INSECT ENEMIES. 95 



tude of remedies have been proposed for this pest, 

 but few of them are of much value. The worms 

 are most abundant and destructive in the latitude 

 of New York during the month of May. Fortu- 

 nately, cauliflowers are usually set out either earlier 

 than this, for the early crop, so that they become 

 well established and out of reach before their depre- 

 dations seriously begin, or else, for the late crop, 

 they are set toward the last of June, after the 

 worms have begun to pupate, and are no longer 

 troublesome. Until recently, digging and killing 

 the worms by hand seemed to be almost the only 

 practical remedy. Of late years, trapping the 

 worms under bunches of grass or cabbage leaves, 

 scattered over the ground preparatory to setting 

 the plants, has been successfully resorted to. An 

 improvement upon this method, recommended by 

 the Entomologist of the United States Department 

 of Agriculture, is now in use, and gives excellent 

 satisfaction. It consists in poisoning with Paris 

 greenrthe leaves used to trap the worms, so that 

 there is no need to collect and kill the worms by 

 hand. A good way to do this is to spray with 

 Paris' green, in the usual way, a patch of young 

 clover, then cut it and scatter it in small bunches 

 over the cauliflower field a day or two before setting 

 the plants. For the protection of a few plants in 

 the garden, an effectual preventive against cut- 



