438 AN ECONUM/C ENTUMOLOGY. 



barrel adds to the spreadinji^ power of the mixture, and sf)me- 

 what also to its adhesiveiu^ss on ordinary foiiaj^c 



Paris ^reen may he a|)|)ii(.-d diy, iiiidihiiid, on many kinds of 

 j)lants with a duster or any sort oi api>aralus that spreads it over 

 a very large surface. More generally it is mixed with about fifty 

 parts of piaster, llr)nr, liim-, or other ( aiiii r, wliii li s])rcads it 

 over a gicatcr area tiian the iiiidilutcd ])ovv(lcr can be a])plied. 

 ( )f late, dry hydiale oi lime has ixcomc the favorite ( arrier, and 

 i)elter yet are tli<' prepai'ecl limes that (ome in very line, llonr like 

 form. 



I )iy hydrate ol hme is simply lime slaked with jnst enough 

 water to ( rnmble it into a hue, dry |)ou(l(i, and when this is 

 sci'cened and mixed with Paris green it < an be applied as a fine 

 dnst with fan blowers, sevci'a! kinds of whi( li aic now on the 

 market. y\s to elfecti\'eness, it is e<|nal to a water spray for most 

 purposes, and is more (|iiickly and ( heaply a|)plied, It is not so 

 good whei'e th<- under side of folia'.;e nmst be iea( hed, and, as a 

 whole, ex|)eiiments with watei' and dnst applications made; side by 

 side, have usually shown a balance in fa\or of the water carrier. 

 Put wher(,' walei' is scarce or must be brought from a distance, 

 the dust application will give very good satisfaction. 



Paris green or white aisenic may also be mixed with from fifty 

 to s(!venty-fiv(j parts, by weight, of bran, to attract and kill cut- 

 worms. The latter will eat bran in preference to green vegeta- 

 tion, and therefori' the poisoned bran, moistened with sugar 

 water until it < an be ladled out free from drip, may be used to 

 clear an infested lield before the crop is set, oi' to protect it after- 

 wards. 



f »r:issho|)|)ers have an .abnormal fondness for moist horsc- 

 manmc, and great numbers can be killed olf and cro[)S protected 

 by mixing one pound of the ars(Miic with three; gallons of drop- 

 l)ings, and spreading these where the insects are most numerous 

 or where injury is anticipated. It is better to use small quanti- 

 ties several days in succession than large fpiantitic-s at one lime, 

 because as the material dries out it loses its attraction. 



lioKlraux mix lure is not |)rim,iril v an insect icide, \'et few insects 

 care to eat ;i surface covered with it, and nian\' sc.iles will not set 

 on trunks or branches coated with the material. As against 

 the potato Ilea beetle it is almost a Specific, and there is nothing 

 incjre disc(niraging to the rose-bugs. As against insects it is 



