II Oct., 1909.] Potato Scab. 671 



Additional Material for iO-Jf. iterator. 



White deal, 6 in. x l-in. ; 5 20 ft. 



VVliite deal, 6-in. x ^-in. ; 8 IS-ft. (No 15 ft. lengths required.) 



Oregon, Gin. x 1^-in ; 1 3-ft. 



Oregon, ,S-in. x 1 m. ; 2 15-ft. 



Hardwood, 4-in. x 2 in. ; 2 12-ft., 1 7-ft. 



Chain, 2()-ft., 1 ;;, -in pitch. ( No. 4.1 link.) 



Slats and attaehmeius, l7, for No. 45 link. 



The additional cost of tlie material in jNlelbourne would be ^8 12s. 6d., 

 of which _^i 13.S. 6d. is for the elevator. 



Notes. 



The ordinary horse-works and chaffcutter are suitable for cutting and 

 filling silage. 



The silo should be well white-washed inside with a thick wash made 

 of lime and skim milk. This can be done each evening after filling, the 

 silage serving as a scaffold. It is also advisable to lime-wash again when 

 emptying. 



The crop should not be cut until it has reached the proper stage of 

 maturity. 



Trample the silage as much as possible, especially round the sides, 

 keeping the centre high. 



Fill in not less than 5 feet and as much as 12 feet per day. 



\\'hen filled, put on a 12-inch layer of chaffed straw well wetted, and 

 load over whole surface with 3 to 5 tons of earth, stones, or other con- 

 venient material. 



It is better to chaff the green stuff on the dav that it is cut. 



Keep the bottom hoop clear of earth and rubbish. 



See that the bottom of each stud is supported by a brick or suitable 

 stone. 



POTATO SCAB. 



Mr. J. G. Gregory, of Mildura, writes : — 



" I have just seen the report of the Conference of Potato Growers and 

 Departmental Officers, and thought you might like to hear of my experience 

 with Potato Scab. Some ten or eleven years ago, I was growing a good 

 manv potatoes here, and unknowingly planted some scabby seed. I 

 planted again of the scabby produce, and the crop from these was covered 

 with scab. As seed was very expensive that year, I tried to find a remedv, 

 and in an American work I read the report of Professor Bolley's experi- 

 ments (North Dakota Station). His advice was to soak the seed for one 

 and a half hours in a i in i,oco solution of corrosive sublimate (Mercuric 

 chloride). This I did, and changed to fresh ground. 



The result was a crop of perfectly clean potatoes, and from that time 

 as long as I continued to grow potatoes I was not afraid of scabby seed, 

 but the land where it was infected was my trouble as I had only 10 acres. 

 I found that after keeping potatoes out of the land for three years the 

 scab germs were still in the ground and very much alive. About this 

 time I read in the Rural New Yorker that, bv ploughing in heavy crops 

 of green-stuff and making the land slightly acid, the scab germs were 

 apparentlv killed. I tried this method, and, to all intents and purposes, 

 it w^as a success, for I could and did grow really clean potatoes on that 

 same ground after I had ploughed in two heavy crops of green-stuff and 

 allowed time for the last to thoroughlv rot." 



