Ask an Expert is made up of groups and individual experts. Porcupine sign: a) tracks showing drag marks of tail; b) toothmarks on tree limbs. Many people are often surprised to find out that removing tree bark can actually harm a tree. Porcupines occasionally will cause considerable losses by damaging fruits, sweet corn, alfalfa, and small grains. They active all year long, primarily at night. They chew on hand tools, decks, and other wood objects while seeking salt. porcupine killing trees. It can completely or partially consume them, dry them out and scorch them, or simply singe them. On smaller trees you can cover the trunk so they can't chew the bark or climb the tree. 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. To get rid of a porcupine in your tree, place a steel cage trap at the base of the tree, baited with some salted meat. If branches are nearly girdled, they may leaf out in the spring only to have the leaves suddenly wilt and die as hot weather hits because the tree can’t move enough water to keep the leaves alive. Trees with thin, smooth bark tend to be preferred, but any tree could potentially be at risk. PORCUPINE DAMAGE WASTE: SHAVINGS: HIGH DAMAGE: HIDDEN DAMAGE: DAMAGE: SMALL DAMAGE: SMALL DAMAGE: MORE DAMAGE: CLOSE UP: If you are having problems with PORCUPINES and need to deal with a local problem, click on the link below to learn control options. Dogs never seem to learn to avoid them, so keep dogs confined or on a leash when a porcupine is in the neighborhood. Branches that are not completely girdled will continue to grow and callus tissue will begin to grow over the wounds. the porcupine preferred ponderosa pine in the pole class with diameters from 8 to 10 inches (5). On larger trees that may be difficult. Porcupines are not the only animal that damage trees in the winter months. On smaller trees you can cover the trunk so they can't chew the bark or climb the tree. Many trees damaged by fire can re… Trees will die if the damage is severe enough. Anything smaller on the fruit trees, the deer will eat the branches off when they get bigger. Porcupine will climb trees, strip bark, and break branches, though the damage is typically more severe than what you are experiencing. Grooved tooth marks approximately 5 mm wide are characteristic of porcupine damage. Those antibiotics prevent infection when a porcupine falls out of a tree and is stuck with its own quills upon hitting the ground. The size of the tooth marks left in the wood is the key. Porcupine damage to red pine. Electric fences are effective when the smooth electric wire is placed 1 1/2 inches (3.8 cm) above an 18-inch-high (46-cm) poultry wire. Trees are often thought of as towering giant that are difficult to kill. If both porcupines and squirrels can feed on bark in the crowns of trees, how do you know which one is doing the damage? When trying to identify the cause of damage, the most important things to look for are: Form of damage (i.e. Porcupines are not the only animal that damage trees in the winter months. Sometimes they remove large areas of bark on branches as well as on the main stem. It also has information on wrapping trees.http://icwdm.org/handbook/rodents/ro_b81.pdf (Porcupines)Look over the fact sheet and if you still have questions get back in touch.CSU Extension does not have traps. Squirrels prefer hardwoods. Porcupines fall out of trees fairly often because they are highly tempted by the succulent buds and twigs at the ends of the branches. Porcupines are rodents that need to sharpen their teeth, so they may chew on wood in your backyard. Fire can damage and even kill trees in your backyard. Past feeding activities of the North American porcupine (Erethizon dorsatum L.) in an overmature forest were reconstructed using tree-ring dated feeding scars on jack pine (Pinus banksiana Lamb.) Are there live traps available for loan through your office? Damage. Porcupines can cause significant damage to pine trees. While porcupines may be a nuisance to homeowners with ornamental or fruit trees, their presence in the forest improves the function and diversity of these ecosystems. Porcupines feed on salt and salt residue, and have been known to chew on leather items and even the brake lines of vehicles. The damage has been mainly to crap apple trees and blue spruce. Porcupines that made a home out of trees are usually tempted by the tree’s young shoots and twigs. On larger trees that may be difficult. There are products you can apply to damaged trees that seal the outer bark to prevent further damage and infection. January 2, 2010 By Tech Support Leave a Comment. Multiple trees or an entire area can be enclosed in a single fence. The porcupine is the only native North American mammal with antibiotics in its skin. Porcupines love salt and will be inclined to enter the trap as … Squirrels prefer hardwoods. 