134 



THE APPLE LEAF HOPPER 



1*107. 



-PeaoTn\ja brdSSicae 

 -fteudocoela a'lilete'v. 



Fig. (58. Table showing time relation between emergence of Cabbage Maggot Fly 

 and Its parasite, J', nillettei, and tbeir comparative abundance. R. L. Webster. 



THE CABBAGE MAGGOT IN 1908. 



This year's efforts were directed more particularly toward find- 

 ing some means of protecting radishes from the attacks of thi^ 

 masfeot. 



EXPERIMENT NO. 1. 



On April 18th eighteen rows of radishes planted. When plants were 

 about V/2 inches high they were treated as follows: Two rows with milk 

 of lime alone, two with emulsion of milk of lime and oil of cloves, four 

 with milk of lime and crude carbolic acid added. See Experiment No. 2 for 

 proportions. On May 23rd this treatment was repeated. 



Results: Pulled and examined June 4. No effect for any treatment. 



EXPERIMENT NO. 2. 



About May 6th thirteen rows of radishes, each one thirty-one feet long 

 were planted and treated variously as follows: Milk of lime (2 lbs. to 3 

 gals, of water) containing oil of cloves (1 oz. to 3 gals.), and milk of lime 

 containing crude carbolic acid (1 tablespoonful to 1 gal.). 



