220 SLUGS, FLUKES, EELWORMS, ETC. 



very serviceably, as it is mainly in the surface of the 

 land that the wormlets, which have left the plants as 

 they matured, lie. This treatment should be carried 

 out in autumn, and (if the next crop is of a kind liable 

 to infestation), in the next spring cultivation, rich 

 manure given to the crop. It is most desirable that 

 this should 7iot be of stable manure, which, it is very 

 possible, may contain Eel worms, but rather of guano 

 and superphosphate. 



The point that one kind of crop (liable to infesta- 

 tion) may take it from preceding Stem Eel worm 

 presence is very important. 



Clover after Tulip-root, or Oats after stem-sick Clover, 

 should he most carefully avoided. Barley appears to be 

 perfectly free from infestation, therefore is useful in 

 rotation. 



Special applications which have been found most 

 serviceable as manure in the preparation of the land, 

 or as dressings to bring an infested crop over attack, 

 are sulphate of potash alone, or, as a mixture, with 

 ■sulphate of ammonia and phosphates. 



In one special case reported of Tulip-rooted Oats in 

 Midlothian, in 1888, a top-dressing of about 1 cwt. 

 per acre of sulphate of potash was given, with the 

 result that tbe disease disappeared, and an excellent 

 crop was cut. 



In another instance regarding Tulip-rooted Oats (in 

 fields from which specimens of stem-sick Clover had 

 been sent me in the previous year) the manure applied 

 ■consisted of phosphates, ammonia, and potash, when 

 sown, at the rate of 3 cwt. per acre. This produced a 

 very luxuriant growth, with the exception of a sandy 

 knoll. These knolls are noted as being especially 

 subject to Tulip-root. 



As a remedy for " Clover sickness," produced by 

 Eelworms, the experiments of Mr. J. J. Willis, at 

 liothamsted, Herts, have shown the application of 

 a mixture of sulphate of potash, 3 cwt., and sulphate 

 •^of ammonia, 1 cwt., per acre, to have an excellent 



