NINETEENTH ANNUAL MEETING. 169 



self-boiled lime-sulphur was an effective remedy for brown- 

 Tot and scab or black-spot. A combination of the self-boiled 

 lime-sulphur and arsenate of lead proved to be a combined 

 remedy for the brown-rot, scab and curculio. 



On a block of Waddell peaches the yield was increased 

 100% by two applications of the self-boiled lime-sulphur. 

 Four applications of the lime-sulphur and arsenate of lead 

 •combined on a block of Elbertas increased the yield of mer- 

 chantable fruit ten fold. No injurious effect on the fruit or 

 foliage resulted from the treatment. On the New York mar- 

 ket the sprayed fruit sold from \2 l / 2 c. to 50c. a crate more 

 than the unsprayed fruit, this difference alone being enough 

 to pay the cost of the treatment several times over. 



A West Virginia orchard of 15,000 trees was sprayed 

 with self-boiled lime-sulphur under the speaker's direction. 

 As very little brown-rot occurs in that section the treatment 

 was made for the scab disease alone. A small block of trees 

 was left unsprayed and 86% of the fruit from these trees 

 was so badly affected with scab as to be unmerchantable. 

 None of the fruit sprayed twice with self-boiled lime-sul- 

 phur was badly affected and only 1.3% of that sprayed once 

 was badly affected. However, the block sprayed only once 

 had enough scab to somewhat injure the market value of the 

 fruit, so that two applications are desirable. These results 

 show clearly that two applications of self-boiled lime-sulphur 

 will completely control the scab disease even in situations 

 where 86% of the unsprayed fruit is destroyed by it. 



Courses of Treatment Recommended. 



Scab Treatment. For the treatment of peach scab alone 

 where brown-rot does not occur, spray the trees with 8-8-50 

 self-boiled lime-sulphur about one month after the petals 

 fall and again three to four weeks later. In mild cases one 

 treatment thoroughly applied about a month after the petals 

 drop will so nearly control the disease that a second applica- 



