PROGRESS OF FIELD WORK.

A more or less definite division has been maintained between the

slightly infected Western portion of the State and the badly infected

Eastern portion, known respectively as the Western and Eastern

districts. In a previous report it was stated that in the Western part

of the State the blight had been eradicated to the extent covering

nearly one-half of the area of the State. This area so far as is known

to date has been maintained free from the disease. In a few cases new

infections were found which have been removed. It is important to note

in this connection not only the fact that the progress of the disease

has been checked in Western Pennsylvania, but that we have without much

doubt prevented the blight from gaining a foothold in Ohio, and nearby

portions of New York and West Virginia.

In the Eastern District since January first of this year, the field

work has developed almost entirely into a campaign of utilization, no

rigid sanitation work having been conducted except for the protection

of chestnut orchards and nurseries.

Final report of the Pennsylvania Chestnut Tree Blight Commission · 第 10 / 145 题