The Diamond-back Moth. 
G17 
do not think this had any direct effect on the caterpillars, but 
has helped the turnips very much. We have also been hand- and 
horse-hoeing as close to the turnips as possible." — J. B. 
" I sowed 1 cwt. per acre nitrate of soda on 43 acres swedes and 
10 acres yellows, and 2 cwt. soot on 1 acre swedes. All have come 
away well, and done better in resisting or rather overcoming the 
damage than what was not top-dressed. Scuffling I think has 
helped crops which were far on by rough disturbance of the leaves." 
—J. A. B. 
" Nitrate of soda, <tc. have been very beneficial ; do not know of 
other remedies having been tried in this district." — D. C. 
" My son, on a farm of Lord Londesborough's, tried nitrate of 
soda with better result by far than his neighbours, who used soot, 
lime, and other manures." — G. C. 
" The best mixture we used was 10 cwt. soot, 8 cwt. nitrate of 
soda, with 1 cwt. sulphate of ammonia, mixed well and sown broad- 
cast by hand, whilst the deiv was on the leaves, 1 cwt. per acre ; we 
also used scufflers with boughs on them through the crops ; also we 
tried quicklime, gaslime, soot in equal parts, 1 cwt. per acre, with 
3 lbs. yellow flowers of sulphur added per acre, but the first mixture 
proved best in checking the spread of the moth." — R. C, for Lord 
Auckland. 
" 1 have tried no fertilisers, but have no doubt but that nitrate 
of soda would help to push on crop and thereby lessen the amount 
of damage. On a light-land farm of mine in the next parish, my 
grieve tied boughs to the front of a horse-hoe and brushed ott" 
numbers of caterpillars, and the tines coming after buried tliem in the 
earth. The fields so done have not suffered much." — J. D. 
" The method I found to answer best at the least cost was using 
a scuffler with thorn boughs attached in front, and set so as to turn 
the leaves completely over ; by so doing it broke the webs and let 
the caterpillars down, and the scuffler buried them." — J. P. D. 
" All the remedy I made use of was to keep going all the horse- 
hocs and scufflers I had all day long. One of my neighbours tried 
trailing a sheep net across his turnip field and then sowing lime, but 
I do not think that his field has recovered more than mine ; he also 
had a net hanging on his larger horse-hoe trailing on the plants 
before the knives ; this acted well, but the pest was about over when 
he tried this."— W. ¥. 
" Tried hot lime, also paraffin and soot, and none of them appears 
to do good, as the caterpillars are fairly secured below the leaves. 
The scuffling of the plants destroys them very much." — J. H. 
" Brussels sprouts attacked. A part syringed with a preparation 
of soft soap and paraffin, five pounds of former and five pints of 
the ktter to 100 gallons of water — result, caterpillars destroyed. 
Remainder soot scattered on the under side of leaves— result as 
above."— M. K. 
'' Several farmers have put in boughs of trees in the scufflers. I 
put in my ploughs a good firm bundle of wheat straw bent down at 
the ends, so as to rub the under part of the leaves without damaging 
VOL. II. T. S.— 7 S S 
