The black fly of citrus and other subtropical plants . <! Fig. 2.—Young Lime Trees Moderately Infested that were Kept UnderDaily Observation for Over a Year. Photographed in October, 1918. THE BLACK FLY. Bui. 885, U. S. Dept. of Agriculture. PLATE Fig. I.—Infested Lime Leaves Taken from Trees Shown in Figure 2,in May, 1919. Compare with Plate II, Figure I.

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Keywords: ., bookcentury1900, bookdecade1920, bookidblackflyofci, bookyear1920