THE INSECTS OF NEW JERSEY. 



ERIOCOCCUS Targ. 

 E. azaleae Cornst. Found on Cratsegus, Rhododendron and Azalea. 



PHENACOCCUS Ckll. 



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Fig. 50. Phenacoccus acericola: a, the cottony masses covering 



adult females on leaf; b, young females and males on 



the bark; natural size. 



P. acericola King. The maple false scale. Referred to as "Pseudococcus 

 aceris" in the last edition and in economic publications. Locally 

 common on sugar maple, often massing on the trunks in dense 

 clumps and sometimes causing serious injury. In cities and towns 

 where water pressure is available, turning on a solid jet from the 

 hose at short range serves to destroy many of the insects. 



P. americanse King & Ckll. Found in the nest of the ants "Lasius ameri- 

 canus." 



