GRASSHOPPERS AND OTHER INJURIOUS INSECTS OP 1911 AND 1912. 23 



time she appeared in perfect condition. On 26th, sprayed enclosed 

 area again, same proportions and amount as above. Heifer turned 

 in on treated grass one hour after spraying. A heavy rain occur- 

 ring a few hours thereafter, we again sprayed the grass as above, 

 the heifer browsing on it immediately. For two and one-half days 

 she was confined on this poisoned pasture, receiving no other food, 

 after which period she was placed on outside grass and carefully 

 watched for five days. No unpleasant symptoms of any kind ap- 

 peared. At time of experiment she was within a month or two of 

 calving and was sold to a party desiring a milch cow. At date of 



Fiff. 16. Another view of sprayer. 



writing she is in fine condition. A week after she was taken from 

 the pasture a pet horse was turned in and allowed to feed there for 

 half a day without the slightest effect upon the animal. 



As regards fall plowing it is possible it will be necessary to 

 qualify recommendations in that connection, and the advice that we 

 have given to this end in years gone by may represent an example 

 of the general acceptance and promulgation of certain remedies, the 

 thoroughness of which has not been properly tested,. 



In the first place, farmers for the most part will not plow in the 

 late fall. They have large tracts of land to handle, and as a rule, 

 feel that they must begin their plowing immediately after the crop 

 is off the ground. This is before egg-laying takes place. Our field 

 agent, Mr. Somes, doubts the efficacy of the plow unless it is fol- 



