320 



STATE HORTICULTURAL SOCIETY. 



RED RUST (Coeomam7ens,Schw.). 



Plantations of both blackberries and strawberries, particularly the for- 

 mer, are often greatly injured by this disease. It appears upon the young 

 stems, generally when they are about one half grown, and may extend to 

 the petioles and ribs of the leaves. It lives in the tissues and finally bursts 

 through the epidermis and scatters its numerous orange-colored spores. 

 As a rule, the pustules are considerably elongated, following the furrows in 

 the stems and branches. When the disease appears, the plant should at 

 once be cut out and burned, and if much of the shoot is involved the entire 

 stool should be sacrificed. The neighboring plants, and desirably the 

 entire plantation, should then be sprayed with copper sulphate solution or 

 Bordeaux mixture, to prevent the infection of other plants. In some cases 

 this disease has been very destructive, ruining entire plantations, and every 

 effort should be taken to prevent its spread. 



INSECTS OF THE RASPBERRY AND BLACKBERRY. 



THE TREE CRirKETS. 



Fig. 34.- 



-Male and female of a Tree Cricket; also canes 

 containing eggs. 



These crickets weaken the canes con- 

 siderably at times by making a longi- 

 tudinal row of punctures filled with 

 eggs for several inches down the canes. 

 These eggs are long, cylindrical, curving 



slightly, and 

 look considera- 

 bly like a grub, 

 for which they 

 are often mis- 

 taken. They 

 are laid in the 

 fall and remain through the winter. The young crick- 

 ets, instead of feeding on the canes in the spring, when 

 they hatch from these eggs, leave the canes and feed 

 on plant lice and succulent green food and fruits. 

 Our most common species is CEcanthus fasciatiis 

 Fitch. 



There is no satisfactory remedy except to cut out and 

 burn the canes containing eggs in the fall or early 

 spring. Clean culture of the berry patch and borders is 

 an excellent preventive. If these two points are 

 observed, no extensive injury need be feared. . :. . 



