Concord, Mass.
1911.
June 15
(No 4)
[June 15, 1911]

Moth conditions

  Late in May "wilted" caterpillars prepared by Reif
were put out by Richardson in three places in our
woods viz. on Holden's Hill, in Birch Island woods
and at the rear of the Ritchie place. They were also
liberated elsewhere in Concord. Richardson tells me
to-night that they have spread the disease
and that it is fairly raging in some localities
especially along the old Bigelow road about a mile
south-west of here where the gypsy larvae are
"dying by myriads". He adds that on Tuesday last
(13th) he & Reif visited Holden's Hill and found
large numbers of wilted and dying caterpillars there.
I saw more to-day either there or at Richie's place.
I did not visit the Birch Island woods.
In many places the gypsy larvae were not
feeding & otherwise inactive but all looked healthy.