The Bulletin. 



25 



Cannot Exterminate Scale.— I^o one need expect to "exterminate" or 

 "get rid of" the San Jose Scale when it once becomes firmly established 

 in his orchard, no matter what measures he uses. It is here to stay, 

 and our growers need to recognize it as a permanent pest, to be fought 

 regularly and intelligently. If this be done there is no difficulty in keep- 

 ing it under good control ; but the man who starts in with the idea that he 

 can exterminate it is apt to merely deceive himself. We need to look' at 





Fig. 8. — Peach tree cut back to stub two years before, now making new top 

 and filled with bloom. (Photo by Sherman.) 



this thing in the light of common-sense experience. We don't expect to 

 "exterminate" potato beetles, but the means of control are such that no 

 potato grower need lose a crop from them. We do not expect to "exter- 

 minate" the flies in our houses, but the means of control enable us to 

 reduce their number and control them. jSTo insect pest which has so 

 many means of spread has ever been absolutely exterminated when once 

 thoroughly established. It is a matter of control, not of extermination. 



OUR POLICY IN REGARD TO SAN JOSE SCALE. 



Many persons think that the State Department of Agriculture makes 

 a pfactice of destroying all orchards that are found to be infested with 

 San Jose Scale, and for this reason some people hesitate to let us know 

 that they suspect the scale is in the orchards, or they hesitate to give the 

 names and addresses of their neighbors and friends whose orchards may 

 be infested. 



