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CAN I SHOOT A BLACK BEAR OR MOUNTAIN LION IF IT IS ATTACKING MY DOG OR MY LIVESTOCK? EAR TO THE GROUND WITH DNR & COMMISSIONER FRANZ, Washington Forestry Protection Association estimates, Tips to enjoy winter recreation on DNR-managed lands, Be aware of weather conditions, choose when to ride. We are not alone with this issue as, across the state, reports of porcupine damage to trees have increased. Damage. Protect the tree from future damage with a small cage of 36-inch tall hardware cloth. I also consulted with an expert woodswoman. Have you seen trees with large areas of their trunks stripped of bark? A single bear can strip bark from as many as 70 trees per day. Rushmore, Francis M. Trees that have been girdled by chewing will die, often ruining thousands of dollars’ worth of landscaping. It raises these spines when it feels threatened, but they won’t do much damage to a human or large animal. This antibiotic layer prevents possible infection at the event where the porcupine falls from a tree and gets pierced by his own quills as it hits the ground. Trees between 15 and 25 years — especially Douglas-fir, western hemlock and … Wintertime is usually when the worst tree damage occurs because smaller vegetation is scarce. While porcupine can damage healthy trees, the biggest source tree damage in Washington State, especially in young trees, comes from black bears. Close-up of a beaver bitten tree. The damaged trees can die but in doing so also become home to the many species of wildlife that take shelter and build nests in diseased or hollow trees. The Washington Forestry Protection Association estimates that a single foraging black bear can peel bark from as many as 70 young trees a day. They damage equipment and buildings in their incessant search for salt. The quills, or spines, take various forms depending on the species, but all are modified Landscape damage caused by these animals can cost thousands of dollars to repair. Raccoons can destroy crops, tear up sections of the roof and vents, and spread disease. Porcupines in trees … Damage within a stand can be extensive. Remember, if the snow gets above the treatment, they’ll have access. All this sign is a way of communicating with other bears. A single animal can quickly expose the root system on a tree, leaving it open to insects or disease. There are products you can apply to damaged trees that seal the outer bark to prevent further damage and infection. Bears would leave vertical scratch marks, and porcupines eat the outer bark as well, and the height rules out deer so that really leaves just the squirrels. Trees between 15 and 25 years — especially Douglas-fir, western hemlock and western red cedar — are  popular targets because of the sweet layer of the trunk that animals can find just under the bark. The damage reported starts at the top of the tree with the bark being stripped off of the upper branches and progresses to the trunk. Winter finds the creature depending almost entirely on trees for food and can be considered the time of peak destruction from the forester's view. Porcupine are present in both eastern and western Washington. During the winter, they chew through the outer tree bark to eat the tissue-like inner bark. They will. They are an enormous family of creatures, and although the Old World porcupines, and New World porcupines, are all from the same branch of the rodent family, they are actually not closely related. North American Porcupine climbing a dead tree with yellow Birch leaves and evergreens in Autumn Erethizon Dorsatum Minnesota USA. Animals, and occasionally people, are damaged in encounters with porcupine defense systems: quills. For example, porcupine damage can suppress some tree growth in the forest, which may open up the forest canopy and permit sunlight to penetrate to the forest floor. And you can especially suspect porcupine if there are convenient branch “seats” for the animal to be perched on as it strips the bark, and eats some of the bark and licks and chews at the sugary wood surface beneath. 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. Porcupines’ back, sides, and tail are covered with thousands of stiff, needle-like, finely barbed hairs (quills) for defense. Treat above where you think it will accumulate (at least 3-5 feet up above the snow line) to insure you have enough protection. Forest Service Research Paper NE-136, U.S. Department of Agriculture, 1969. A gray squirrel’s incisors leave marks between 1.3 to 1.7 mm wide, while a porcupine’s teeth marks are nearly triple that, from 3.6 to 4.8 mm wide. I’ve puzzled over the pictures you sent me of marks on a tree, as well as the details about measurements and known wildlife in your area. Never feed or try to pet bears. Even with prompt care you should expect to see some die back in the tree’s canopy. These animals have strong claws and will climb poles and trees to gain access to the roof of a house, bird feeders and other structures up high. A hedgehog has 5,000-7,000 spines, similar to the spines on a sea urchin. Porcupine commonly climb up trees and strip the bark. The Washington Forestry Protection Association estimates that a single foraging black bear can peel bark from as many as 70 young trees a day. Significant gnawing on a larger tree may be repaired over time. Bears are much harder to chase after they have begun eating. 