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could not remember any case in which the spray had been applied under 

 his personal direction where it had failed to destroy the scale. The 

 applications in his work have been made with a blast atomizer, such as 

 is illustrated in his bulletin, No. 74, of the State experiment station of 

 Virginia, or with the Deining pumps, using their mixing apparatus for 

 the diluted applications, and for the pure applications the Vermorel 

 nozzle, with one- twentieth -inch aperture. He added that in one 

 instance he had an entire nursery sprayed with kerosene early in the 

 present summer, and that no harm resulted except to a few rows where 

 a storm came up before the kerosene had evaporated. These were 

 somewhat burned, but at this date the fact can not be noticed, and the 

 stock is in as good condition as the rest of the nursery. He intends 

 pushing work with pure kerosene the coming fall and winter. 



Mr. Smith said that his experience since the last meeting in the use 

 of kerosene had been, on the whole, extremely favorable, many barrels 

 of the material having been used in New Jersey during the winter of 

 1897-98, and in general with very good success. One correspondent 

 sprayed his entire orchard once in January, and part of the worst 

 infested trees had been sprayed the preceding September. The twice 

 treated trees were pears, and they bore a fair crop this year, while the 

 scales were so reduced in number that only a few could be found during 

 September of this year. Several hundred peach trees were sprayed in 

 January, and these included trees that had been set out in the spring 

 of 1897, and all ages from that up to bearing trees. Of the bearing 

 trees none were injured, and they bore a full crop this year. The trees 

 are in excellent condition as a rule, although there has been consider- 

 able rot and some yellows. The scale is still present on some trees, but 

 there has been a very general reduction, and he has advised against mak- 

 ing any treatment on these trees during the coming winter, since the scale 

 can not increase next year to such an extent as to harm them. A large 

 orchard of pear trees covering 8 acres solid had every tree sprayed thor- 

 oughly with undiluted kerosene, and it had a full crop this year, and no 

 trace of injury done by the oil. Of the one-year old peach trees that 

 were sprayed, about one-half of the Mountain Eose were killed, but no 

 other variety was affected, so far as could be seen. An orchard of 2,000 

 peach trees, thoroughly encrusted with the scale so that it had begun to 

 die, was drenched with kerosene during the winter and all the trees 

 were killed; but the farmer himself in this case says that he is quite as 

 ready to charge the scale as the kerosene with this effect. He has seen 

 absolutely no reason to change the recommendations that he had pre- 

 viously made. He yet believed that the proper use of kerosene is one 

 of the best measures that we have at our disposal, but he was not ready 

 to say that it is the best. He was strongly inclined to believe that he 

 had found something better and less likely to be harmful in actual use. 



Mr. Marlatt stated that the tests with pure kerosene made by him 

 and reported at the previous meeting of the association had been 