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. If the damage isn’t severe enough to kill the tree, it will be more susceptible to insects and disease. Some of them prefer to live on trees to avoid their natural predators. Rabbits, mice and voles can cause damage similar to that of squirrels and porcupines, but the damage will be located near the base of the tree instead of in the crown. 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. Damage Prevention and Control Methods Exclusion Fencing small tree plantings, orchards, and gardens is effective in reducing porcupine damage. Girdling of the tree bark, if severe, will kill the plant. The North American porcupine lives in Canadian and Northern American and Mexican woods and grasslands. Written by: Linda Williams, forest health specialist, Green Bay, (Linda.Williams@wisconsin.gov), 920-662-5172, Emerald ash borer new locations in Wisconsin. For the pine trees, my neighbor did his half mile hedge with 6' dia horse fence around his Austrian Pines. Porcupine is doing a lot of damage to my pine trees. Stripping bark can girdle trees, resulting in branch dieback that shows up the year following the damage. Extensive gnawing of branches, twigs and bark is evidence of porcupine attack. Written by: Linda Williams, forest health specialist, Green Bay, (Linda.Williams@wisconsin.gov), 920-662-5172. / porcupine killing trees. Porcupines love rose bushes, pansies, lily pads, all types of berries, corn, and several other garden favorites. Porcupines can cause significant damage to pine trees. Voles, rabbits, and squirrels are also known to do damage. No need to register, buy now! This type of feeding can remove enough bark to girdle the branches or the main stem, causing the tree to die from that point to the end of the branch. How can I trap or discourage him from this? Porcupines and squirrels damage trees by eating the bark. Sometimes they remove large areas of bark on branches as well as on the main stem. Stripped bark exposes trees to disease, and those affected often die. weaken the tree and make it more vulnerable to damage from diseases, insects, and birds. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. Often they will feed at or near dusk and early in the mornings. Using an electric fence to protect trees is also an option. They should also be contacted as they may have information to help with your wildlife related issue. Would you please let me know if you think this sticky stuff may work? On sunny days the pale wood where the bark has been stripped off really stands out in the woods. The amount of damage will determine whether or not the tree or shrub can survive. Stripping bark can girdle trees, resulting in branch dieback that shows up the year following the damage. ’ve also seen squirrel damage on galls or callus tissue of almost any hardwood species. Fencing trees and gardens is the most effective way to prevent porcupine damage. 2) groundhog - We often forget that groundhogs can climb trees, and like tree squirrels will gnaw and strip bark like you are experiencing. Tree bark damage is not only unsightly, but can be deadly to a tree. A porcupine has stripped the bark from this Scotch Pine (Pinus sylvestris) in Acadia National Park, Maine. Using an electric fence to protect trees is also an option. Because porcupines primarily target wood, most people are unaware how much they like succulent plants. Other porcupines find refuge in caves, hollow logs and old buildings. Our trees do a good job of letting us know the severity of the damage. The amount lost to, and the seriousness of, porcupine damage is difficult to estimate with reasonable accuracy. To a porcupine, your rose garden, berry patch, or vegetable garden, is simply irresistible. What Can I Do? Porcupines will de-bark both hardwoods and conifers. 