A. Airoldi & Associates http://www.newenglandtree.com Planting, Pruning, and Tree Preservation Tue, 07 Feb 2012 22:02:46 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Rhizosphaera Needle cast (Rhizosphaera kalkhoffi) http://www.newenglandtree.com/2011/02/22/rhizosphaera-needle-cast-rhizosphaera-kalkhoffi/ http://www.newenglandtree.com/2011/02/22/rhizosphaera-needle-cast-rhizosphaera-kalkhoffi/#comments Tue, 22 Feb 2011 16:05:11 +0000 Andrew http://www.newenglandtree.com/?p=486 Rhizosphaera Needle Cast is a fungal disease commonly seen on Colorado Blue Spruce trees. Infection takes place during wet springs (as during 2010) although Symptoms, which begin as small black spots on the underside of the foliage first appear the following spring. Needles will become discolored and ‘cast’ of the tree in late summer. This disease infects lower branches first and slowly moves up the tree.

If you feel your Spruce trees may be infected with RNC please contact a certified arborist for a free inspection and consultation.

]]> http://www.newenglandtree.com/2011/02/22/rhizosphaera-needle-cast-rhizosphaera-kalkhoffi/feed/ 0 Hemlock Woolly Adelgid http://www.newenglandtree.com/2009/10/04/hemlock-woolly-adelgid/ http://www.newenglandtree.com/2009/10/04/hemlock-woolly-adelgid/#comments Mon, 05 Oct 2009 00:08:31 +0000 Andrew http://www.newenglandtree.com/?p=336 Hemlock woolly adelgid on hemlock branches

Hemlock Woolly Adelgid remains dormant but will become active and resume feeding and reproducing through the winter months. If left uncontrolled HWA will eventually cause premature death to Canadian Hemlock (Tsuga canadensis) trees. HWA can be controlled through the use of foliar sprays and systemic insecticides.

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