. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. LEGUMINOUS CROPS. 31 The Trefoil Weevil (Apion flavipes, Tig. 11) belongs to a large family {ApionidcB) of small beetles. Many of tbem do not exceed one-eigbtb or one-twelfth of an inch, in length. They are wingless, but possess well- developed wing-cases (elytra). Both the head and thorax are comparatively small and narrow. The former is pro- longed into a rostrum (snout) of considerable length. The antennae form lateral appendages to the rostrum (Fig. 11B).. Fig. 11.—TsEroii
. The diseases of crops and their remedies : a handbook of economic biology for farmers and students. Plant diseases. LEGUMINOUS CROPS. 31 The Trefoil Weevil (Apion flavipes, Tig. 11) belongs to a large family {ApionidcB) of small beetles. Many of tbem do not exceed one-eigbtb or one-twelfth of an inch, in length. They are wingless, but possess well- developed wing-cases (elytra). Both the head and thorax are comparatively small and narrow. The former is pro- longed into a rostrum (snout) of considerable length. The antennae form lateral appendages to the rostrum (Fig. 11B).. Fig. 11.—TsEroii Weevil {Apion flavipes). A. Larvae of A^itm feeding on trefoil. B. The beetle (enlarged). The wing-cases are of various hues (green, blue, black, or red). The larvse (Pig. 11 A) of Apion flavipes feed on and are very destructive of trefoil. The perfect insect (imago) is black, with red legs. Prevention.—Liberal manuring and the use of soot and lime tend to lessen the attacks of this insect. The Trefoil Moth {Zygcsna trifolii). "This moth flies about in the day-time, and has deep metallic green or. 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 Griffiths, A. B. (Arthur Bower), 1859-. London : G. Bell
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Keywords: ., bookauthorgriffith, bookcentury1800, bookdecade1890, bookyear1890