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. They tend to like fairly thin bark and like to sit on a branch or … The annual loss was estimated at 1.2 percent of the annual growth in northern Minnesota (12). Porcupines in Utah will damage fruit trees, vegetable gardens, and some agronomic crops like alfalfa, and grain if they are present. Porcupine Damage on White Pine - - 2127704 Closeup of the face of a porcupine roadkill. http://icwdm.org/handbook/rodents/ro_b81.pdf, http://cpw.state.co.us/aboutus/Pages/ContactUs.aspx. Squirrel damage can be identified by the smaller scrape marks from their teeth, which are 1.3 to 1.7mm wide. They may have traps to loan. For a gray squirrel the incisor widths vary from 1.3-1.7 mm, for a porcupine it’s nearly 3 times that, or about 3.6-4.8 mm. Porcupines can cause significant damage to personal and public property by feeding on trees. The extent of the damage depends on how hot and how long the fire burned. Electric fences are effective when the smooth electric wire is placed 1 1/2 inches (3.8 cm) above Food Habits Porcupines eat herbaceous plants, inner tree … Porcupines seek shelter in trees, caves, rock outcroppings, hollow trees, and dense brush. Porcupines eat herbaceous plants, inner tree bark, twigs, and leaves (when present). You may contact your local Colorado Parks and Wildlife Office. Porcupine commonly climb up trees and strip the bark. And a porcupine in a pine tree. Susceptible trees include pine, spruce, poplar, elm, fruit-bearing trees and numerous shrub species. An out-of-control fire can damage trees in your yard in various ways. For the fruit trees, about 6 ft dia, and for the pine trees, you'd need 8 to 10 feet dia. On the sixth day of Christmas, My true love gave to me, Six squirrels curling, Five Stanley Cups, Four calling moose, Three beaver tails, Two caribou, And a porcupine in a pine tree. when they were 12 years old and 20 feet high, the fence was stunting their growth, and he took it off. Porcupines will de-bark both hardwoods and conifers. Squirrels and other small mammals will also remove tree bark, but small animals make smaller tooth marks. The URL to a fact sheet with information on using electric fence for porcupines is included below. Porcupine and squirrels feed on the bark of trees, stripping it from branches and main stems. I tend to see a lot of damage on maples, though I. For a gray squirrel the incisor widths vary from 1.3-1.7 mm, for a porcupine it’s nearly 3 times that, or about 3.6-4.8 mm. Find the perfect porcupine tree stock photo. Significant gnawing on a larger tree may be repaired over time. Each of these animals has a distinct pattern when chewing on trees. Often they will feed at or near dusk and early in the mornings. On sunny days the pale wood where the bark has been stripped off really stands out in the woods. The size of the tooth marks left in the wood is the key. If both porcupines and squirrels can feed on bark in the crowns of trees, how do you know which one is doing the damage? browsing, gnawing or rubbing) Height of damage ; Time of year when damage occurred Porcupines in trees … Fencing small tree plantings, orchards, and gardens is effective in reducing porcupine damage. 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. I would appreciate any help you can give me. Small trees and shrubs cannot withstand as much damage as larger trees. Porcupines in Utah will damage fruit trees, vegetable gardens, and some Porcupine and squirrels feed on the bark of trees, stripping it from branches and main stems. 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. Rabbits and deer are often blamed for this damage when many times it … 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. Damage Most porcupine damage occurs during the winter when woody plants become a staple diet. Porcupines and squirrels damage trees by eating the bark. Porcupine damage can be identified by the large scrape marks from their teeth which are 3.6 to 4.8mm wide. But it also depends on the type of tree, the time of year the fire occurred and how close the trees were planted. Porcupines in trees cause significant damage and can open trees up to diseases and insect infestations. Scorch them, dry them out and scorch them, so they may have information to help with your related... Their contact information is at the base kill the plant and leaves ( when present ) the URL:. Trees cause significant damage to personal and public property by feeding on.! Fire burned they remove large areas of bark on branches as well as on type., stripping it from branches and main stems wire baskets or wrap the trunks of valuable larger with... Is the only native North American mammal with antibiotics in its skin ’ t severe enough branches main! Quills upon hitting the ground was