The care of wounds in the treatment of shade trees for borers

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wy UNITED STATES D&PARTMENT OF AGRICULTURE
BUREAU OF ENTOMOLOGY
WASHINGTON, D. C.

2

January 15, 192%)

orest Entomology Brief 53.

i]

The CARE OF WOUNDS IN THE TREATMENT OF

The removal anc destruction of insect infested and decaying
wood is essential to the continued strength of trees attacked by
borers. This work should be thoroughiy done, cutting cut ail wood
showing borer galleries or decay. The wovnd.or wounds should then
be cleaned and thickly coated with a water-proof preservative,
such as a mixture of ecual parts (by weight) of asphalitum and
crecsote,one-fourth creosote and three-fourths coal tar, or a
good white lead paint, These meterials muss not be applied so as
to come in Contact with the freshly cut edges of the living bark,
where a shellac should be used.

Following the above treatment, the trees should te invigorated
as much as possible by the application of fertilizer and plentifuily
supplied with water. This stimelation is best given in the spring
and ought not to be used when freeZing weather approaches,

At intervals the treated wounds must be exemined to determine
their condition, and when necessary fresh coatings of preserva-—
tive should be applied.

WILLIAM MIDDLETON,
Specialist in Shade-Tree Insects.

Aporoved:
#, C, CRATGHEAD,
Entomologist in Charge of Forest Insect investigations.

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