THE CABBAGE MAGGOT. 



15 



lave been made elsewhere to the fact that eggs which were 

 shaken in a vial subsequently hatched. 



Scvaping Eggs azvay from Plant: The tiny white eggs 

 just visible to the naked eye, are for the most part laid in the 

 soil close to the stalk. It therefore, would seem that if these 

 eggs could be scraped away from the plant six inches or more, 

 that many maggots would perish before they could reach the 

 stalk. Of course, every plant must be treated. Accordingly 

 we had 280 early cabbage plants "scraped" on May 15th, 

 again on May 23rd, again on May 28th, and for the last time 

 on June 4th. The earth each time was scraped away with a 

 putty knife to a depth of from 34 to ^ inch, about four plants 

 being treated per minute. On July 7th we found that 127 

 treated plants out of 150 had headed. These plants were in 

 the field above referred to as fairly exempt from attack, and 

 no fair conclusions can be reached as to results. Some other 

 tool might be more advantageously used than a putty knife. 

 One woulfl imagine that a sharp hoe in the hands of a careful 

 workman would be a more advantageous and more easily 

 handled instrument. 



Fig. 8.— A rather crude apparatus for applying carbolic emulsion to cauliflower and 



cabbage plants. 



Sand and Kerosene: i pint of kerosene mixed with 2 

 gals, of sand and placed about base of cauliflower plants as a 



