. The Bulletin of the North Carolina Department of Agriculture. Agriculture -- North Carolina. 30 The Bulletin. When the caterpilhir, or "worm" is full grown it spins threads about itself to form a loose sort of cocoon, usually on the under side of a leaf, and inside this it changes to the chrysalis or jnipa state. The cocoon is so thinly spun that the brown, spindle-shaped pupa can usually be seen inside it. The moth emerges from the cocoon after a few weeks, the exact length of time varying, no doubt, according to season and locality. Ordinarily three weeks would probably represent
. The Bulletin of the North Carolina Department of Agriculture. Agriculture -- North Carolina. 30 The Bulletin. When the caterpilhir, or "worm" is full grown it spins threads about itself to form a loose sort of cocoon, usually on the under side of a leaf, and inside this it changes to the chrysalis or jnipa state. The cocoon is so thinly spun that the brown, spindle-shaped pupa can usually be seen inside it. The moth emerges from the cocoon after a few weeks, the exact length of time varying, no doubt, according to season and locality. Ordinarily three weeks would probably represent the length of the pupa stage. When cold weather comes in the fall, the last worms reach maturity, change to pupae, and remain in that stage all Fig. 13.—Adult moth of Cabbage Looper. Enlarged. (Drawing by Z. P. Metcalf.) REMEDIES. All that is said under the head of remedies for the imported cabbage worm (page 27) will apply to this looper. It is combated with Paris green (dry or as a spray) and by all the other means there discussed. The destruction of remnants is important with this species as with the other, for the insect passes the winter in the pupa state, often on old remnants and rubbish in the cabbage field. NATIVE CABBAGE WORM. (Pontia Protodice). Order LepidopUra, Family PieridiC. Description.—This is another of the "cabbage ; In size and general habit much like the imported cabbage worm, but is of a dark greenish purple color with four pale j-ellow strips running the length of the body. It is not so common or so destructive as the two "worms" that have already been described. Life History, etc.—This insect is very closely related to the imported cabbage worm (as one may observe if he cares to compare the technical names), but it is a native of N'ortli America, Avhile the imported worm is not. This native cabbage worm is found in practically all the inhabited parts of North America, though it seems to be most at home in the. P
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