85 



Mr. W. H. Owen sprayed a row of badly infested trees in his peach 

 orchard on Catawba Island with a resin wash, but the formula con- 

 tained more fish oil than the one above quoted, and caustic potash was 

 substituted for caustic soda. 



The trees were sprayed April 15 and 22, and the fruit buds appar- 

 ently sustained no injury, as a good crop of peaches is growing. It 

 was estimated, after examining the trees June 11, that 9b per cent of 

 the scales had been destroyed. 



The results of the limited number of experiments this year indicate 

 that these washes can be used in Ohio with good success, if climatic 

 conditions are favorable, and if the preparation and application is 

 careful and thorough. Whether orchardists will be able to duplicate 

 the results of these tests as satisfactorily on a large scale and under 

 different weather conditions can only be demonstrated in this State by 

 the work of another season. 



Basing the cost of materials on quotations received from wholesale 

 firms in Columbus, the lime, sulphur, and salt wash can be prepared 

 for a little over one cent per gallon. The resin wash is considerably 

 cheaper, unless a more concentrated spray is desired. These estimates 

 do not include the cost of preparing the wash, which takes considerable 

 time, and should the materials be bought at retail prices the expense 

 would be increased. 



After the conclusion of Mr. Burgess's paper, it was voted to defer 

 discussions until all of the papers on this subject had been presented. 

 Mr. E. P. Felt then presented the following paper: 



EXPERIMENTAL WORK IN NEW YORK STATE AGAINST THE 



SAN JOSE SCALE. 



By E. P. Felt, Albany, iV. Y. 



The apparent complete destruction of the San Jose scale following 

 the spraying operations of the writer last December is in marked con- 

 trast to some results obtained in other sections of the State. The 

 work was done December 11, 11)01. The day was an ideal one. there 

 being very little or no wind most of the time and the temperature 

 ranging from about 30° F. in the shade to 68 in the sun. The trees 

 were dry. and. despite the fact that there had been considerable cold 

 weather and much snow the previous week, even the very bases of the 

 trunks of the trees were exposed and dry and the insecticides could 

 therefore be applied to the greatest advantage. The sun shone brightly 

 most of the day. and it was one which would be characterized as a 

 • Irving day. The apple orchard, where most of the work was done. 

 consisted of over 60 young trees, many of which were in an exceed- 



