220 



Bulletin 253. 



The plat consisted of 100 rows, 53 vines per row, vines 10 feet apart, 

 rows 9 feet. The area was divided into nine different plats, with one 

 check row between each plat. Each plat was again divided into two 

 parts. The purpose of such division was to test a few of the less 

 important treatments in view of suggestions for future work, and also 

 to make the tests comprehensive. The map, therefore, is made with 

 such divisions, and the results are tabulated accordingly. The treat- 

 ment of Plat 2 (sprayed and treated exactly as Mr. Lansing did last 

 year) is as follows: 



Fig. 1 84 — A good grape hoe. 



The soil is plowed from the rows in the spring, and the rows worked 

 with the grape hoe. No further treatment is given until July, when the 

 soil is plowed back to the row, and left until the following spring. The 

 vines are sprayed three times: First, before the buds swell; second, 

 before the blossoms open, third, after the blossoms fall. At each spray- 

 ing two small Vermorel nozzles were used on each side of the machine, 

 one nozzle for each wire. Plat i received the same cultivation as Plat 2. 



The rest of the plats were sprayed as follows: 



First, May 3-9. 



Second, June 7-8. 



Third, June 26-27. 



Fourth, July 9-10. 



(Note: Rows 35-44 also sprayed July 16), 



