Losses to cotton, what to look for and where to find it, being one of a series of articles in relation to crops, their common diseases and insect pests to which they are subject . WHITE GRUBSShowing the 3-Year ] eriod of their cycle life. the correcting of farm practices; but after cotton or anyfield croj) has become infested it is imjiossible to preventfurther injury to that particular crop for the currentseason. The Garden Web Worm This widely distributed and common insect is espe-cially notable because of its occasional outbreak. Its ordi-nary food plants are a number of common weeds, espec
Losses to cotton, what to look for and where to find it, being one of a series of articles in relation to crops, their common diseases and insect pests to which they are subject . WHITE GRUBSShowing the 3-Year ] eriod of their cycle life. the correcting of farm practices; but after cotton or anyfield croj) has become infested it is imjiossible to preventfurther injury to that particular crop for the currentseason. The Garden Web Worm This widely distributed and common insect is espe-cially notable because of its occasional outbreak. Its ordi-nary food plants are a number of common weeds, especiallypigweed and purslane, but when these are used up because. VARIOUS STAGES OF THE WEB WORM. of exceptional abundance of the larva, the latter readilydevour cultivated crops, including cotton. Web wormsare especially fond of the finer and softer grasses in thesouth, such as butTalo grass and Johnson grass. The mature larva, about five-eighths of an inch long,are whitish or dusky or even greenish, with black spin a loose but evidently individual web, rarely more than one worm occupying the same web. This web inclosesmore or less of the foliage of an infected plant. The larva are very active, feigning- death when dis-turbed or spinning a thread and dropping to the ground,slipping out of sight in crevices or loose earth. Most ofthe feeding is done at night, the larva usually resting inthe web by day until the last stage, when they are activeduring the daytime. Plant Lice While the cotton i)lant is yet young and tender, thedamage which plant lice do by gathering upon the youngshoots and tender leaves, and curling and distorting them,may b
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