Pomona Collkqe Journal of Entomology 619 



APPLICATIONS 



It will often be necessary to apply a single .si>ray a miniber of times in order 

 to get all satisfactorj' results. These applications should be made at intervals of 

 from four to six days until the insects disappear or greatly diminish in numbers. 



One of the greatest successes of a spray is thorough application under high 

 pressure. With a common bucket or knapsack pump only the first can be 

 accomplished, but if even this is observed good results may be obtained. If, 

 however, a power outfit can be had and a pressure of from one hundred to two 

 hundred pounds maintained, one spraying will usually suffice with excellent 

 results. Young buds are not secure enough to be sprayed with a power sprayer, 

 and must be treated with a hand pump. 



An Aphid Note 

 According to the later revisions of the tribe Chaitophorini and its included 

 genera, the species described as Chaitophorus salicicola n. sp. (Pomona College 

 Journal of Entomology, III, No. 3, p. 532, 1911) should be Thomasia salicicola 

 n. sp. 



