Report on the Rocky Mountain locust and other insects now injuring or likely to injure field and garden crops in the western states and territories . tching it becomes fully grown, beingabout an inch long, and bright-yellow in color, the body being coveredwith large, black dots. The chrys-alis is shining reddish-brown, abouthalf an inch long, and may be fouudlate in June, either upon theground or just under the two weeks after entering thechrysalis state the moth may beobserved flying about the gardenor resting upon the leaves duriugcloudy weather. The moth is yel-low ochreous, with
Report on the Rocky Mountain locust and other insects now injuring or likely to injure field and garden crops in the western states and territories . tching it becomes fully grown, beingabout an inch long, and bright-yellow in color, the body being coveredwith large, black dots. The chrys-alis is shining reddish-brown, abouthalf an inch long, and may be fouudlate in June, either upon theground or just under the two weeks after entering thechrysalis state the moth may beobserved flying about the gardenor resting upon the leaves duriugcloudy weather. The moth is yel-low ochreous, with dark, oftennearly transparent, blotches on thewings. It is not easily mistakenfor any other moth. Mr. Riley, inan article on this insect in theAmerican Entomologist, statesthat by sprinkling powdered helle-bore upon the leaves, or applyinga solution of eight or twelve ouncesto a bucketful of water, the cater-l)illars will be killed. Hand-pick-ing assiduously followed up, anda vigorous shaking of the bushes Fig. 62.—Currant Span-Worm. (After Eiley.)over a sheet or a newspaper, repeated twice a day, will keep the insectwithin moderate INSECTS INJUEIXG THE APPLE. The Canker-Wohm, Anisopieryx vernata Peck, and A. autumnaia Packard. (PlateLXIX Figs. 1-4.)—Devouring the leaves ; a dark-striped span-worm, varying in color topale green, transforming iu the earth, and with wingless females and winged males. Next to the apple-tree borer, which has almost cut off the apple-cropof the Eastern States in certain localities, the canker-worm, alwayslocal iu its distribution, is the most injurious. Originally confined, as 792 REPORT UNITED STATES GEOLOGICAL SURVEY. an injurious insect, to Eastern Massachusetts and Connecticut, it is nowinjurious in Illinois and Missouri. It must originally, at least A. vernata,have occurred all over the United States east of the Mississippi, as Ihave received it from Texas. It may possibly be introduced into theTerritories, and therefore I refer t
Size: 1392px × 1794px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectb, booksubjectinsects
