112 THIRTY-FOURTH FRUIT-GROWERS' COXVEXTIOX. 



to California, and I am going to ask a gentleman who was intimately 

 associated with the reasons which brought about that caase to tell yon 

 just why it happened. Ladies and gentlemen, it is a pleasure to present 

 to you Mr. Strong, for many years horticultural commissioner of Los 

 Angeles County. This gentleman was the first, to my knowledge, who 

 had sufficient moral courage to break away from the old orthodox 

 traditions of fumigation, and it is a pleasure to me to think that I was 

 associated with him. Incidentally. I might tell you the result of that 

 experiment was a complete success. 



MR. STRONG. About three years ago. Mr. Jeffrey and I were on ' 

 the horticultural commission of Los Angeles County. We were having 

 a good deal of trouble with fimiigators and with fumigation. I had 

 studied it, so had Mr. Jeffrey. We had got to a point where we came to 

 the conclusion that neither one of us knew an\'thing about it. So we 

 knew of no better method of finding out something about hydrocyanic 

 acid gas than to ask the Department of Agriculture to take it up and 

 make a thorough investigation. So Mr. Jeffrey wrote to the Depart- 

 ment of Agriculture, asking them to send men out here and take up the 

 scientific part of the Avork. We could kill the scale all right, but we 

 didn't know why we killed it. We didn't know what dosage was 

 required ; we didn 't know whether we were wasting the cyanide, or 

 what we were doing ; we didn 't know whether there was too much leak- 

 age in the tent, or whether there was any ; we didn 't know the desired 

 time, the amount, or the length of time that a tree should be covered. 

 So we got the Department of Agriculture to take it up. We got Senator 

 Flint, also Congressman McLachlan. to work to that end. and they did. 

 The result was that a year ago last winter they secured an appropriation 

 to carry on the work, and Mr. Woglum was sent out here to take it up. 

 I am glad that he has progressed as well as he has. but still there is 

 plenty of room for him to go ahead. I am very much in s\TQpathy with 

 the work, and hope it will be successful all the way through. 



MR. MASKEW. Now. we will come to the next point in the paper, 

 and that is the question of dosage. There are fumigators who are 

 gifted with the ability to estimate accurately the dimensions of a tree, 

 and they have achieved almost marvelous results. But they are very 

 few. and you will all agree with me that it is absolutely impossible for 

 those few gentlemen to fumigate all the trees in Southern California. 

 What is still more important, this gift is not knowledge, and they can 

 not transmit it to others. Therefore, we set ourselves to work to give 

 you a dosage based on scientific principles. And now I am going to 

 ask Mr. Goodrich, the horticultural inspector of Ontario, to tell you 

 something about the vagaries of dosage. I had the pleasure of going 

 through the orchards in his district, and the splendid condition in 

 which they are convinces me that he must have had cinite an experience 

 in fumigating in the past. 



MR. GOODRICH. It seems strange to me that I should be called 

 upon to speak upon dosage here, when Mr. Woglum. who has the scien- 

 tific principles worked out. is unable to give you a dosage that he can 

 guarantee will kill your scale. I have had experience in fumigating- 



