OCR Text |
Show COST OF SPRAYING. Rome people In Utah continually harp upon the cost of spra) Ing nnd urge ns nn excuse for not disinfecting their orchards that they cinnot afford the expense Whenever and whet ever the Item of cxpene has been carcfull) noted the mutter has shown to be In considerable In a bulletin from the New Mexico station the cost of spraying spray-ing Is given They found the cost of a barrel of Paris green mixture ready for use tn be 4'i cents, the cost ot n bntrel of arsenlte of lime rendy for use, 2, cents, and the cost of n barrel of nrscnlte of sodu rendy for use, 4C cents On the whole the arsinltc of soda proved the most satlsfactor) The tests showed that the codling moths de-stro)eel de-stro)eel from CO to 95 per cent of the total crop of orples produced on un-sprayed un-sprayed trees, Tho amount of fruit saved by spnjlng varies with the amount of crop On trees which were carrying a very light crop the sprn)lng did llltlo good On trees bearing a full erop th percentage of sound apples on spra)od trees was large, leaching 9S per cent on n tree spn)ed eleven times It was found that ns a commercial proposition the sprn)lng paid except In the case of trees earning a very small crop The l'astcm method of making two early spra)lngs Is not satisfactory In New Mexico, but, as ln Oregon and Utah the greatest damage Is done to late apples and late In tho season, and spraying ns often ns once In three weeks throughout the eason appears from the report to have been necessary for satisfactory results. It was founl that the greater part of the worms which entered the apples did not enter through the cnl)X. Tills also agrees with observations made In Oregon. Ore-gon. It was also found that trees may be seriously Injured or even killed by pouring pour-ing a considerable quantity nf the spraying mixtures upon the ground nbout the base ot the trees. |