394 Report of the Entomologists of the 



This salted acre never developed nor yielded any better than the 

 checks of the sprayed portions of the field. 



Second test. — The second test was made on the farm of F. P. 

 Baylis, Floral Park, 1ST. Y. The field contained 5 acres of very 

 late cabbage; only one-half acre was sprayed, the remainder of the 

 field being treated with dry Paris green and flour by the owner. 

 The majority of the plants had only 5 or 6 leaves at the time 

 the first treatment was made, August 29. 



Plat 1. Two rows each of Savoy and Plat Dutch, sprayed with 

 resin lime mixture and Paris green. 

 Two rows each of Savoy and Flat Dutch, check. 

 Plat 2. Two rows each of Savoy and Flat Dutch, sprayed with 

 Bordeaux mixture. 

 Two rows each of Savoy and Flat Dutch, check. 

 Plat 3. Two rows each of Savoy and Flat Dutch, sprayed with 

 Bordeaux mixture, resin mixture, and Paris green com- 

 bined. 

 Two rows each of Savoy and Flat Dutch, check. 



These plats were examined August 31; plenty of dead, and 

 very few living, worms of either the cabbage looper or the cabbage 

 worm were to be found on either variety of cabbage on Plats 1 and 

 3; plenty of living, and no dead, worms were found on Plat 2. 

 On September 4, after heavy rains, the plats were re-examined. 

 To all appearances there was little if any difference in the ad- 

 hesive qualities of the Bordeaux mixture and the resin lime mix- 

 ture when used separately, but the latter mixture was more evenly 

 distributed over the leaves than was the Bordeaux mixture. The 

 Bordeaux mixture adhered simply in the folds of the leaves. 



under the same conditions as the above test of salt. The caterpillars or 

 worms are not noticed until they are nearly full grown, and then the tester 

 salts, with the result that the worms are disturbed and crawl away to pupate 

 instead of dying. Most kinds of caterpillars if irritated or disturbed when 

 nearly full grown will stop feeding and crawl away to pupate. The butter- 

 flies and moths resulting from such caterpillars are not always perfect speci- 

 mens but they are capable of reproducing themselves. 



