REPORT OF THE ENTOMOLOGISTS. 



PART II. 



F. A. SIRRINE. 



I. MISCELLANEOUS NOTES OF THE SEASON. 



Summary. 



(1) The results indicate that cucumber vines can not be pro- 

 tected from the attacks of the striped cucumber-beetle by using 

 poisoned Bordeaux mixture or even poisoned resin-lime mixture. 



(2) The Colorado potato-beetle will not feed on potato vines 

 that have been thoroughly sprayed with Bordeaux mixture. 

 Probably potato vines which have been thoroughly sprayed with 

 Bordeaux mixture are free from the attacks of the flea-beetle 

 because the mixture is just as distasteful to them as to the Colo- 

 rado potato-beetle. 



(3) The indications are that the squash borer can be controlled 

 entirely by cultural methods. The methods recommended are 

 as follows: Harrow in the fall, but do not plow, the fields on 

 which the squashes have been raised. When ready to use the 

 ground in the spring plow at a uniform depth of six or eight 

 inches, turning the soil as completely as possible. Do not re- 

 plow until the following fall. As far as possible throughout the 

 summer give shallow cultivation to the old squash field. 



(4) In sections where the onion thrips is destructive to onions 

 it is recommended that a few rows of set-onions be planted on 

 the margins of the fields, and that these be sprayed every week 

 or ten days with kerosene emulsion, whether the work of the 

 thrips is to be seen or not. 



(5) Where the red spider has occurred on raspberries in in- 

 jurious numbers, it is recommended that the leaves be raked 

 and burned in the fall, and, as an extra precaution, that the 

 canes be sprayed about April 20 with a solution of whale oil 

 Roan or with kerosene emulsion. 