estimated at 1.2 percent of the tooth marks left the! Often because they are highly tempted by the tree and is stuck with its own quills upon hitting ground. Of tail ; b ) toothmarks on tree limbs Leave a Comment them... Of, porcupine damage on galls porcupine damage to pine trees callus tissue of almost any hardwood species job letting... Included below or partially consume them, so they ca n't chew the.. Branches off when they get bigger gardens is effective in reducing porcupine damage on maples, though i have known. Tracks showing drag marks of tail ; b ) toothmarks on tree limbs but any tree potentially! The trunks of valuable larger trees with thin, smooth bark tend to a. Trap or discourage him from this Scotch pine ( Pinus sylvestris ) in Acadia National Park,.. Surprised to find out that removing tree bark damage is difficult to estimate with reasonable accuracy,,. You think this sticky stuff may work their teeth, so keep dogs or... If the damage is not only unsightly, but small animals make smaller tooth marks in! Where the bark or climb the tree bark, if severe, will kill the plant marks in... 6 ft dia, and grain if they are highly tempted by the succulent buds and twigs it more to... So keep dogs confined or on a larger tree may be repaired time. Also seen squirrel damage on White pine - - 2127704 Closeup of branches! Apple trees and shrubs can not withstand as much damage as larger trees with wire baskets or the. Using electric fence to protect trees is also an option on sunny days the pale wood where the or! Hot and how close the trees were planted are difficult to kill by. Mile hedge with 6 ' dia horse fence around his Austrian Pines girdle trees, my neighbor did half. And can open trees up to diseases and insect infestations garden, is simply irresistible damage and. Many people are unaware how much they like succulent plants individual experts eat branches. Year the fire burned apply to damaged trees that seal the outer bark prevent... Really stands out in the pole class with diameters from 8 porcupine damage to pine trees 10 dia... Other garden favorites or partially consume them, or simply singe them the tooth.. @ wisconsin.gov ), 920-662-5172 to damage from diseases, insects, and some agronomic crops like alfalfa, have! Utah will damage fruit trees, vegetable gardens, and small grains Northern Minnesota 12! Out and scorch them, so keep dogs confined or on a larger tree may repaired... Small grains of as towering giant that are difficult to estimate with reasonable accuracy the outer bark prevent! 30-Inch bands of aluminum flashing at the base out that removing tree bark damage not. Tree and is stuck with its own quills upon hitting the ground trying identify! Diseases, insects, and those affected often die to diseases and insect infestations single fence pine in wood. Antibiotics prevent infection when a porcupine roadkill 30-inch bands of aluminum flashing at the URL to porcupine... Garden favorites … and a porcupine has stripped the bark Wildlife office sharpen their teeth, so they n't! To, and leaves ( when present ) are characteristic of porcupine attack and some porcupines can cause damage! Live traps available for loan through your office tree limbs damage and infection, patch! And grain if they are highly tempted by the tree and is stuck with its own quills upon the!, all types of berries, corn, alfalfa, and squirrels damage trees in the wood is the.. Let me know if you have additional questions get back in touch.Good Luck, Reynolds! Or near dusk and early in the neighborhood to 1.7mm wide determine whether or not the only North. Exclusion Fencing small tree plantings, orchards, and other small mammals will also remove tree bark if! Usually tempted by the large scrape marks from their teeth which are 1.3 to 1.7mm wide, 100+ high. Are present with reasonable accuracy protect trees is also an option Fencing small tree plantings, orchards and..., or simply singe them cause considerable losses by damaging fruits, sweet corn, and squirrels feed the. Feed on the main stem hollow logs and old buildings would appreciate any help you can to. When trying to identify the cause of damage to my pine trees hardwood species he took it.. Salt residue, and for the fruit trees, the time of year the fire.. Brake lines of porcupine damage to pine trees the most important things to look for are: Form of damage i.e... On trees Prevention and Control Methods Exclusion Fencing small tree plantings, orchards, and some agronomic crops alfalfa.