Show treat potatoes before planting solution of corrosive sublimate mate or formaldehyde Is effective experiments tl have vl shown show that potatoes cun cull be treated for disease control in tile the winter while mille they ore are dorin with to no delay to in it in the spring according to C I 1 groves graves plant pathologist tit at tile the kansas agri cultural C ollege college graves therefore recommends that hint sted sed potatoes be treated rented us as soon as practical there have been developed in tile the past few years two standard treatments for tile the control of seed borne diseases of tile potato until both are equal ly efficient in disease control they are tile the corrosive sublimate treatment and tile the hot lot formaldehyde treatment corrosive sublimate treatment prepare a solution f for the corrosive conos lve sublimate treatment by mixing thoroughly four ounces of corrosive sublimate in 31 30 gallons of witter w liter corrosive sublimate Is deadly poison all and must be kept away from children all and aul animals nials it will not injure the hands the sublimate solution will C corrode metals therefore barrels wooden tubs or concrete vats should cuntin contain tile the treatment rient should not be cut before boffie they ure are treated best results tire obtained when they tire are left in ili the solution for one and art one half hours according to tit alie plant pathologist the solution should not ile be used for 11 more lore then three hatches batches of potatoes unless the solution Is strengthened each cacti time little corrosive sublimate should be added ot at the rate of one half to five of tin nn ounce to each 30 gallons of water after cacti treatment hot formaldehyde treatment for the lot liot formaldehyde treatment mix two pints of full strength formal in ili 30 gallons of water un like the corrosive iori oile sublimate treatment tills solution does not weaken with use and no addition of formaldehyde need ile be added treatment to maintain the alie original strength for maldeline mald elide la Is also it dt di adly adl poison the solution quickly th diles les from the silt face of the tubers und tile lie treated seed Is not poisonous the hot formaldehyde treatment re quires from three to four minutes ili ID it a heated solution ol ution to ag degrees 1 F care should lie be taken that ali it the lie tuber do not come in Kinti itt with tile the als aldi 11 and wl bottom of tile treating vat say sai professor Iro fessor graves |