子/番茄/辣椒/产卵Key words
Phthorimaea operculella/Solanum tuberosum/Solanum melongena/Lycopersicon esculentum/Capsicum annuum/oviposition分类
植物保护学引用本文复制引用
孙红艳,Narayan S.Talekar,李正跃..马铃薯块茎蛾的产卵特性[J].云南农业大学学报,2009,24(3):354-360,7.基金项目
国际马铃薯中心(CIP)合作课题 （CIP）
云南省科技重点公关项目(2100NG57) （2100NG57）
云南省科技厅项目(2003C0017Q) We thank professor Min Ye for sharing his rotary vacuum evaporator with us,professor Chun Xiao for providing his PTM adults when we were short for them. （2003C0017Q）
