. Bulletin. Agriculture -- New Hampshire. 94 NEW HAMPSHIRE COLLEGE somewhat like the common house fly in general appearance, which appears in the cabbage field soon after the plants are set out, and deposits its eggs about the stems at the soil surface. The little, whitish maggots soon hatch, and work their way downward to the roots, which they attack, feeding upon the outer surface and thus making grooves, or boring into the interior and hollowing out cavities. The effect of their work is to remove the fibrous roots from the plant, so that when pulled up it resembles Fig. 4. In two or three w
. Bulletin. Agriculture -- New Hampshire. 94 NEW HAMPSHIRE COLLEGE somewhat like the common house fly in general appearance, which appears in the cabbage field soon after the plants are set out, and deposits its eggs about the stems at the soil surface. The little, whitish maggots soon hatch, and work their way downward to the roots, which they attack, feeding upon the outer surface and thus making grooves, or boring into the interior and hollowing out cavities. The effect of their work is to remove the fibrous roots from the plant, so that when pulled up it resembles Fig. 4. In two or three weeks the maggots be- come full-fed (a), and they change to the pupa state within. Fig. 4. Young Cabbage Plant denuded of roots by maggots. (Original.) hard brown puparia (6), to emerge some da}7s afterward as adult flies. There are probably three or four broods each season, and the insect apparently hibernates in each of its three later stages. Considerable damage was reported early in the season from the work of various species of cut worms. The same weather conditions that favored the development of the army worm, doubtless led to an unusual abundance of these closely related pests. Clarence M. Weed, 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 New Hampshire Agricultural Experiment Station. [Hanover, N. H. ] : New Hampshire Agricultural Experiment Station
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Keywords: ., bookauthornewhamps, bookcentury1800, bookdecade1890, bookyear1896
