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Show Peach Borers Destroyed by Paradichlorobenzene The use of paradichlorobenzeiie for j killing peach borers has come to be a ' standard practice. There has been j sm;e trouble about selecting the pro;-er pro;-er d -e of this long named chemical, and some damage has rc-ulled from J tiding an overdose. It seems that I Prank II. I '.each of the Ohio experiment experi-ment si iiloti has devised u measuring gau.'e for the chemic.il : It Is quickly made by mains a piece of .monh p:i-er ) 1-1'" lm lies long ii ml Inch-M wide. Draw a Km' cacily tliroiuh the middle uml the Imig way. M.irk It ' j ounce, i Now draw u si-ennd line dividing one ! of these halves equally. N;i;i!e Ibis line -'4 ounce. leil! ll.e aper Into ii i vlinder, lines ' mailing tbe liuurri III I'!'-, tin ! p.r-te I It Into pkire. overlap the cndi ix ncily r of an Inch. The ej Under will hold an ounce of p.iradi' hlorolienr.i ne, known it -i l'DP, by orclia r-list -c j l'l:ii i' rlc c; Under on nny hard flnr-j flnr-j f.n-e uml 1:11 with PI !'. to the line In- dicatii.g (!: quantity pm iiee.l 1'otir the tine crjstaN of the cheiidcal Into II smilll, w ide 1 1 1 1 1 1 1 1 - I lioltie and eijage the varloin nlnoiint-H nil IL A tile may be u-ci to cut n mark. Northern pinch groweri, Mr. I'.cnch mjj, will laid the gas evolving froiii the chemical most effective If applied nfier September 1 ." and le-lore Octo her lo; in Miiitbem Ohio from October I to I'm- ii half to tin it fourt In ounce of l'DP, on treet tlirce. to live jenrs old. none on )ounger trees. Mature tree six years old and over may he Ireiileil with an ounce. |