202 MUCK CROPS 



remedy is cleaning up the old beds, allowing 

 no refuse matter to remain near the beds. 

 Fall plowing is still another remedy. The 

 use of kainit is being recommended quite 

 highly. It seems that the salt in the kainit 

 has a bad effect on the fly or the immature 

 insect. 



The latest remedy for the onion maggot 

 is a spray consisting of a fifth ounce of white 

 arsenic, one pint of cheap molasses and one 

 gallon of water, mixed together. This mat- 

 erial is sprayed on the foliage of the onions 

 or other plants, beginning at the time when 

 the onions are just breaking through the 

 ground, and continuing for at least six or 

 eight weeks. The spraying must be re- 

 peated after each rain. The best practice 

 seems to be that of spraying every fifth day. 

 The molasses attracts the fly, which lays the 

 egg that creates the maggot. The poison 

 will kill the flies when they consume the 

 molasses. 



The application of the spray differs from 

 all other sprays; the spray must be in the 

 form of drops and not in a mist, therefore, 

 a watering-pot, whisk brook or some other 

 coarse working material will be necessary to 

 use as an apparatus, 



