What is hurting my dogwood

Garden Forum » Pest and Diseases in the Garden Forum » What is hurting my dogwood « Previous    Next »

Author Message   Ernief  Supporting Member My Weather My Garden Posted on Monday, August 20, 2007 - 07:35 pm EST :    Can any one tell me what is attacking my dogwood and what to do.http://i168.photobucket.com/albums/u185/ernief55/crystals037.jpg http://i168.photobucket.com/albums/u185/ernief55/crystals036.jpg thanks, Ernie Ernief - New Hampshire, Zone "5b"   Luis_pr  My Time Posted on Tuesday, August 21, 2007 - 02:24 am EST :    Ernie, it looks like lichens. They grow on trees, rocks, the side of homes, etc. Lichens are harmless per se.... they are a combination of an algae plant and fungus. You can see them in various shades of yellow, gray and green. In small areas like yours, they can be ignored. But lichens covering large areas of a tree would indicate that the tree is in trouble but from something other than the lichens. For example, trees that have no flare as the trunk enters the ground will develop problems as they age because they are planted too deep so the presence of l-a-r-g-e areas of lichen would be a warning sign that the tree is stressed. You may want to take a small sample in a sealed transparent plastic bag to your local Agriculture Extension Service / universities for proper analysis. Luis Luis_pr - Hurst, Texas, Zone "USDA 7b/8a"   Growit  My Favorite Photo My Weather Posted on Tuesday, August 21, 2007 - 05:15 am EST :    It is hard to see what you are showing us Ernie. Is it something growing on the trunk and branches or has it been chewed? If it is chewed both rabbits and deer like the bark of Cornus. Growit - Hampshire, Zone "8/9"   Ernief  Supporting Member My Weather My Garden Posted on Tuesday, August 21, 2007 - 08:32 am EST :    What you are seeing are where small pieces of the bark have fallen off. It looks like something has gotten underneith and chewed there. The the bark strips away and falls off. This is near the bottom of the dogwood. Ernief - New Hampshire, Zone "5b"   Loretta  Supporting Member Posted on Saturday, August 25, 2007 - 09:47 pm EST :    A few things come to mind. This might also be a borer such as dogwood borer. I see possible exit holes on the first picture but that could be woodpecker holes. The larvae eat the cambium below the bark and eventually the bark lifts off. See if there is a squiggly surface to the exposed wood. I think I can see them faintly Otherwise, there is something called Dogwood Anthracnose where cankers form on the wood and the bark lifts off. Do you see any symptoms on the leaves? Anthracnose causes leafspots. If there was a rabbit or deer eating the bark, then the bark would be missing, not falling away. There are a lot of unhealed wood cuts in the area of the damage and that is a way for both pest and disease to enter. You might want to clean up some of the cuts to give the bark a better chance at healing. There is too much branch left on some of them. Here is a pruning link. Loretta - NJ, Zone "6"

Add Your Message Here Post: -Color- Black Red Green Blue Yellow Purple Orange Cyan Gray White -Font- Arial Courier Symbol Times Verdana -Size- Smallest -2 Small -1 Normal Large +1 Largest +2 Username: Posting Info: Only registered GardenBuddies can post. If you do not see your post the way you intended it to look in the preview screen then you made a mistake. Please correct it before posting. Remember the only way to link to an image is the following: \imagelink{Http://www.yoururl/yourflower.jpg} Password: Options: Enable HTML code in message Automatically activate URLs in message Action: or

Topics

Legal

Pass Through These Garden Gates ---------------Administration---------------- F.A.Q's Report Bugs and Fixes Suggestions and Comments Test Post Area --------------Pastime Favorites-------------- Crafts and Hobbies Garden Recipes Home Repairs and Questions Lifestyles of Gardenbuddies My Favourite Book Photography and Software Subtopic of the Month Who Am I? ----------------In The Garden---------------- Advice and Makeovers in the Garden Annuals and Perennials in the Garden Forum Aquilegias in the Garden Forum Archives in the Garden Assignments in the Garden Birds and Their Environment in the Garden Forum Bonsai in the Garden Bulbs in the Garden Campanula in the Garden Clematis in the Garden Container Gardening in the Garden Dahlias in the Garden Daylilies in the Garden Decorating in the Garden Delphiniums in the Garden Forum Edibles in the Garden Euphorbias in the Garden Ferns in the Garden Fuchsias in the Garden Geraniums in the Garden Grasses in the Garden Greenhouses in the Garden Hellebores in the Garden Herbs in the Garden Heucheras in the Garden Hibiscus in the Garden Forum Hostas in the Garden Indoor Plants in the Garden Irises in the Garden My Journal in the Garden Forum Nature in the Garden Orchids in the Garden Penstemons in the Garden Peonies in the Garden Forum Pest and Diseases in the Garden Plant and Seed Resource in the Garden Ponds and Waterfeatures in the Garden Roses in the Garden Salvias in the Garden Shade in the Garden Shrubs in the Garden Soil Amendments in the Garden Starters in the Garden Forum Succulents in the Garden Trading Plants and Seeds in the Garden Trees in the Garden Tropicals in the Garden Vines and Climbers in the Garden Wishes in the Garden -----------Gardenbuddies Galleries----------- Déjà Vu Gallery Garden Gallery House and Town Gallery Identify This Plant Gallery Meeting Gardenbuddies Gallery Noah's Ark Gallery Social Gallery Vacation Gallery