American Journal of Botany, Vol. 3, No. 7 (Jul., 1916), pp. 337-360 (26 pages) 1. The Phylloxera vastatrix leaf gall starts to develop on embryonic bud leaves. In twenty-four hours the insect produces ...
One promising approach has been to simply sprinkle water on raspberry leaves to disrupt and reduce spider mite populations. The two-spotted spider mite (Tetranychus urticae) is a small arachnid ...
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