No. 7, DEPARTMENT OF AGRICULTURE. 291 



PROF. BUTZ: The use of fungicides is not very satisfactory. The 

 best treatment is to remove and burn the entire diseased cabbage or 

 cauliflower plants as soon as the disease is recognized. 



MR. DRAKE: Any trouble with cabbage maggots? 



PROF. WATTS: Not to any extent. Dr. Thayer can enlighten you 

 on that subject. 



DR. THAYER: When I can get my cabbage out before iMay 1, I 

 have not been troubled, but when I am coming into May I get the 

 maggot. It is easily disposed by using carbon bisulphide. Thrust 

 a dibber down, slant it under the root, drop in about a drachm and 

 close the earth quk-kly. The w^ay to get rid of that maggot, is to get 

 your cabbage well started before it appears in May. 



MR. WYGKOFF: While I am not extensively engaged in growing 

 cabbage, my experience with the maggot is directly opposite to that 

 of the last speaker. Early in April the cabbage plants were placed 

 out in the field and I lost about 75 per cent, of them, not knowing 

 at that time how to fight them. Plants of the same variety and taken 

 from the same bed later, plants that were not so well-developed, I 

 had no difficulty with whatever. Why did the maggot destroy the 

 first plants in the plot where cabbage had not been raised for three 

 or four years? 



PROF. SURFACE: There are two broods of these flies per year. 

 They come within a range of two weeks time. There is a period in 

 which the flies do not plant their eggs. If you plant during that 

 period, your cabbage will not be infected. 



MR. SCHWARZ: Use muriate of potash. I have watering-pots 

 with long spouts into which I put a solution of muriate of potash 

 and apply it in a very fine stream. We saved the entire field by 

 this method. 



PROF. SURFACE: Salt is effective. Apply a thimbleful of salt 

 close to the root of each plant. It is better than Paris green because 

 it would penetrate while the Paris green would have to be absorbed. 

 Carbon bisulphide w'ould work in a firm soil, but would not be effec- 

 tive on a loose or sandy soil. 



MR. SCHWARZ: Succession is the last cabbage I would recom- 

 mend for early. 



PROF. WATTS: I simply grow Succession cabbage because it is 

 one of my best paying varieties. Seed should be sown early. 



