78 



THE SCALE INSECT IN NEW HAMPSHIRE 



badly infested. These were thoroughly treated with Calco- 

 thion, a trade mixture of the lime, sulphur and salt wash made 

 by the Adler Color and Chemical Company, New York. This 

 treatment apparently eradicated the scale without injury to the 

 trees. 



Later in the spring infestations were found in nurseries at 

 Dover, Epping, and Seabrook, and in trees from these nur- 



-iSiiii^^:*a(iJid^"^^"-~i  



CL. 



Fig. 3. San Jose Scale: a, pear, moderately infested — natural size ; ^, female 



scale — enlarged (after Howard). 



series in Rollinsford, Lee, and Durham. The proprietors of 

 these nurseries have shown an evident desire to prevent the 

 spread of the pest, and have destroyed or treated the infested 

 trees. At least one of them is planning to fumigate all his 

 trees, w^hich will render them safe for j)lanting, safer in fact 

 than ordinary trees which have been inspected but not fumi- 

 gated. 



