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Insect DiseasaB of, t jie Apple . 



Codling; Moth. The Codling-moth costs the fruit grower 

 an annual tax of $3,000,000 in New York alone, and it is es- 

 timated that it would cost $8,000,000 to spray the apple 

 trees in the United States for the Codling-moth at 4 / a 

 tree. The Codling-moth is the parent of the apple worm 

 and is the cause of nearly all wormy apples. The apple 

 wonns pass the winter as full-grown larvae in rough, silken 

 cocoons under the loose bark of the trees. In the spring 

 they change to pupae and the eggs are laid on the fruit and 

 leaves. The larvae begin hatching about 3 weeks after the 

 blossoms fall, and continue hatching throughout May. On 

 emerging from the eggs they do a little feeding, and at this 

 time before they enter the young apple, will be killed if 

 the trees have been properly sprayed. They live in the ap- 

 ple about 4 weeks and leave it through a hole in the side; 

 they crawl to some crevice in the bark or elsewhere, spin 

 a cocoon and change to pupae and come out as adults that 

 year or remain until the next spring. 



Control: Two applications of Paris green, 1 lb. to 

 103 gallons of water; or arsenate of lead, 2* lbs. to 50 

 gallons of water. One application within one week after 

 blossoms fall, end a second application about a week or 

 ten days later. 



San Jose Scale. The San Jose Scale is a tiny insect 

 first found in San Jose, California, from which it bears 

 its name. The insect multiplies in such vast numbers on 



