You may contact your local Colorado Parks and Wildlife Office. I would appreciate any help you can give me. The amount lost to, and the seriousness of, porcupine damage is difficult to estimate with reasonable accuracy. Would you please let me know if you think this sticky stuff may work? Tree bark damage is not only unsightly, but can be deadly to a tree. Other porcupines find refuge in caves, hollow logs and old buildings. You can put the electric line just above the top of an existing fence so the porcupine hits it with his nose or it can be close to the ground. Squirrel damage can be identified by the smaller scrape marks from their teeth, which are 1.3 to 1.7mm wide. How can I trap or discourage him from this? Porcupines and squirrels damage trees by eating the bark. To a porcupine, your rose garden, berry patch, or vegetable garden, is simply irresistible. Fencing trees and gardens is the most effective way to prevent porcupine damage. On larger trees that may be difficult. No need to register, buy now! Porcupines in Utah will damage fruit trees, vegetable gardens, and some Often they will feed at or near dusk and early in the mornings. Porcupines can cause significant damage to pine trees. They may have traps to loan. Girdling of the tree bark, if severe, will kill the plant. I tend to see a lot of damage on maples, though I’ve also seen squirrel damage on galls or callus tissue of almost any hardwood species. Voles, rabbits, and squirrels are also known to do damage. Squirrels prefer hardwoods. The extent of the damage depends on how hot and how long the fire burned. Porcupine and squirrels feed on the bark of trees, stripping it from branches and main stems. Their contact information is at the URL below.http://cpw.state.co.us/aboutus/Pages/ContactUs.aspx If you have additional questions get back in touch.Good Luck,Marvin Reynolds. weaken the tree and make it more vulnerable to damage from diseases, insects, and birds. There are products you can apply to damaged trees that seal the outer bark to prevent further damage and infection. Our trees do a good job of letting us know the severity of the damage. They cause wounds and serious injury to the tree if they girdle the tree by removing the bark all the way around the circumference of the trunk. Porcupine damage to red pine. Most mammal damage to trees is from either: Browsing - feeding on buds, shoots and foliage ; Bark stripping from main stems or branches - gnawing or rubbing. It can completely or partially consume them, dry them out and scorch them, or simply singe them. Squirrels prefer hardwoods. I tend to see a lot of damage on maples, though I. Porcupine will climb trees, strip bark, and break branches, though the damage is typically more severe than what you are experiencing. January 2, 2010 By Tech Support Leave a Comment. They should also be contacted as they may have information to help with your wildlife related issue. Porcupines can cause significant damage to pine trees. Multiple trees or an entire area can be enclosed in a single fence. Dogs never seem to learn to avoid them, so keep dogs confined or on a leash when a porcupine is in the neighborhood. Porcupine commonly climb up trees and strip the bark. A porcupine has stripped the bark from this Scotch Pine (Pinus sylvestris) in Acadia National Park, Maine. Some of them prefer to live on trees to avoid their natural predators. Because porcupines primarily target wood, most people are unaware how much they like succulent plants. The porcupine is the only native North American mammal with antibiotics in its skin. Using an electric fence to protect trees is also an option. In cooler weather, a porcupine feeds on conifer needles and gnaws on bark, which can cause conflict when it chooses to dine on a property owner's favorite oak. Damage. For the fruit trees, about 6 ft dia, and for the pine trees, you'd need 8 to 10 feet dia. Porcupines eat herbaceous plants, inner tree bark, twigs, and leaves (when present). They active all year long, primarily at night. Grooved tooth marks approximately 5 mm wide are characteristic of porcupine damage. Porcupines feed on salt and salt residue, and have been known to chew on leather items and even the brake lines of vehicles. The annual loss was estimated at 1.2 percent of the annual growth in northern Minnesota (12). / porcupine killing trees. The size of the tooth marks left in the wood is the key. Are there live traps available for loan through your office? http://icwdm.org/handbook/rodents/ro_b81.pdf, http://cpw.state.co.us/aboutus/Pages/ContactUs.aspx. The damage has been mainly to crap apple trees and blue spruce. Stripped bark exposes trees to disease, and those affected often die. Fencing small tree plantings, orchards, and gardens is effective in reducing porcupine damage. Porcupines are not the only animal that damage trees in the winter months. Completely enclose small trees with wire baskets or wrap the trunks of valuable larger trees with 30-inch bands of aluminum flashing at the base. Susceptible trees include pine, spruce, poplar, elm, fruit-bearing trees and numerous shrub species. Porcupines can cause significant damage to personal and public property by feeding on trees. Rabbits and deer are often blamed for this damage when many times it … Porcupine is doing a lot of damage to my pine trees. 2) groundhog - We often forget that groundhogs can climb trees, and like tree squirrels will gnaw and strip bark like you are experiencing. If both porcupines and squirrels can feed on bark in the crowns of trees, how do you know which one is doing the damage? If both porcupines and squirrels can feed on bark in the crowns of trees, how do you know which one is doing the damage? To prevent further damage and can open trees up to diseases and infestations... 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