Show BORDEAUX STOPS LATE TUBER ROT destructive disease of potatoes can be Colit controlled rolled by thorough spraying SELLING VALUE IS LOWERED all Regi dins are subject to ailment when moist cool weather prevails during growing season sections section affected v pep d by the united st D P e of the ine destructive lute late blight of potatoes which in addition to attacking the tops causes a rot of the tubers c con a m be controlled control lid by b spraying vi with ith b bordenuk bor 0 denux x mixture department circular late rote might tuber rot hot of the potato by george K X IC link and F P C melr meir recently recel itlY issued by the united states department of agriculture dp describes bribes tile the disease mid arid means of I 1 J 6 e ai 17 77 I 1 spraying potato vines in field with bordeaux mixture combating combat lii it tile rot decreases the value of potatoes s and often lenis lends to their complete decay in held field in transit or in storage sto nine changes into decayed mass in tile early curly staves i of tile dili disease enc lie tul ersi lire are with ith brownish or ir purplish spots which later be beronio corrie durker and finally gnall ln all purplish lour lilick in advanced Minced nd stag tapes the tuber sometimes changes into it a wrinkled vrin kled inns this rot fungus opens the nay ay for bac banterla terla and an other fungi that work ork m re rapidly all potato growing regions are subject to the disease when hen very nials bolst t cool wen tier prevails during the growing ng tt rt occurs frequently in evere bevere form in the new R land states adjacent canada an and the alie iu ill ret get sound und and less lesi frequently though often in severe turm form in new york tork new jersey pennsylvania ohio michigan wisconsin minnesota iowa in the mountain districts dl of if the eastern and western states and it in florida on the early crop insure control in field since the tuber rot impairs germin tion the chances elin nees of securing a rood good stand are greatly increased by planting only disease free seed but tile the only method to insure control in tile the field Is by spraying with b bordeaux mixture 5 pounds of copper sulphate 5 pounds of stone line lime fio 50 gallong ns of writer water to set get good results tile the plants loo bond he sprayed thoroughly and frequently quent ly so that mey lie will mill at fill all times be covered with it a llila film filin of spray mixture it Is not adl to dig a field while tile the soll soil Is wet et hut but nt at times it may be necessary to to do so in III order to save ave a part of the crop though the chances of losing loing much of it are gr great at if tubers in transit or storage are kept dry ary and tit at between 31 df irreas arid and 40 degrees decrees F the he disease will develop little or not at fill all coples if abe circular inov inny be liml lot free by writing tn department bif r agriculture D C |