OCR Text |
Show Horticultural METHODS OF SPRAYING TREES Maine Experimental 8tatlon Finds Combination Which May Be Used With Perfect Safety. In responso to numerous requests for information on tho subject of preparing pre-paring and use of lime-sulphur in orchard or-chard spraying, tho Maine agricultural agricul-tural experiment station baa Issued a bulletin which goes Into the matter quite fully. It saysn part: During tho past few years there has been a markod change In tho methods of spraying applo trees, tho most Important Im-portant being a qulto general kubsti-' tutlon of lime-sulphur for bordeaux mixture as a fungicide. There la probably prob-ably no better material than bordeaux' mlxturo in use today tor the control of apple scab, but unfortunately it la frequently tho cause of serious dam-ago dam-ago to both follago and fruit If the weather conditions are right The circular cir-cular gives a list of a large number of varieties of apples with the relative resistance, of each to this spray. It Is not recommended that orchardlsta who have been using bordeaux mixture mix-ture successfully on resistant varieties change to lime-sulphur. On the other hand, thoae who have experienced any difficulty with It or who are growing varieties known to be susceptible to BBBBJflnRBjBBBJ flflflflflufuw w&&' P'l&Hfl IBBjBBjBBjBBjBBjBBjBBjBBjfjfj Svv -)XVbb1 BBBBBBB?i'1't" iHs! BBBBBBBBBBBBBBBBBBBM s V SwStVvr i BBi BBBBBBBkriPNH'"'' f m BBBBjT';BB t'.' BkaBB I ";-' 'T?i I BrffBBBBBBBl W JHHMBaHMHMBMBK ifi'lAtjJK " gTWBBJBJEJBljBJBMpBJrf- c V ' JPsi FHBWaiBBBfSK a f'l&iflr' tmwmttimm iiu mi I !. .QjB Sifting Llmo Wash to Prevent Clogging Clog-ging Nozzle. this spray, or who aro uncertain whether or not bordeaux mlxturo may bo safely used on tho varieties they have, aro strongly advised to use lime sulphur. This Btatlou has 'found that this latter In combination with arsenate arsen-ate of lead may bo UBed with porfect safety on tho Bon Davis and Baldwin applo trees, while bordeaux mlxturo applied at the same time and In tbo same manner resulted In Injury to follago foll-ago or fruit or both. For tho small grower or tho man with but few trees It Is doubtless moro satisfactory to purchaso one of tho standard brands of commercial lime sulphur concentrates, but tor one with an orchard of any size It Is entirely en-tirely another matter. He should purchaso pur-chaso tho raw materials and prepare tho concentrate at home. Tho circular circu-lar In question glvcH detailed Instructions Instruc-tions how to proparo homo-cooked ltmo-Eulphur, how to teBt this with tho hydrometer to dotermlno Its density dens-ity nnd gives tnblcs for dilution of different dif-ferent densities for dormant sprays and for summer Bpraying. This latter Information Is also valuablo to the man who purchases ono of tho commercial com-mercial brands of Uroo-sulphur. Tho density of this also Bhoiild bo determined deter-mined In the 6amo manner and diluted according to tho tables. |