Hemlock Woolly Adelgid – Preparing for a winter feast

This close up photo is to show the  presence of woolly adelgid on this hemlock.  The adelgid mass is the white cottony material at the base of the green hemlock leaf, visible at the top center of this picture.  Hemlock woolly adelgid is a winter feeder, so it is gearing up for activity from mid-October to feed on the hemlock by sucking plant sap from the tree.  On heavily infested plants it looks like snow or frost on the tree.  This insect has been in Massachusetts since 1988 and is fatal to hemlocks.  More information from UMASS is available here.  We treat them either with horticultural oil application or by injected the tree with the ArborJet Tree I.V. system.

-Lauren Greenhow, General Manager, GreenHow, Inc. GreenHow.com. Effective Organic and Low Impact Solutions, Lawn Care, Pest Control and Termite Control in Newton and Metro Boston.

Hemlock Woolly Adelgid

In greater Boston the Hemlock Woolly Adelgid has caused a great deal of stress on the hemlock stands often used to divide properties. These hemlock hedges are showing the signs of stress from adelgid infestation that can lead to the death of the tree. The infestation is characterized by the woolly masses on the twigs at the base of the needles. Take care of your hemlocks with the low impact GreenHow Tree Injection service, putting material in the tree to protect the plant.
-Lauren Greenhow, General Manager, GreenHow, Inc.
www.GreenHow.com. Effective Organic & Low Impact Solutions, Lawn Care, Pest Control & Termite Control in Newton and Metro Boston.

Keeping your eye out for hemlock woolly adelgid

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As you clean out your garden this fall, inspect your hemlocks for signs of Hemlock Woolly Adelgid, an insect that causes severe damage to hemlocks. Signs of infestation include woolly masses around the base of the needles. These obvious indicators are combined with a loss of needle foliage in the hemlock.
-Lauren Greenhow, General Manager, GreenHow, Inc.
www.GreenHow.com. Effective Organic & Low Impact Solutions, Lawn Care, Pest Control & Termite Control in Newton and Metro Boston.

Hemlock Wooly Adelgid

Hemlock (Tsuga) woolly adelgids are usually noticed when a hemlock starts to lose needles, or the cottony, white egg masses are noticed on the twigs and leaf bases. They can be treated in early spring with dormant oil to reduce overwintering adults, or spray with insecticidal soaps in June and October. We also use injection systems to inject affected trees with a small amount of systemic insecticide. That gives the tree ongoing protection and minimizes the amount of material used, since it is injected into the tree just behind the bark.
-Lauren Greenhow, General Manager, GreenHow, Inc.
www.GreenHow.com. Effective Organic & Low Impact Solutions, Lawn Care, Pest Control & Termite Control in Newton and Metro Boston.