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The black fly of citrus and other subtropical plants . Fig. I.—Infested Lime Leaves Taken from Trees Shown in Figure 2,in May, 1919. Compare with Plate II, Figure Fig. 2—The Same Trees Shown in Plate II, Figure 2, Photographed inApril, 1919, Shortly After the Beginning of the Rainy Season. Note the vigorous BLACK FLY. Bui. 885, U. S. Dept. of Agriculture. PLATE IV. 1
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Keywords: ., bookcentury1900, bookdecade1920, bookidblackflyofci, bookyear1920