. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Bui. 536, U. S. Dept. of Agriculture. Plate Host Fruits of the Mediterranean Fruit Fly. Fig. 1.— Carissa arduina. Typical of a class of fruits which are protected from infestation until they are practically ripe by a copious flow of white sticky sap from punctures in the skin made by the adult fly. Note this dried white sap covering punctures on fruits. Fig. 2.—Bartlett pear (Pyrus sp.). Fruit-fly larvae may eat out the entire center of a pear and yet the fruit may remain attached to the tree and shrivel up after
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Bui. 536, U. S. Dept. of Agriculture. Plate Host Fruits of the Mediterranean Fruit Fly. Fig. 1.— Carissa arduina. Typical of a class of fruits which are protected from infestation until they are practically ripe by a copious flow of white sticky sap from punctures in the skin made by the adult fly. Note this dried white sap covering punctures on fruits. Fig. 2.—Bartlett pear (Pyrus sp.). Fruit-fly larvae may eat out the entire center of a pear and yet the fruit may remain attached to the tree and shrivel up after the larva3 have fallen to the ground. (Original.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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