Population dynamics of soybean aphid Aphis glycines and its natural enemies in fields
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Systematic survey and analysis in the fields showed that the peak damage period of Aphis glycines was the blooming stage of soybean. The density of soybean aphid reached 18815 per 100 plants and the dwarf rate of soybean plants was 20%. There were 15 species of main natural enemies. The density of natural enemies was 431 per 100 plants during peak period, the dominant natural enemies had 5 species, Propyloea japonica, Sphoerophoria sp., Erigonidium gramincola, Diaeretiella rapae, and Scymnus hoffmanni. The population dynamic curve of natural enemies resembled to that of Aphis glycines, but was delayed by 5-7 d.
Originating text in Chinese.
Citation: Han, Xincai. (1997). Population dynamics of soybean aphid Aphis glycines and its natural enemies in fields. Hubei Agricultural Sciences, 2, 22-39.
Originating text in Chinese.
Citation: Han, Xincai. (1997). Population dynamics of soybean aphid Aphis glycines and its natural enemies in fields. Hubei Agricultural Sciences, 2, 22-39.
Keywords
Aphis glycines, Soybean, Natural enemy, Population dynamics
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