12 MAINE AGRICULTURAL EXPERIMENT STATION. 



Lime-sulphur washes are to be recommended for sprays, while 

 nursery stock imported from localities known to be infested 

 should be fumigated. Complete directions for spraying will be 

 found in "San Jose Scale and its Control" Circular 124, Bureau 

 of Entomology. This paper may be obtained upon request by 

 addressing "United States Department of Agriculture, Wash- 

 ington, D. C." 



European Fruit Tree Scale. 

 (Aspidiotus ostreaeformis.) 



The scale of female is circular or broadly oval in outline, 

 dark ashy gray in color with paler margin ; sometimes the scale 

 is nearly white. The exuvia is usually not quite central, though 

 nearly so, dark brown, usually naked and glossy. 



The winter is passed by partly grown individuals which 

 become mature early in the summer. The insect gives birth 

 to living young which begin to appear soon after the maturity 

 of the female. In this State they are apparently but single 

 brooded. 



Spraying with lime-sulphur late in the winter or early spring 

 before the appearance of the leaves will control it. 



Scurfy Scale. 

 (Chionaspis furfura Fitch.) 



The female scales are grayish white and somewhat irregularly 

 pear shaped. The male scale is smaller, snowy white, narrow, 

 and usually straight. 



The winter is passed in the egg underneath the scale of the 

 female. As with the oyster-shell scale the young hatch in 

 June and soon fix themselves by their beaks either upon the 

 bark of the tree or upon the fruit. 



The remedial measures are the same as for the oyster-shell 

 scale. 



European Fruit Lecanium. 

 (Lecanium corni Bouche.) 



This large soft brown scale occurs in many states on a very 

 large number of shrubs, fruit and shade trees. One or two 



