1900] STEM EELWORM. 37 



A recipe found to answer well in case of attack in " Tulip-rooted 

 Oats " or " Stem-sick Clover " is — sulphate of ammonia four parts, 

 sulphate of potash one part, and steamed bones two parts ; this at the 

 rate of 1^ cwt. per acre, followed up by a dressing of 2 cwt. per acre 

 of sulphate of ammonia. 



The following note of experiment in treatment of Clover-sickness 

 at Rothamsted, which I was kindly permitted to use, showed entirely 

 satisfactory results: — "A mixture of sulphate of potash 3 cwt., and 

 sulphate of ammonia 1 cwt. per acre, was applied on April 3rd." The 

 disease ceased, and the Clover made a very vigorous growth, which 

 was continued markedly in the second crop. Sulphate of iron at the 

 rate of 2 cwt. also answered very well both for stopping the disease 

 and giving good growth ; at the rate of 1 cwt. the sulphate of iron 

 was not so serviceable. 



All measures, whether of treatment of the ground or of liberal and 

 rich manuring, of a nature suited to drive on hearty growth are of use 

 in supporting infested plants if of material suited to their special nature, 

 but nitrate of soda (so far as reports to myself go) has proved nearly 

 or wholly valueless as an antidote to Eelworm sickness.* 



The following notes as to entire absence of any good effect from use 

 of gas-lime as a preventive of Eelworm attack was sent me on March 

 20th from Peaston Bank, Pencaitland, East Lothian, N.B., by Mr. 

 R. Gibson, and, as it is of considerable interest, I insert it in extenso 

 here under the head of Eelworm, adding reference to it also under the 

 head of Tulip-root in Oats. Mr. Gibson observed : — 



"Referring to our correspondence in May, 1897, about Tulip-root 

 in Oats, I promised to let you know my experience of applying gas- 

 lime as a remedy. The field was in Oats last year (1899) after two 

 years' old grass. In the month of February I applied about two and 

 a half tons per imperial acre of gas-lime fresh from the works. I 

 sowed in good order with part Potato Oats and part Hamilton Oats. 

 The result was not satisfactory ; the Tulip-root was there in both 

 varieties of Oats. I left two riggs of ground with no application of 

 gas-lime, and you could not tell the limed laud from the unlimed ; the 

 disease was over all the field, and from this experiment I am drawn to 

 the conclusion that gas-lime is not a cure for Tulip-root in Oats." — 

 (R. G.) 



* The above notes of prevention and remedy are to some degree reprinted from 

 various of my previous publications. As these are known to answer well, and the 

 descriptions are condensed into as short compass as can well be managed for 

 practical use, it has seemed desirable to repeat them somewhat as they stand, rather 

 than merely refer to the previous notices. — E. A. 0. 



