Discussion on Prof. Riley's Paper. 205 



least one-half. The fumigation should be kept up for about one- 

 half hour. 



Mr. Hubbard, of New York — Arsenical sprays are largely used 

 in our state, and without iiarm to man or trees. 



Vice-President Munson, of Texas — The ordinary fruit-grower 

 fails to see his potent but insignificantly small enemies. He, there- 

 fore, neglects to use remedies. Fungi can generally be destroyed 

 by the same agents which will destroy insects. Spraying is the 

 best method. There are a number of instruments used for spray- 

 ing; probably a French instrument is the most perfect. The de- 

 sideratum is a perfect spray. It must be ^fog, and no drops of the 

 mixture should be visible. Every pest from a mildew to the scale 

 oan be destroyed by careful spraying, and yet no injury result to 

 fruit or foliage. 



Mr. Ohmer — The Dayton, Ohio, spraying apparatus I referred 

 to is the invention of a tobacconist, who first used it for moistening 

 his tobacco before working it. The spray from this instrument is 

 as fine as the dew-fall, and may be freely applied without danger. 



The President — A cyclone nozzle can be applied to almost any 

 instrument. The codling moth may be destroyed by means within 

 the reach of all industrious orchardists. 



Mr. Stevens, of Texas — By proper industry and skill we may 

 master such pests. 



Mr. Rudisill, of California — The reason that the curculio is not 

 found in California is probably due to the fact that our climate per- 

 fects the insect at a season in which there are no fruits in condition 

 for it to feed upon. 



Mr. Masters, of Nebraska — There are insects of the weevil 

 family resembling the curculio, which the investigator may easily 

 mistake for it. 



Mr. Munson — We have a new insect pest in our Texas nurseries. 

 It is a small green beetle, and is very destructive, but may be de- 

 stroyed by the use of arsenical sprays. 



Mr. Munson, of Texas, presented the following protest, and 

 asked that it be spread upon record : 



We, as members of the American Horticultural Society, hereby place on 

 record our protest against the introduction of political questions at our meetings . 



