Hemlock Tree – White Things At Base
Q: We have a ten-year-old hemlock tree. We noticed a few tiny white things at the base of the needles on some branches but not that many. I’m worried these could be hemlock woolly adelgid. The temperature got down to 1° F this past Christmas eve. Would that have killed any insects on the tree?
A: Like all living things, hemlock woolly adelgid can be killed by cold temperatures. A high percentage of these sucking insects will die when temperatures drop to -4° F, but some will survive. These individuals will be the basis of a big population surge in spring. I have details on how to control adelgids here.
-
-
-
1
Is white sap on fig fruit harmful?
-
2
Longleaf Pine – Identification
-
3
Poison Ivy Oil – How Long is it Potent?
-
4
St Augustine – Mowing
-
5
Bottlebrush Buckeye – Scorched Leaves
-
1
Jelly Bean Plant
-
2
Geranium – Overwintering
-
3
Poinsettia – Forcing to Bloom for Christmas
-
4
Grass – Mixing Fescue and Rye
-
5
Bronze Beauty Cleyera – Fertilizing
-
