248 



SUCCESSFUL FARMING 



spray should be given before the blossoms open or at the time the cluster 

 buds have opened out. 



On plum, peach and cherry trees most of the injury is caused by the 

 grubs inside the fruit. 



Treatment. For plums, spray with arsenate of lead, two pounds to 

 50 gallons; first, soon after petals fall; second, a week or ten days 

 later. 



For cherries, same as for plum. 



For peaches, first, spray just as calyxes or shucks are shedding; 



ROSE CHAFER 

 (Macrodactylus subspinosus) . 1 



A Adult, or beetle. B Larva. C, D Mouth parts of larva.. E Pupa. 

 F Injury to leaves and blossoms of grape, with beetles at work. A, B, E 

 Much enlarged. C, D More enlarged. F Slightly reduced. 



second, spray three weeks later. When spraying peaches, self-boiled lime- 

 sulphur is usually added to prevent fungous troubles. 

 Farm. Bull. 440, Farm. Bull. 492. 



The Rose Chafer (Macrodactylus subspinosus, Fab.). This beetle is 

 recognized by his long legs and yellowish-gray color. Often in sandy 

 regions the beetles swarm upon the grapes in great numbers, causing 

 serious injury. 



i Bur. Ent. Bull. 97. 



