151 



ing with the Bordeaux type of nozzle, using a 250 or 300- 

 pound pressure for the codling moth. I don't know how 

 that situation is with growers here, but we have had just as 

 good results where we have used 150 or 125 pounds pressure 

 on the codling moth and scab, and better results so far as 

 burning is concerned. 



QUESTION: Did you ever use 80 pounds? 



PROF. FARLEY : Yes, we have used 80 poimds and not 

 had perfect control, but very good control. 



]\IR. FROST : That brings a point I have never heard dis- 

 cussed, but which I believe is very important. I have had 

 some, of the poorest results in foliage spraying where the 

 men have been too thorough, much poorer than where they 

 have not been thorough enough. It hasn't been due to bad 

 burning, but to bad eating and I have some cases where the 

 men tried to be especially careful and they have drenched 

 the trees so much that the poison was all washed off. 



]\IR. FARRAR : If you have a peach orchard and oak 

 woods are near by with gypsy moths moving out, what treat- 

 ment can you give the gypsy moths to keep them from mov- 

 ing into the orchard ? 



PROF. FARLEY: We have no gypsy moths in Jersey. 



:\IR. WILFRID WHEELER : Treat them the same way 

 you do the army worm, by plowing a deep furrow next to 

 the woods on the outside of your orchard, and then the gypsy 

 moths in crawling on the ground, will collect in the furrow. 

 Be sure that J;he steep side of the furrow is against the field. 

 If the soil is at all loose they will keep slipping back, and as 

 they get into the furrow they should be sprayed with kero- 

 sene. Also. Tarvia is one of the very best things. Any 

 •stiekj^ substance will prevent them getting over the furrow. 

 If they do get in the orchard. I don't see any remedy but to 

 spray the trees thoroughly, and if you have a very bad infes- 

 tation, start the furrow afterwards. 



SECRETARY BROWN : How much arsenate of lead can 

 you use on peaches? Can you use over three pounds? 



MR. WHEELER: Peaches never burn with five pounds. 



