54 
HALF HOURS WITH INSECTS. • [Packard. 
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 burnt, for if 
they are suffered to lie about the garden after being pulled 
up, the caterpillars wdll attack the other plants. 
A correspondent of the “American Agriculturist” for 
November, 1870, states that “it is estimated that the loss 
from this insect will, in the vicinity of New York [city] 
Fig. 41. Fig-. 43. 
Imported Cabbage Butterfly, female. Caterpillar and Chrysalis. 
alone, exceed half a million of dollars ; and already the price 
of cabbages has advanced.” He says that Mr. Quinn, the 
owner of a large plantation, “has found carbolic powder, 
superphosphate and lime together, to destroy them. The 
carbolic powder appears to be sawdust impregnated with car¬ 
bolic acid. Salt has been recommended, but Mr. Quinn did 
not find dry salt efficacious, though lime has been reported 
by others as useful.” 
22 
