CROP PEST COMMISSION OF 



serious obstacle to successful fruit growing, it seems but proper 

 that the Commission should at this time publish a description of 

 the San Jose scale, together with the remedies that should be 



FIG. 1. Appearance of San Jose scale upon the bark of a fruit tree : a, 

 infested twig, natural size : b, -bark as it appears under hand lens, showing scale 

 in various stages of development, and young larvae. (After Howard & Marlatt, 

 Bui. No. 3, n. ser., Div. of Entomology, U. S. Dept. of Agriculture). 



applied in infested grounds and orchards. The descriptions and 

 illustrations of the insect, it is hoped, will be of assistance to 

 fruit growers in recognizing the pest in their orchards, while the 

 remedies recommended we know from experience and observation 

 to be fully efficient. The present short bulletin does not present 

 any facts new to entomologists or Experiment Station workers, 

 but is made up for the most part of compilations and from the 

 experiments and observations made by the writer in other States. 



