. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . army-worm.—6, its head ; c, d, its body segments eiilara;ed. 'iiu fiiigtpi'i da ami its \ ariatioiis. avoid injury, and a frequent rotation will prevent them from be- coming numerous enough to be destructive at any time. The arsenites can be employed, of course, for the protection of crops that admit of being sprayed. Wheat-fields badly infested in lall are not necessarily ruined or e\en much injured, because wheat will stand cutting down almost to the ground dur


. Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . army-worm.—6, its head ; c, d, its body segments eiilara;ed. 'iiu fiiigtpi'i da ami its \ ariatioiis. avoid injury, and a frequent rotation will prevent them from be- coming numerous enough to be destructive at any time. The arsenites can be employed, of course, for the protection of crops that admit of being sprayed. Wheat-fields badly infested in lall are not necessarily ruined or e\en much injured, because wheat will stand cutting down almost to the ground during the latter part of the season, and will yet come up vigorous and in good condition the spring following. The moth that produces this caterpillar is a modest, gray creature, expanding hardly more than an inch, and the hind wings are pure white and semi-trans- parent. It is a variable species, and ranges from an almost uni- form gray to forms in which there is a considerable admixture of bluish white, the ordinary lines and spots of the owlet-moths being also well marked.


Size: 2051px × 2438px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1906