INJURIOUS INSECTS OF 1903. 



159 



mites appeared to be dead, but within two hours many showed 

 activity. The firm further stated thaat in their opinion the proc- 

 ess was not a proper one commercially for evaporated fruit, 

 since the odor of the gas was perceptible on the apples first 

 treated after more than two weeks of good ventilation. 



I am forced to ascribe the failure of this third treatment to an 

 incorrect estimation of the cubic contents of the room used, and 

 hence the use of a ^rong amount of CS2. I was informed that 

 estimating the amount of bisulphide was left to the druggist 

 from whom it was purchased. 



It may be of interest to add here that information has just 

 reached this office that the trouble under discussion disappeared 

 and has not been apparent since. 



REMEDIES FOR THE SQUASH BUG AND MEANS OF 

 PREVENTION OF INJURY. 



The Entomologist has been repeatedly asked for remedies for 

 this well knoVk'n pest, and inserts here the standard method of 

 combating the insect: 



Fig. 100. — Squash Bug. Anasa tristis. 



Protection of young plants by coverings.. 



Planting an excess of seed in order to distribute the attack. 



Hand picking early in the morning. 



Hand picking the large, yellowish brown eggs, which can be found 



without much difificulty on the under side of the leaves. 

 Strewing some repellant on soil close to plant, such as lime, or 



gypsum, or sand saturated with kerosene or turpentine. This is 



of questionable efficacy. 



