FAVORABLE EFFECTS OF ALKALIES.

The trees injected with alkalies are all in good condition at present.

An encouraging feature of the experiment with alkalies is that a

number of inoculations on these trees did not take, and on those which

have taken cankers have formed smaller than those on the check trees.

These trees were cut into in April in order to count the number of

inoculations that took, and in a number of cases these cuts have formed

callus.

Final report of the Pennsylvania Chestnut Tree Blight Commission · 第 69 / 145 题