. The Alfalfa gall midge : (Asphondylia miki Wachtl.). Alfalfa Diseases and pests; Gall midges; Agricultural pests. THE ALFALFA GALL MIDGE. described in 1880 from the vicinity of Vienna, Austria, where the species appears to affect alfalfa in precisely the same way as in Arizona and New Mexico. THE ADULT MIDGE. This midge belongs with a group of flies which in- cludes the wheat midge (C ontarinia tritici Kirby), the clover midge (Dasy- neura leguminicola Lintn.) ? and the sorghum midge {C ontarinia sorghicola Coq.). The insects are very small and obscurely colored, so that the farmer will hard
. The Alfalfa gall midge : (Asphondylia miki Wachtl.). Alfalfa Diseases and pests; Gall midges; Agricultural pests. THE ALFALFA GALL MIDGE. described in 1880 from the vicinity of Vienna, Austria, where the species appears to affect alfalfa in precisely the same way as in Arizona and New Mexico. THE ADULT MIDGE. This midge belongs with a group of flies which in- cludes the wheat midge (C ontarinia tritici Kirby), the clover midge (Dasy- neura leguminicola Lintn.) ? and the sorghum midge {C ontarinia sorghicola Coq.). The insects are very small and obscurely colored, so that the farmer will hardly be likely to observe them. He will, however, have no difficulty in detecting the galled seed pods. During the last year or two a number of complaints have been re- ceived from the Southwest relative to the failure of alfalfa seed to develop. This has been attributed by farmers to a number of insects, none of which is at all likely to be responsible for the injury, while it is quite possible that it may be due to this gall midge. THE PUPA. The pupa is shown in figure 5. The dor- sum, or back, is illustrated in figure 5, a. which shows the spines that enable it to work its way through the walls of the galled pod, as described in the preceding translation. HABITS OF THE Fig. 4.—The alfalfa gall midge : Adult female, with antenna of male above, at left. Greatly enlarged. (Original, i. 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 Webster, F. M. (Francis Marion), 1849-1916; United States. Bureau of Entomology; United States. Dept. of Agriculture. Washington, D. C. : U. S. Dept. of Agriculture, Bureau of Entomology
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1910, bookyear1912
