Olfactory response in caterpillars of Pieris rapae for host recognition
作者： Tomas Schön
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摘要: Plants interact with phytophagus insects through release of volatile chemical compounds. They can either function as a defense against herbivores by attracting predators and parasitoids, or they act an attractant for the themselves. This knowledge is important could be applied in agricultural science to develop novel strategies pest control. The plant-insect interaction was studied using three genotypes Brassicaceae family small cabbage butterfly, Pieris rapae. experiment conducted placing larvae four-way olfactometer see what potential feeding preferences it showed when choosing between odor 1) 2) different treatments on each genotypes. tested were; undamaged plant, plants induced damage, frass air control choice. One treatment made plant prediction that would show i) damaged since volatiles from these are more abundant plants, ii) frass, this emit nitriles which acts insects. result however no significant preference genotype treatment, except cauliflower where seem prefer over A number released exclusively occur at higher concentration headspace than other makes blend unique most likely attracts it.
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