330 AGRICUIvTURE OF MAINE). 



smaller, less curved and usually not found on fruit trees. As 

 with the San Jose scale the adult male is provided with both 

 wings and legs while the female, remaining under the scale, has 

 neither, 



REMEDIES. 



This insect is quite resistant to the application of sprays 

 unless it be put on at the time when the young appear, before 

 the formation of the scale. This is about the middle of June, 

 though the exact date cannot be given as it varies with latitude 

 and temperature. As soon as the young larvse are observed the 

 trees should be sprayed with soap solution (Formula lo), kero- 

 sene emulsion (Formula 7), or whale-oil soap solution (For- 

 mula 9), repeating if possible a week later. The kerosene 

 emulsion should be put on in sunshiny weather and care should 

 be exercised not to use an excess amount, lest the tree be 

 injured. 



2. San Jose Scaee. 



(Aspidotns pcrniciosus.) 



The San Jose which is one of the worst insect pests of 

 orchards in other states was discovered in the town of Lim- 

 erick, ISIaine, in 1909. As there is always a danger of its 

 introduction upon nursery stock from neighboring states, the 

 observation of small circular scales about the diameter of a 

 pin head (fig. 4) upon the twigs of fruit trees should imme- 

 diately be reported. 



Fig. 4, a, Female, scale removed : b, cluster of scales ; c, fnmale scale ; 

 all greatly enlarged. (After Felt.) 



The female scale is circular in outline, grayish or blackish 

 in color, and when examined under a lens will be seen to be 



