In March, 1947, we supplied Dr. Diller with one hundred seedlings, one
or two years old, of our best stock, for underplanting in two of these
selected sites, fifty seedlings each, namely on the estate of Mr. E. C.
Childs at Norfolk, Connecticut, and on lands of the T. V. A. at Norris,
Tennessee. Our best wishes for a successful blight-resistant future go
with these little trees.

_Grafting Work._ We are continuing with our method of "inarching" young
"suckers" from below a blighted area into the trunk above the lesion,
the diseased tissue of the lesion being first cut out. This method (see
Brooklyn Botanic Garden Chestnut Breeding Project. 35th Annual Report of
Northern Nut Growers Association for 1945. pp. 22-31--1945) is entirely
successful in case we desire to preserve partly resistant hybrids of
good parentage for future breeding and for scions. (Figs. 1 and 2) But
inarching of the native chestnut is for the most part unsuccessful
because the fungus grows too rapidly and girdles the stem, killing the
parts above before the inarched tips of the suckers can take hold. There
seems to be a certain relation between the amount of disease resistance
in the tree and the possibility of restoring it to health by the
inarching method.

By the common ordinary cleft-graft method, using Japanese, or better,
Chinese stock we are adding to the supply of our most desirable hybrids.

_Insect Pests._ The spring canker worm, _Paleacrita vernata_, has not
been destructive either in 1946 or 1947 and no special preventive
measures have been taken. Japanese beetles have done a little damage.
This year the first one appeared July 11. We find the best method with
these is to pick them off at dusk after they have settled themselves for
a night's sleep, dropping them into kerosene oil. Under these conditions
they will usually slip readily off the leaf into the oil. One thing I
should like to emphasize (which probably others also have noticed) is
that new beetles keep coming, day after day. Apparently the adults are
issuing from the ground all summer. Last year I found a few Japanese
beetles in November. So one must keep continually on the job all through
the season. This summer (1947) we have had a spray program of three
sprayings, August 15, 30, and September 10, with "Deenate" (fifty
percent DDT) to destroy the chestnut weevils which appeared for the
first time rather extensively in our Hamden plantations last year. (See
E. R. Leeuwen;