34 
CORN. 
presence on previously-infected land. The Oat-plants sent me showed 
very decided symptoms of diseased growth from Eelworm presence, 
which was mentioned by Mr. Harper as doing great harm to the Oat- 
crops in that district. Further he noticed:—“I find that to grow a 
crop of Bere or Barley, in sowing down grass-seeds, prevents the pest 
on the future lea-crop. I noticed last year my lea-crop continued to 
he affected immediately where it was last sowed with Oats, just as 
straight as the plough goes. I fancied last winter that to plough deep 
might be some help, and have not been so badly affected this year, the 
infestation being more confined to patches.” 
In the following, Mr. N. Coates, jun., writing from Hillesden on 
September 25th, also draws attention to the recurrence of attack, 
which is only too well known often to happen on infested land, 
owing to the remarkable life-powers of the wormlets. Mr. Coates 
desired an opinion regarding treatment of a piece of ground of about 
four acres, part of a sixteen-acre field on which the last three or four 
crops of Wheat and Oats had been a failure. The plants were reported 
to get enlarged at the bottom, and deformed, and after a time to go off. 
This appeared, from description, to be manifestly a case of Tulip-root, 
and the succession of crop noted was—in 1885, Wheat, a failure ; 1886, 
Mangolds, a good crop; 1887, Oats, a failure; 1888, Clover, a good 
crop, mowed twice for hay; 1889, Oats, a failure. 
During July, Mr. George Rodger, of Harelaw Farm, Barliead, sent 
me the following notes regarding prevention of Tulip-root on broken-up 
lea or grass-land, a matter alluded to above also by Mr. Harper as 
requiring attention. Mr. Rodger mentioned that Tulip-root in Oats 
had been more or less in the Barliead district for some time, but was 
kept in check by the practice of manuring the lea or grass-land when 
ploughed for Oats, which had been adopted for over six years. This 
was to sow from 2 to 3 cwt. of superphosphate and cwt. sulphate of 
ammonia per acre along with the seed; or, before the land was 
harrowed, 1 cwt. nitrate of soda per acre three weeks after brairding, 
where necessary. 
Prof. A. D. Gilchrist, writing from Botliwell, N.B., mentioned that 
some fields of Oats in that district were badly affected by Tulip-root 
(Tylenchus devastatrix), and that the disease appeared to be worst where 
white crops were taken in succession; and a correspondent writing 
from Dalliousie, near Edinburgh, reported Tulip-root disease to be on 
the increase in that neighbourhood, which note confirms the observa¬ 
tion given by Mr. Elder, of Uphall, Linlithgowshire,, last year, of “ a 
great deal of land between this and Edinburgh being infested, probably 
causing a loss of hundreds of acres of Oat crops.” 
Summary. — The foregoing notes are of serviceable interest as 
agreeing incidentally, and in full practice with the points laid down as 
