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- 저자 : Ma Ruiyan (검색결과 2 건)
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Guo Yongfu,Wang Yi,Chai Xiaohan,Xiang Huiming,Kong Weina,Ma Ruiyan 한국곤충학회 2022 Entomological Research Vol.52 No.9
Grapholita molesta (Busck) is a cosmopolitan fruit pest. The sex pheromones released by females have four components, namely (Z)-8-dodecenyl acetate (Z8–12:Ac), E8–12:Ac, (Z)-8-dodecen-1-ol (Z8–12:OH), and dodecanol (12:OH). This multichemical attractive system has been reported to induce various male behavioral responses, from arousal to directional flight, and enhance trapping. However, the specific male behaviors induced by individual component or component blend is unclear. This study investigated the effects of different combinations of these four components using electroantennogram, wind tunnel assays, and field tests on aspects of male behavioral performance. Our results showed that the (Z8–12:Ac + E8–12:Ac)- containing pheromones were mainly responsible for long-distance detection and close-distance location in males, including antennal detection of the stimulus, flight initiation, directional flight, and trapping. The addition of E8–12:Ac to Z8–12:Ac plays an important role in pheromone searching behavior of males in close range. The ternary component, Z8–12:Ac + E8–12: Ac + Z8–12:OH was crucial for capturing male moths, and 12:OH significantly increased the male catch. The addition of Z8–12:OH and 12:OH to Z8–12: Ac + E8–12:Ac plays an important role in completing the whole response sequence in field attraction. This study revealed that Z8–12:Ac + E8–12:Ac acts as a attractant to males, whereas Z8–12:OH, and 12:OH are the synergists that enhance male attraction in the sex pheromone blend.
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Feng Dandan,Xue Qiqi,Men Lina,Li Xiaofei,Deng Angie,Zhang Yuhong,Ma Ruiyan,Zhang Zhiwei 한국응용곤충학회 2020 Journal of Asia-Pacific Entomology Vol.23 No.4
Carposina sasakii Matsumura (Lepidoptera: Carposinidae), is one of the most serious fruit-boring pests in over ten species of fruit trees, and is especially damaging apples in the northern of China. The application of new planting systems, i.e., high-density and dwarfing rootstock orchard systems with mixed apple varieties, makes it im portant to study the fitness of C. sasakii on these apple varieties to gain fundamental knowledge for use in pest management involving this insect. In this study, life table data of C. sasakii were collected using Golden Delicious and Red Fuji apples as hosts. The egg-larva duration of male C. sasakii reared on Golden Delicious apples (22.81 d) was significantly shorter than that reared on Red Fuji apples (24.27 d). The egg-larva mortality in Golden Delicious apples (59.00%) was lower than that in Red Fuji apples (72.49%). The mortality of the pupal stage, however, was higher in Golden Delicious (10.51%) than in Red Fuji (0%). The total oviposition period (TPOP) on Golden Delicious apples (32.94 d) was significantly shorter than in individuals reared on Red Fuji apples (34.19 d). The intrinsic rate of increase (r = 0.0581 d −1 ), net reproductive rate (R 0 = 7.57 offspring), and finite rate of increase (λ = 1.0598 d −1 ) were all higher on Golden Delicious than those on Red Fuji. When the net re productive rate (R 0 ) was used, the harvest rate of pupae was higher (0.8678) when reared on Golden Delicious apples than when reared on Red Fuji apples (0.8398). When a large cohort size (n = 200) was used for effective bootstrap sample, the P E values for C. sasakii reared on Golden Delicious apples and Red Fuji apples were both almost equal to 1. For C. sasakii culturing purposes, Golden Delicious apples would be more productive than Red Fuji.
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