. Southern field crops (exclusive of forage plants). Agriculture. COTTON INSECTS 407 Cotton stalks should not be burned except where this course is recommended as a necessity in fighting the cotton boll-weevil. Then extra pains must be taken to compen- sate for the loss by introducing into the rotation at short intervals some humus-forming crop. Insects of Minob Importance 375. The cowpea-pod weevil {Chalcodermis mneus). — This is a small black beetle or weevil, with a long snout and marked with numerous tiny pits, or depressions (Fig. 179). It injures the young plants, espe- cially the growin
. Southern field crops (exclusive of forage plants). Agriculture. COTTON INSECTS 407 Cotton stalks should not be burned except where this course is recommended as a necessity in fighting the cotton boll-weevil. Then extra pains must be taken to compen- sate for the loss by introducing into the rotation at short intervals some humus-forming crop. Insects of Minob Importance 375. The cowpea-pod weevil {Chalcodermis mneus). — This is a small black beetle or weevil, with a long snout and marked with numerous tiny pits, or depressions (Fig. 179). It injures the young plants, espe- cially the growing ter- minal buds and the young stems. As the plant grows larger this insect ceases to attack cotton. This is the insect most frequently mis- taken for the boll- weevil. Conspicuous differences exist in the shiny, black _ color and pitted appearance of the cowpea-pod weevil, in contrast with the brownish or grayish appearance of the boll-weevil, which is not conspicuously pitted. Injury to cotton by the cowpea-pod weevil usually starts in areas where the previous crop was cowpeas. Hence, in some localities where this pest is a serious one, it may be desirable to change the rotation that is generally. Fig. 179.—Cowpea-pod 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 Duggar, J. F. (John Frederick), 1868-. New York, The Macmillan company
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