. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fig. 257.âThe Clover Mite. Enlarged to fifteen times natural size. Fig. 2oS. â Eggs of the Clover Mite on bark. Enlarged to ten times natural size. Orig- inal. The Cotton Boll Weevil (Anihonomu-s grandis Boh.) Xo pest of recent years has wrought greater damage than tliis in- vader from Mexico. It is now distributed throughout the greater part of the cotton-growing regions. Both the squares and the boUs are attacked, their substance eaten out, and their contents so damaged that they die or fail to p
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fig. 257.âThe Clover Mite. Enlarged to fifteen times natural size. Fig. 2oS. â Eggs of the Clover Mite on bark. Enlarged to ten times natural size. Orig- inal. The Cotton Boll Weevil (Anihonomu-s grandis Boh.) Xo pest of recent years has wrought greater damage than tliis in- vader from Mexico. It is now distributed throughout the greater part of the cotton-growing regions. Both the squares and the boUs are attacked, their substance eaten out, and their contents so damaged that they die or fail to produce fiber. The injury is wrought both by the adults in their feechng and egg-laj-ing punctures, and by the grubs which hatch from the eggs laid within the boUs or scjuares. The adult boll wee\-il is a small snout beetle, one fourth of an inch long. It is brownish in color through most of its existence, but lighter when newly emerged and darker after it has been out for two or three weeks. The grub, found only witliin the sciuares or boUs. is wliitish, hea^â ^â bodied, and has a dark head. It has no 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
