21S 



Bulletin 192. 



The Missouri coal tar T\as not so tiiick as the New York tar 

 we used, hence it was more easily applied with a brush and a 



thinner coating on the 



bark resulted ; it also 

 dried out sooner and 

 was not sticky as long. 

 Thirty-four trees were 

 treated, six of which 

 had been treated each 

 year for three years 

 previously with jS^ew 

 York tar. 



AYe caged twenty- 

 one trees with the 

 wire netting accord- 

 ing to Stedman's di- 

 rections, as shown in 

 figure 51, leaving a 

 space of from one- 

 half inch to an inch be- 

 tween the wire cylin- 

 der and the trees. It 

 required pieces of the 

 n e 1 1 ing about eigh- 

 teen inches square, and 

 small wires were tied 

 around eacli cylinder 

 in four or live places to 

 keep it intact. A very 

 liberal amount of cot- 

 ton was stuffed in at the top, and we examined the cages from time 

 to time to see that they kept in working order. We found these 

 wire protectors were more easily applied but more expensive than 

 the wooden ones. 



The wooden wrappers (see figure 54) were thin veneer boards 

 about ten inches wide and eighteen inches long, with three small 

 wires fastened through holes near one edge. They cost about three 



■a© ^; 



■.■*T. «• 



'.« jSc'.*^ 



53. — Stedman's wooden torapper in position on a 

 peach tree in our ex2')erimental orchard. No 

 more effective loith us than a cheaper paper 

 protector. 



