. Annual report. 1st-12th, 1867-1878. Geology. 750 REPORT UNITED STATES GEOLOGICAL SURVEY. crow-quill. It chaoges in September, under some board or stone, to a chrysalis, suspended by a thread s^jun over the back as shown at Fig. 20, b. It is of a pale flesh-brown color, freckled with black. It winters in this state, the butterfly appearing in Massachusetts early in May. The native cabbage-butterfly {Pieris protodice, Figs. 21-23) is but slightly injurious to the cabbage in the Southern and Western States. Remedies.—It does not appear to have been very de- structive in Europe, but, like other
. Annual report. 1st-12th, 1867-1878. Geology. 750 REPORT UNITED STATES GEOLOGICAL SURVEY. crow-quill. It chaoges in September, under some board or stone, to a chrysalis, suspended by a thread s^jun over the back as shown at Fig. 20, b. It is of a pale flesh-brown color, freckled with black. It winters in this state, the butterfly appearing in Massachusetts early in May. The native cabbage-butterfly {Pieris protodice, Figs. 21-23) is but slightly injurious to the cabbage in the Southern and Western States. Remedies.—It does not appear to have been very de- structive in Europe, but, like other introduced species, it suddenly becomes a fearful scourge in a new country. The best remedies are evidently hand-iDicking, when the caterpillars can be seen, and the capture of the butter- flies by means of a light gauze-net mounted on a wire ring a foot in diameter, and attached to a short pole. Affected cabbage-heads should be carefully examined, and if much infested by worms, be burned; for, if they are suffered to lie about the garden after being pulled up, the caterpillars will attack the other Pig, 20.—European Cabbage Butterfly. a, caterpillar, 6, 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 Geological and Geographical Survey of the Territories (U. S. ); United States. General Land Office; United States. Dept. of the Interior. Washington, Govt. Print. Off.
Size: 1131px × 2210px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, bookpublishe, booksubjectgeology
