. Injurious insects : how to recognize and control them . Insect pests; Insect pests. F:g. 174. â The Alfalfa Loaf-^vc^â ^â il. En- larged aud natural size. Tic. 17o.âPupa of the Alfalfa Leaf-weevil. Enlarged and natural size. Original. The adult is one eighth to tlu'ce sixteenths of an inch long, and when freshly emerged is broT\'n. It grows darker in a few days. Its body is covered with black and gray hairs, gi^'ing it a mottled appearance. The grub is one fourth inch long, tapering toward each extremity, and has a light stripe down its back. Remedial measures thus far devised in
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. F:g. 174. â The Alfalfa Loaf-^vc^â ^â il. En- larged aud natural size. Tic. 17o.âPupa of the Alfalfa Leaf-weevil. Enlarged and natural size. Original. The adult is one eighth to tlu'ce sixteenths of an inch long, and when freshly emerged is broT\'n. It grows darker in a few days. Its body is covered with black and gray hairs, gi^'ing it a mottled appearance. The grub is one fourth inch long, tapering toward each extremity, and has a light stripe down its back. Remedial measures thus far devised include : thorough disking early in the spring so as to induce quick, vigorous groTMh of the plants; the use of a spike-tooth Fig. 176. â Egg puneture harrow combined with a â f''^'- ^''- Feed- qnd work- nf flip \lfalfa i i i ⢠i- i irig punctures of .-iaa -nork ol tne .Alalia i^j-ugj-^ ^.j^ mimediate V ., " .,, ,, , , ^ ⢠the .Alfalfa Leaf- foUowing the first cutting wee^-il. 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 O'Kane, Walter Collins, b. 1877. New York : The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
