SPRAYING 245 



only the quantity of arsenate of lead should be reduced to 2 

 pounds for every 50 gallons of spray. 



The fifth spraying, which is like the third, is a preventive against 

 the various fungous encroachments, and also destroys the larvae of 

 the San Jose scale and other scale insects. 



The sixth spraying should be made between the first and the 

 fifteenth of August with the full-strength Bordeaux mixture and 

 2 pounds of arsenate of lead added to every 50 gallons of the 

 spray material. This application will control bitter rot, apple blotch, 

 and also the lesser apple worms, or side worms, as they are com- 

 monly called. 



Spraying schedule for apples recommended by the College of 

 Agriculture, Cornell University. Dormant spray. Lime-sulphur 

 (32 degrees Baume) diluted 1 to 8 for the San Jose scale, oyster- 

 shell scale, and blister mite ; for bud moth add 2 pounds arsenate 

 of lead to 50 gallons of mixture. Apply when the leaf buds begin 

 to show green. 



Summer sprays. I. Lime-sulphur (32 degrees Baume) diluted 

 1 to 40 for apple scab ; add arsenate of lead, 2 pounds to 50 gal- 

 lons, for bud moth and case-bearers. Apply when the blossom 

 buds begin to show pink. 



2. Lime-sulphur (32 degrees Baume) diluted 1 to 40 for apple 

 scab ; add arsenate of lead, 2 pounds to 50 gallons, for the codling 

 moth. Apply when the last of the petals are falling. This is the 

 most important spray for the control of the codling moth and 

 should be thoroughly applied. 



3. Lime-sulphur (32 degrees Baume) diluted 1 to 40 for apple 

 scab; add arsenate of lead, 2 pounds to 50 gallons, for the codling 

 moth. Apply three weeks after the petals fall. 



Note. Aphis, which may be detected by the curling of the leaves, should 

 be sprayed as soon they appear with a nicotine solution properly diluted for 

 foliage spraying. For woolly aphis, besides spraying the entire tree with a nico- 

 tine solution, remove the soil for a depth of 3 inches and a radius of 3 feet 

 around the base of the tree. Saturate well with the nicotine solution twice as 

 strong as used for summer spraying, and then replace the soil. 



Winter strength of commercial lime-sulphur is a dilution of 1 part solution 

 to 10 parts water. 



Full-strength Bordeaux is the 3-3-50 formula. The arsenate of lead 

 recommended should contain 1 5 per cent arsenious oxide. 



