75 



us of using Bordeaux and lime-sulfur. 



President. Another chance for questions, I think Mr. 

 Castner will be willing to answer any questions on this sub- 

 ject, 



Mr, Castner, I would say this: A good many people 

 don't think that they have got the anthracnose, but I have 

 discovered a good deal since I was here this spring. They 

 may not know what it comes from, but if they look around 

 they will find a dead spot, canker ; that is what is known as 

 anthracnosse, 



Mr. Carr, Will lime-sulfur help that? 



Mr. Castner, No, it has no effect. It takes the Bor- 

 deaux in the fall. It is a disease that works in the winter, 

 after the rain starts. 



Mr. Carr. You spray immediately after picking the ap- 

 ples? 



Mr. Castner. Before the rains come. 



President. May we hear from Mr. Frost on spraying 

 with both lime-sulfur and oil and Bordeaux? 



Mr. Frost. I would rather hesitate to say anything on 

 this subject because I feel rather at sea myself in regard to 

 a substitute of lime-sulfur for Bordeaux. As you know, in 

 1910, we had a very wet season in the spring and a good 

 deal of injury to the fruit and the plan was to put it on Bor- 

 deaux largely for that injury; but it was found in a great 

 many cases that in the valleys and near the seashore the in- 

 jury was much worse than on the top of the hills, where there 

 'was a free circulation of air. It was also found that many 

 trees not sprayed at all had injured fruit almost as much as 

 the sprayed trees. I made a great many notes in 1910; T 

 thought that I would correct myself in 1911 ; but during the 

 past year a great deal of fruit has been given to me that 

 was sprayed with lime-sulfur and it was quite as seriously 

 injured during the past year. Also I saw a gerat deal of fruit 

 that was what I should call sun scalded. AVe have had two 

 exceptional seasons, 1910 and 1911, and I think it is very 

 difficult to state just what the lime-sulfur does here in Mas- 

 sachusetts and what the Bordeaux mixture may do. I am 

 inclined to think, though, that you will use both materials 

 and that you will use Bordeaux for some varieties of some 

 diseases and lime-sulfur for other diseases. I am also con- 

 vinced that the mixture of lime-sulfur with the arsenate 



