76 



of lead, which is made in the east, is very dangerous to han- 

 dle and I am advising many of the people that if they want 

 to spray with lime-sulfur and arsenate they should do it in 

 two applications. Spray first with arsenate of lead alone 

 and then lime-sulfur afterwards. 



There is a brand of arsenate of lead made on the Pacif- 

 ic Coast which I understand is not affected by the lime-sul- 

 fur when mixed. If you are getting good results from ar- 

 senate of lead and Bordeaux, I am inclined to think it is 

 wise for you to use it in the future. If not, try lime and 

 sulfur and arsenate of lead and try it both ways, in a mix- 

 ture and separate. It may be that the injury this year was 

 all due to climatic conditions. In my own case I will spray 

 late in the season, will not spray in the hot sunlight or in 

 the middle of the day. 



President. Any further questions of the speaker? 



Mr. Wilder. I would like to ask Mr. Frost which he 

 uses for the San Jose, the oil or the lime-sulfur, in the early 

 spring? 



Mr. Frost. I always use the oil until I get the scale un- 

 der control, and then I use the lime-sulfur part of the time ; 

 but I feel that the oil is the much better insecticide for the 

 scale than the lime-sulfur and I know it is much easier to 

 handle. 



Mr. Morse. I would like to ask Mr. Frost if it doesn't 

 make a difference what kind of trees he puts it on, as to its 

 effectiveness. On a peach or some others lime and sulfur 

 may do the work, but when it comes to the young growth of 

 apple trees it is a little different and there I think oil will 

 do better. 



Mr. Frost. I believe that lime-sulfur will kill every 

 scale you hit, but I find it very difficult to get the men to do 

 thorough work, and even if there are only a very few scales 

 left, they breed very fast in a dry season and there is a 

 good deal of danger; but I think it is immaterial on small 

 treefj as to which material is used, so long as every part of 

 ■-■ vthe tree is covered. i;v-> iilixuif' I ih>\(i ;-;.,>/ i^.ii- 



T^-^ Mr. Adams I would like to^y^¥ ii-^b^W^^i^hhim^as 

 -^^^' fungicide, as lime-sulfur? '^^'^"/^ ^''i'>. ^'^J*-- <^:* )Iu-;ifi[T. 



Mr. Frost. On the fungicide effects of oil I am hardly 

 prepared to make any statement, but a great many of us do 

 feel that oil acts as a sort of tonic to the tree. We know it 



