INSECTS INFESTING THE APPLE THEE. 



Fjff. 20. Ficr. 21 



63 



Fig. 19. 



[Fig. 19. — Sau Jose Scale, insect (adult 

 male) enlarged.] 



Fig. 20. — Pupa of San Jose Scale, insect 

 enlarged. 



Fig. 21. — San Jose Scale, insect (male pupa) enlarged. 

 This species produces three broods each year ; the first may 

 be expected about the time that cherries begin to color, the 

 second in July, and the third in October. 



Remedies. — When the tree is dormant, use No. 11, No. 12. 

 Or No. 13 — seven pounds of the mixture to each eight gallons 

 of water. (The latter is preferable.) (Spray.) 



When the tree is in leaf use No. 6 — one pound of mixture 

 to each five quarts of water (or 1:^ gallons) — or No. 5, or No. 7. 

 Caution. — Beware of mineral oils. 



CHAPTER XXI. 



The Greedy Scale Insect. (Cal.) 

 (Aspidiotus rapax — Comstock. ) 



Order, Hemiptera ; 

 Sub-order, Homoptera ; 



Faniilv, Coccid.e. 



[Infesting apple, pear, quince, peach, plum, apricot, almond, 

 and olive trees ; also, acacia, willow, eucalyptus, locust, and 

 other ornamental and forest trees.] 



This species was given the specific name rapax, or Greedy 

 Scale, by Prof. J. H. Comstock, in 1881, on account of the 

 great number of plants upon which it subsists. I found it 

 on the fruit trees at Santa Cruz, in May, 1881, and wrote of it 

 under the common name, Santa Cruz Scale, but have since 

 found that.it is generally distributed throughout the fruit dis- 



