48 FIRST AXNUAL llEPOKT OF THE STATE ENTOMOLOGIST. 



been preserved in good condition, while adjoining ones not tlins 

 treated have been destroyed. 



Prof. Cook has used it, both in its crude state alone, and as com- 

 bined witb sofc-soap, for the protection of radishes from the rad- 

 ish-fly, xiiithomyia rapham (seepage 199 where, under the remedies 

 for A. raphani, his experiments are given). While the experiments 

 are reported as entirely successful, it does not appear from the ac- 

 count whether the application of clie carbolic acid served to destroy 

 the eggs and the larvse of the fly, or whether it prevented the deposit 

 of the eggs. 



I have made use of the acid when quite diluted — one part to one 

 hundred of water, and have recommended its use to others, for ridding 

 potted plants from the small larvae and worms having their abode in 

 the soil to the great injury of the roots : in all cases when tried, as 

 far as I have learned, the application has been successful. 



A correspondent of the Country Gentleman (vol. xxxviii, p. 180) 

 commends it very highly for removing vermin from animals.* He used 

 it in the form of carbolic soap prepared by James Buchan & Co., of 

 New York, and by simply washing the hair of cattle with a lather 

 from the soap, he was always able to kill the vermin and the eggs with 

 which they were infested. It also killed those on hogs. A lamb suf- 

 fering from a bad attack of the "fly," so that a large part of its back 

 and one side was a mass of living larvae, was cured by two applications 

 of carbolic ointment and lard oil — the oil being used to dilute the 

 ointment so that it could penetrate the wool. At the same time that 

 it killed the larvae, it also served to prevent fresh attack and to heal 

 the sore. The correspondent concludes his statement of the beneficial 

 effects of the carbolic treatment, with ''I know of notliing as valu- 

 able to a stock-raiser as the preparations of carbolic acid." 



For insecticidal purposes the crude carbolic acid should be used, as 

 being much less expensive than the crystals. It can be purchased of 

 the principal druggists in our larger cities. 



9. Soluble Phenyls as an Insecticide. 

 This material has been brought to the notice of economic entomolo- 

 gists mainly through the experiments reported by Miss Ormerod, of 

 England — made directly by her, or upon her suggestion. It is manu- 

 factured in England, under the name of " Little's Soluble Phenyle," 



*The Pediculidpc, or lice ordinarily infesting domestic animals, belong largely to the 

 genus Hsematopinus. Of these, //. t'tfw^j and ^. ei^rysfez-WMS are parasitic on both cattle 

 and horses, often becoming very abundant and of serious annoyance and injury to them. 

 n. suis, as its name imports, a large species of nearly one-eighth of an inch in length, oc- 

 curs on the liog. IT. pil{ferus lives on the dog. 



