168 STATE HORTICULTURAL, SOCIETY. 



not Stain the fruit such as weak cojjper sulphate solution. (See page 

 173.) 



There are several grape insects that are found only in occasional vine- 

 yards and then not every year. The grower should keep a sharp watch 

 of his vines for them and if found, take prompt measures to destroy 

 them. (If not familiar with their appearance send specimens tj The 

 Entomologist, East Lansing, Michigan.) 



Those most likely to be found are the following: 



Flea-beetles may appear at any time but are most likely to come as 

 the buds open in early spring. Spray with bordeaux mixture and a 

 strong poison, 3 or 4 pounds of arsenate of lead to every fifty gallons 

 of the bordeaux; if early in spring. Later use less poison. 



In vineyards where the grape-berry moth is serious, spray with bord- 

 eaux and an arsenical poison during the middle of July, before the 

 20th. 



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

 nicotine or with kerosene-emulsion while the insects are young, and 

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

 after cold w^eather sets in. 



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

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



GENERAL 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 pyrethnim or hellebore. 



Leaf bugs or aphids may appear. AVhen 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 fungus 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 any time indicates the' cane borer. Cut out and 

 burn. 



GENERAL TREATMENT 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. 



