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The correlations of the different host plants with preference level, life duration and survival rate of Spodoptera litura Fabricius

QIN Hou-Guo, YE Zheng-Xiang, HUANG Shui-Jin, DING Jian, LUO Ren-Hua(Institute of Plant Protection, Jiangxi Academy of Agricultural Sciences, Nanchang 330300)  
The correlations of the different host plants with preference level, life duration and survival rate of S. litura Fabricius show that the most preference plants of S. litura Fabricius are Ver. cormosus, Nelumbo nucifera, Brassica oleracea, Brassica chinensis, Ipomoea aquatica, Brassica compestris, Gossypium hirsutum, Glycine max, Raphanus sativus, Vigna sesquipedalis, Basella alba, respectively. The preference plants are Arachis hypogaea, Sesamum indicum, Polygonum lapathifolium, Marsilea quadrifolia, Ipomoea batatas, Phaseolus radicalum, Cucumis sativus, respectively. The secondary host plant are others. There are significant differences among the duration of larvae, weight of pupa and emerging rate when the larvae are fed on the different host plants. The duration of larvae is shorter, the pupae are weighter and the emerging rate is higher when the larvae are fed on Colocasia esculenta, Ipomoea aquatica, Brassica chinensis, Brassica oleralea, Vigna sesquipedalis, Nelumbo nucifera, etc. The duration of larvae is longer, the pupae are smaller and the emerging rate is lower when the larvae are fed on Gossypium hirsutum, Glycine max, and Helianthus annuus.
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