Mr. Sanderson reported that creoline can be used to destroy fleas 

 on domestic animals. 



Mr. Summers stated that thrips had been found destroying carna- 

 tions in greenhouses; also that he had found that burning sulphur in 

 a house was satisfacton^ for clearing it of bedbugs. 



Mr. Fletcher stated that in making the bran mash for destroying 

 cutworms he mixed only enough Paris green with the bran to make 

 it perceptibly green. 



Referring to the best treatment for grasshoppers, Mr. Gillette 

 remarked that the Criddle mixture of horse droppings, salt, and Paris 

 green had not been very effective in Colorado during the past year. 



Mr. Fletcher had found this mixture remarkably effective in Mani- 

 toba. 



Mr. Wilcox cited the fact that at a recent meeting of the Public 

 Health Association in Washington, D. C, a discussion arose as to the 

 value of using hydrocyanic-acid gas for destroying bedbugs. It 

 seemed to be the opinion of the meeting that this was a rather dan- 

 gerous remedy, but very effective. 



Mr. Felt remarked that he has used a full-strength charge for fleas 

 in Albany, X. Y., and had accomplished good results. He thought it 

 well to recommend iron bedsteads for use in houses where bedbugs 

 are present. During recent years a thrips had injured onions and 

 lettuce in New York, and Corythuca irroratalmd caused much injury 

 so chrysanthemums. It is probable that this insect usually lives on 

 weeds. One grower sprayed with a mixture of whale-oil soap, using 

 1 pound of soap to 9 gallons of water, and reported good results. 



Mr. Osborn believed that it was now recognized that the thripida? 

 were, on the whole, destructive and not carnivorous. A few years 

 ago, when he made a statement to this effect, it was not generally 

 accepted, but subsequent observations seemed to show that his pre- 

 vious statement Avas correct. The results of some studies made in 

 1881 showed that these insects had injured 80 per cent of the apple 

 blossoms under observation, in all cases the pistils having been eaten. 

 They also injure clover, and have been found working on strawber- 

 ries in Illinois. This year plants in greenhouses in Columbus, Ohio, 

 had been badly attacked by these pests. 



Mr. Felt stated that he was able to kill fleas with one fumigation. 

 In Mr. Summer's experience a fumigation, using a double strength, 

 had been effective against these insects, but he had obtained satis- 

 factory results by burning sulphur. He considered that great care 

 should be taken to allow a room that has been fumigated with hydro- 

 cyanic-acid gas to air thoroughly before entering it, as some persons 

 were able to stand only a small amount of the fumes. 



Mr. Fletcher remarked that the sulphur fumes would probably be 

 more effective to fleas and their larv?e if the floors were wet at the 

 time the fumigation was done. Mr. Felt stated his belief that sul- 



