EXPERIMENT STATION BULLETINS. 515 



For leaf-hoppers, sometimes incorrectly called "Thrip," spray with 

 nicotine or with kerosene emulsion while the insects are vonns:, and 

 before they can fly. Later in the fall, clean up all rubbish and burn 

 after cold weather sets in. 



For climbing cut-worms, use cotton bands or bands of sticky mix- 

 ture. On tender growth these can be put on stsips of paper. 



GENEKAL TREATMENT FOR CURRANTS AND GOOSEBERRIES. 



San Jose and European fruit scale are often found upon these bushes. 

 Inspect carefully for them. If found, spray before growth starts with 

 strong lime-sulphur. 



Just as the Leaves are Expanding, spray with dilute lime-sulphur or 

 Bordeaux and two pounds of arsenate of lead to every fifty gallons. 



Repeat this spraying when the fruit is about one-fourth grown. 



If worms trouble after this, use pyrethinim or hellebore. 



Leaf bugs or aphids may appear. When they do, spray with nicotine 

 or strong tobacco water while the bugs are red and wingless and before 

 the leaves have become curled. 



Gooseberry Mildew is a fungous disease that is especially troublesome 

 on the English varieties as Industry, Columbus and Chautauqua. Spray 

 with dilute lime-sulphur. Begin when the buds start and repeat every 

 10 days or 2 weeks until near picking time. 



When Pruning, if a cane is cut that shows discolored pith, it may 

 indicate the cane borer. Cut back to sound pith. Burn trimmings. 



Wilted Foliage at anv time indicates the cane borer. Cut out and 

 burn. 



GENERAL TREATMPINT FOR RASPBERRIES, BLACKBERRIES 



AND DEWBERRIES. 



Orange Rust may appear in May or June. It is easily identified by 

 the bright orange color on the under side of the leaves. There is no 

 method of preventing this trouble. As soon as it is found, the bush 

 should be dug out and burned. If allowed to remain the disease will 

 spread and destroy many plants. 



Anthracnose, identified by the grayish spots on the canes (also on 

 leaves but not conspicuous), is common in many berry fields. It does 

 not yield to spraying unless very frequently done with Bordeaux mix- 

 ture and this may not be profitable. If desirable, make the first spray- 

 ing when the new canes are 6 to 8 inches high and repeat every two 

 weeks during the growing season. 



Cutting out and burning the old canes immediately after fruiting will 

 be of some benefit. In starting a new field, make a special efifort to 

 secure healthy plants. 



"Worms'^ or "Slugs" might appear at any time. Spray with an 

 arsenical if early in season, but if near picking time, use hellebore or 

 pyrethrum. 



Cut out and burn gouty galls, tree cricket eggs or borers in stems. 



