22 FRUIT INSECTS 



given better results. It sticks better to the foliage and fruit, 

 contains practically no free arsenic and may be coml^ined with 

 the dilute lime-sulfur, as used for the apple scab. One pound 

 of Paris green or 4 to 6 pounds of arsenate of lead in 100 gallons 

 of water has, in general, given the best results. Paris green or 

 arsenate of lead may be combined with Bordeaux mixture and 

 arsenate of lead with lime-sulfur, but Paris green has proved 

 injurious to the foliage when used with the latter. Success 

 in controlling the codlin-moth does not depend so much on 

 the kind of poison used as on the thoroughness and timeliness 

 of the application. The personal factor is of the greatest 

 importance. 



At picking time many infested apples are carried to the 

 packing shed or storehouse, where the larva) emergen and spin 

 up in cracks and crevices. In case the storehouse is near the 

 orchard the windows should be screened to prevent the escape 

 of the moths the following spring. 



Before the discovery of the arsenical method of controlling 

 the codlin-moth banding the trunks with strips of burlap was 

 widely practiced. These bands arc; put around the trunk and 

 larger l)ranches, and beneath them a large proportion of the 

 larvae will spin their cocoons. They should h^ examined and 

 the larvae killed regularly every week during the cocooning 

 season. It is generally believed that in properly sprayed 

 orchards the use of bands will not pay for the trouble and 

 expense involved. 



Heferences 



Howard, Kept. U. S. Dopt. Agr. for 1887, pp. 88-115. 



Cornell Agr. Exp. Sta. Bull. 142. 1898. Extensive bibliography. 



U. S. Bur. Ent. Bull. 41. 1903. 



Utah Agr. Exp. Sta. Bull. 87. 1904. 



Utah Agr. Exp. Sta. Bull. 95. 1906. 



Wash. Agr. Exp. Sta. Bull. 77. 190(3. 



N. M. Agr. Exp. Sta. Bull. 65. 1907. 



111. Agr. Exp. Sta. Bull. 114. 1907. 



