Insect & Disease Conditions Update
The 2014 summary of
New Hampshire Forest Health activity is available on-line: http://nhdfl.org/library/pdf/2014newsletter.pdf.
It is packed with information about pests affecting New Hampshire’s forest and
neighborhood trees. Insects, diseases and weather don’t observe state
boundaries—the information will be of particular interest to those living and
working near NH borders.
Of special interest
to Maine: the emerald
ash borer update is full of great information about NH’s innovative
response to this invasive pest; the red pine scale find in Portsmouth is a
head’s up for southern York County; winter moth defoliation has been noted in
New Hampshire for the first time (it has been causing significant defoliation
in Maine for three years). There are also details of a study of
imidacloprid movement in maple sap (providing a greater incentive to learn to recognize Asian
longhorned beetle, so it can be detected early, minimizing impact); hemlock
woolly adelgid biocontrol rearing in the forest and plantations and
the regional Caliciopsis canker study initiated by New Hampshire.
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