 | Tetranychus urticae. | (1) |
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 | Free genetic variability in the two-spotted spider mite Tetranychus urticae K. (Acarina: Tetranychidae) / William D. McEnroe. McEnroe, William D. 4n Waltham, Mass : Dept. of Environmental Sciences, University of Massachusetts, Waltham Field Station, . | |
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