252 FUMIGATION METHODS 
find the gas a sure remedy for woolly aphis and other 
insects. —D. M. Moore, Moore's Nurseries, Utah. 
Opinions of orchardists on fumigation in New South 
Wales.—Bevan Brothers, of Galston, write W. J. 
Allen, the government expert, as follows: ‘‘ We have 
fumigated some 1,500 trees since this time (July) last 
year, and the results have been very satisfactory. 
Without doubt nearly every scale has been killed, the 
trees are healthy, and the fruit clean. We formerly 
sprayed from three to four times a year, tried several 
preparations, and never got thorough satisfaction out. 
of any. Occasionally patches of live scale do remain 
on trees that have been fumigated, but, as far as we 
can judge, this has only happened where fruit with 
scale on it has pressed against the side of the tent, or 
wheze the dose of acid has not been quite sufficient to: 
poison the scale on the lower limbs. 
‘*Several of our neighbors having seen the results. 
on our trees have had tents made, and set to work 
cyaniding. ‘This is surely the best proof of its value. 
You are aware that we use a cheap tent made of calico, 
costing wholesale about 1s. 3d. per yard, double width. 
So far this has answered admirably. ‘Tents 1o feet in 
diameter by 12 high cost from 30s. to 35s. This re- 
duction in the cost of the tent really made fumigation 
possible to us. We have had to thank your depart- 
ment for many things, but for none are our thanks 
more deserved than for teaching us cyaniding.’’ 
R. L. Sheppard, Wesbank, Emu Plains, says in 
same report: ‘‘I was prompted to enter upon what 
seemed at first rather an arduous undertaking, viz., 
the fumigation of my citrus trees for the destruction of 
