-7- 



devastato his orchard in the faco ''f a good crop of apples. 



Liquid lime sulfur 2 gallons and Puratized Agricultural Spray 

 1 pint in 100 gallons of v/atcr are considered the best scab eradicant 

 fungicides. Last year at I'.altham, Wealthy trees in full bloom v;erG sprayed 

 twice with Puratized (applications one v/eek apart) with no harmful results. 

 Liquid lime sulfur is toxic to apple pollen and should not bo used when 

 the trees are in full bl;om. The scab eradicant applications can be applied 

 if necossarj' late in the blooming period v;ithout harm. Some foliage injury 

 from liquid lime sulfur can be expected. 



Eradication of scab is best acconplishod v;hen the primary scab 

 mold is young and v/ith tv;o applications about 7-10 days apart. The sprays 

 should be applied in drying weather. Unless scab infections are cleared 

 up as they first appear, the ultimate result is likely t :> be more scab, 



E. F. Guba 



KILLING -kTITCH GRJSS BY SPRAYING 



Witch grass is such a conraon and persistant p< st in orchards 

 where cultivation is practiced that it is ali.iost accepted, like death 

 and taxes, as inevitable. Its elimination by cultivation is possible 

 but the amount of work and expense involved is so great that as far 

 as orchards arc concerned it is seldom "licked", With labor scarce 

 and high priced, some other moth >d for combating this pest is desirublo. 



Spraying is rapid and easy. Every fruit grower hus spraying 

 equipment and is familiar \vith its use, A spraying method for killing 

 witch grass soems 1 'gical and desirable. Last sumr.ier a S':ries of plots, 

 thickly covered with v;itch grass, were sprayed vdth Ammate or with 

 Atlacide, a commercial weed killer containing sodium chlorate and a 

 deflagration agent, (SodiuiTi chlorate is inflammable, and becomes extremely 

 so in contact with dry organic matter. It should be used with great 

 care unless mixed with seme chemical called a deflagration agent to 

 reduce the fire hazard,) The sprays v;ere applied on several different 

 dates, at different concentrations, and at different ai.iouiits por 100 square 

 feet. It was foui'id that both sprays v/ere most effective v.'hen applied 

 about October 1, At this time either Aiiimate applied at 3/4 pounds per gallon 

 and 1 gallon per 100 square feet or Atlacide applied at 1|- pounds per gallon 

 and 1 gallon per 100 square feet, gave practically 100 per cent kill to 

 witcii grass. 



