14 



stop. They dusted and sprayed again. The men that did that 

 saved the crop. The ones that did not suffered severely from 

 rot. We did the same thing with apples. The growers who 

 put on a late spray on the apples in August, w'hich they ordi- 

 narily do not apply, had fruit free from the sooty blotch and 

 fungus. In other words, the spray schedule that any section 

 might have should be a basis for guidance. That is all. You 

 have to vary that somewhat according to the season, and our 

 growers put on an extra spray. 



Mr. Donald MacRae. Have you seen any orchards that 

 have entirely controlled the different fungi and insects by the 

 dusting method? In Massachusetts this last year, — what I 

 mean to say, been controlled entirely without any wet spray? 

 What has been the result? 



Mr. Blake. The question is, whether dusting will control 

 all of the insects and diseases? No, I do not think so. I think 

 we have to depend upon our wet spray in the winter leaf curl. 

 Personally, where the rot is serious and where we have peach 

 scab as serious as we had in southern New Jersey and south, 

 I think a wet spray, just as the fruit sets, before the shooks are 

 off, is a good thing too. Then, I think you can dust with good 

 results. Most of our growers thus far have put on one or two 

 winter sprays and have then dusted, but I do not believe that 

 you can depend upon dusting to control leaf curl. 



Mr. Van Meter. What are your best controllers for cur- 

 culio ? 



Mr. Blake. What are our best measures for control of cur- 

 culio? First, a little as to our experience with curculio. We 

 find that orchards that are surrounded by grass lands give us 

 more trouble for curculio than where they are surrounded by 

 cultivated area. 



It is a common statement that curculio is more prevalent 

 where orchards adjoin woodlands, and that is true to some 

 extent, but they seem to be able to harbor very well in grass 

 land. 



In the second place, we believe that thorough summer spray- 

 ing just at the time the fruit is setting and about ten days to 

 two weeks after is the most effective means to control curculio 

 with us. 



