1618 Report of Farmers' Institutes 



Apple (Scab.— Apply Bordeaux or diluted Lime-Sulphur after blossoms 

 separate but before they open; again soon after petals fall and repeat three 

 or four weeks later. 



Apple Cankers. — Cut off all badly diseased branches, remove diseased areas 

 upon large branches or trunk, and disinfect wounds and paint them. Annual 

 spraying with fungicides and removal of diseased branches soon greatly 

 reduces this trouble. 



Do All {^praying Thoroughly 



For details of above consult Circular No. 58, New York State Department 

 of Agriculture, to be distributed at this Institute. 



INSECT ENEMIES AND FUNGOUS DISEASES OF THE GRAPE AND 



THEIR CONTROL 



Steely Flea Beetle. — Spray with 3 pounds of Arsenate of Lead and 1 gallon 

 of molasses in 50 gallons of water when the insects first appear. Tlie larvae 

 appear on the foliage about July 1 at the same time as the beetle of the 

 grape root worm. At this time spray as for grape root worm. 



Grape Root Worm. — The adult is a reddish brown beetle which appears 

 about the first of July and eats chain-like holes in the leaves. Eggs are laid 

 for about six to eight weeks after the middle of July. They hatch in two or 

 three weeks, drop to the ground and feed upon the roots. At this time, soil 

 should be cultivated deeply. Spray foliage with 3 povmds of Arsenate of Lead 

 and one gallon of molasses in 50 gallons of water, when beetle?; begin to feed. 



Rose Chafer. — Spray, when beetles appear, with 4 pounds of Arsenate of 

 Lead and 12 pounds glucose in 50 gallons of water. Clean culture and deep 

 cultivation the last of April or first of May. 



Grape Leaf Hopper. — Small yellowish white bugs with wings, when adult. 

 Adult passes winter in rubbish and in fence rows. They appear as soon as 

 leaves open, feeding upon the under side. Eggs are laid about June 15. Spray 

 with " Black Leaf 40," one part to 1,600 parts of water early in July. Spray 

 under side of foliage thoroughly. 



Black Rot. — Spray with 4-4-50 Bordeaux Mixture preferably before rainy 

 periods, when the second and third leaf is forming. Again soon after the 

 blossoms fall and later at intervals of ten days. Spray with higli pressure 

 and thoroughly cover fruit clusters and tips of vines. If late summer is wet, 

 the above spraying should be followed by two more, using ammoniacal copper 

 carbonate at intervals of ten daj's. 



Powdery Mildew. — Sjjraying for l)lack rot Mill control this fungus. 



yrrrosis or Side Arm Disease. — iJcniove and burn all diseased portions, 

 training new arms from the main stem to take their places. If the trunk of 

 the vine is infected at the ground there is no cure and the plants should be 

 dug and burned. 



For further information see Circular No. 58, State Department of Agricul- 

 ture, Albany, N. Y. 



