EXPEKIMENT STATION BULLETINS. 527 



Just as the Blosso:*is are Falling, make another spraying like the 



above. 



About 10 Days or Two Weeks Later, it may be necessary to make 

 another spraying like the two previons, but this will depend upon the 

 weather conditions and the amount of rot and mildew prevalent. If later 

 sprayings are thought to be necessary, some material should be used that 

 will not stain the fruit, such as weiik copper sulphate solution. (See 

 page 536.) 



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 to The Entomolo- 

 gist, 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 paste, or half as much of the 

 powder, or ^4 pound of arsenate of calcium, to every 50 gallons of the 

 Bordeaux, if early in spring. Later use less poison. 



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

 deaux and an arsenical poison during the middle of July, before the twen- 

 tieth. 



For Leaf-Hopi'Ers, sometimes incorrectly called "Thrip," spray with 

 nicotine-sulphate, using 1 pint to 100 gallons of water with 2 or 3 pounds 

 of soap, or with kerosene-emulsion while the insects are young, and before 

 they can fly. Try to hit each insect, for only those hit by the spray are 

 killed. Later in the fall, clean up all rubbish and burn after cold weather 

 sets in. The leaf-hopper passes the winter in rubbish. 



For Climbing Cut-Worms, use bands of cotton batting, or wool from 

 the fleece, or bands of sticky mixture. On tender growth the latter can 

 be put on strips of paper; also sprinkle poisoned bran near the bases of 

 the vines. (See page 539.) 



(iENERAL TKKATMENT FOR CURKANTS AND GOOSEBERRIES. 



San Jose and European fruit scale are often found on currants, al- 

 thougli seldom on gooseberries. Inspect carefully for them. If found, 

 spray before growth starts with strong lime-sulphur. 



Just as tue Leaves are Extandixg, spray with dilute lime-sulpluir or 

 Bordeaux and 2 pounds of arsenate of lead paste or half as much of the 

 powder, or % pound of arsenate of calcium, to every 50 gallons. 



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



If worms trouble after this use pyrethrum or hellebore. 



Leaf Bugs or Aphius may appear, either one or both together. When 

 they do, spray with nicotine-sulphate while the bugs are red and wingless 

 and before the leaves have become curled. Spray upward from beneath. 



Gooseberry Mildew is a fungous disease that is especially troublesome 

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

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

 10 days to two weeks until near picking time. 



