4 
the presence of sclerotia bearing conidia identical with those of the 
metior 
garding the boxes pedeiously mentioned it is only necessary to state 
that the mycelium spread through t € = af-mould, and also attacked the 
apple tree root and the seedlin e 
At the close of the experiments, a all the material, with the exception of 
microscopic preparations, was carefully destroyed by burning. 
PREvENTIVE MEASURES. 
Notwithstanding the fact that the New Zealand fungus proves to be 
distinct from the Éuropean root fungus, yet the general habit, mode of 
attack, and strueture of the two are so similar, that the same methods of i 
—Ó— ing the disease will apply to both. 
to the habit of the fungus in penetrating and spreading in the 
eile’ sane of the root of its victim, cu actically outside the 
u elium ; 
a 
of the disease, no efforts should be spared in the way o et enting such 
meling, when the presence of the fungus is once detect 
Undoubtedly the most frequent and rapid mode of AOE is by 
n i ood method o 
into the diseased portion, and not outside it. This method, which was 
first suggested hy Hartig, for the purpose of preventing the spread of 
terranean fungi in the German forests, cannot be too strongly com- 
trees, and especially stumps and roots, should be at once destroyed by 
burning. The soil surrounding rae npe should be burned after 
the eue have been removod, so as estroy the smaller diseased 
s of the root that remained behind. 
eme preventive method, which has proved of service in pesas 
is to lay bare the trunk as far below the surface of the soil as can be 
done without injury to the tree, and to densely coat the exposed die: 
and adjoining soil with powdered sulphur. "This should be repeated 
when the channel round the trunk becomes filled up with earth. If, as 
stated by Mr. Wight, the New Zealand fungus first attacks the trunk 
just below the surface of the soil; this method should prove beneficial 
if persevered with 
tagnant water should n = allowed to remain in the soil, as this 
favours the ee of the 
n those cases ae ue fungus has completely devastated 
large aei it is probable that such will be deserted as sci prse the 
trees being allowed to lie and rot, and the fungus to spread in the svil. 
This is disastrous, being in fact a — for the doveli and 