9.) If you see bark striped from a tree, strips hanging from limbs, and perhaps piles of the stripped bark at the base of the tree, you might have seen the work of a hungry porcupine. They tend to like fairly thin bark and like to sit on a branch or in a crotch where they can feed leisurely. Beaver bitten and felled tree. This tree bears many scars of repeated use by bears. This necessity of nature has led to the porcupine being disliked for the damage it can cause to trees near homes or businesses. A porcupine has quills. Prevent raccoons from tree climbing to avoid further property damage. They will regularly cut down trees. It could be bear or beaver damage, but what if the removed bark area goes up to nearly the top of the tree, higher than a bear or beaver would go in search of tasty bark or bugs? Source . Porcupine are present in both eastern and western Washington. The average day's meal for an adult porcupine is a patch of bark about the size of this page. Post was not sent - check your email addresses! And you can especially suspect porcupine if there are convenient branch “seats” for the animal to be perched on as it strips the bark, and eats some of the bark and licks and chews at the sugary wood surface beneath. The porcupine is a rodent widespread in southern Europe and Africa. As a last resort and you feel you are in a situation, Capsaicin spray (commonly called pepper spray) has proven extremely effective. Beaver harvest trees in riparian areas. They’re FREE — CLICK HERE to subscribe. 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. They’re FREE — CLICK HERE to subscribe, EAR TO THE GROUND WITH DNR & COMMISSIONER FRANZ, Washington Forestry Protection Association estimates, Seasonal closures begin in the fall for many DNR-managed lands—know before you go, Grants available for fire protection districts and departments through DNR-administered program. Q. It’s particularly easy to strip the bark from conifer trees in the spring when the bark is relatively lose and pliable. Porcupines have been known to strip or “girdle” tree bark from both the trunk and upper limbs with their two front teeth, which can sometimes kill the tree. Porcupine sign: a) tracks showing drag marks of tail; b) toothmarks on tree limbs. A Porcupine, Erethizon dorsatum, fed on this tree's bark in Rosy Mound Natural Area, near Grand Haven, Michigan, USA From the animal kingdom: the porcupine thorn. This description fits the damage done by porcupines. While porcupine can damage healthy trees, the biggest source tree damage in Washington State, especially in young trees, comes from black bears. Porcupines love salt and will be inclined to enter the trap as … It’s particularly easy to strip the bark from conifer trees in the spring when the bark is relatively lose and pliable. "Sapsucker." It’s true that fox squirrels and gray squirrels strip also bark from trees, and so do raccoons, but don’t forget about another forest dweller: the porcupine. Bears have been known to strip entire trees. This can stimulate herbaceous understory vegetation which benefits different species than those that prefer a closed-canopy forest. U.S.D.A. Porcupines do also pose a serious threat for pets, especially dogs. Bears usually forage on the lower trunk of trees, girdling the bottom 1 to 1.5 meters. The Washington Forestry Protection Association estimates that a single foraging black bear can peel bark from as many as 70 young trees a day. They tend to like fairly thin bark and like to sit on a branch or in a crotch where they can feed leisurely. This is particularly troublesome because porcupines prefer trees with smooth bark—as most decorative trees and shrubs have. It may be better to sacrifice the tapped and already damaged tree in favor of the loss of another tree due to future tapping damage. Of its 30,000 quills, between 700-800 are barbed (ouch). The North American porcupine is found in New England, the upper Midwest and western United States and most of Canada. A porcupine’s two large front teeth will continue to … Porcupines are also the only North American mammal that has a special antibiotic coating on a layer of its skin. Amazing Porcupine vs Lion - Lions Attack Porcupine | The Most Powerful Big Cat In the WorldWelcome to Channel ! The damaged trees can die but in doing so also become home to the many species of wildlife that take shelter and build nests in diseased or hollow trees. 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. Porcupines are creatures of … It blinds the animal without causing any damage. The tree-gathered menu is supplemented with ground vegetation. They chew on hand tools, decks, and other wood objects while seeking salt. Porcupine, any of 25 species of large, herbivorous, quill-bearing rodents active from early evening to dawn. If you are finding damage on your property, you will need to act. Beavers eat mostly tree bark and leaves. A. Porcupines occasionally will cause considerable economic loss as they eat forest plantings, orchards and implements. Sorry, your blog cannot share posts by email. Grafting is not rocket science but does require some skill and knowledge. A porcupine can strip a bark off a tree and kill it. All have short, stocky legs, but their tails range from short to long, with some being prehensile. A 4- to 6-inch (10-to 15-cm) electric fence can be enhanced by painting molasses on the wire. Have you seen trees with large areas of their trunks stripped of bark? These bristles help the porcupine to adhere itself on a tree trunk. 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. Porcupines occasionally will cause considerable losses by damaging fruits, sweet corn, alfalfa, and small grains. What damage can porcupines cause? If you see bark striped from a tree, strips hanging from limbs, and perhaps piles of the stripped bark at the base of the tree, you might have seen the work of a hungry porcupine. Sign-up for DNR enewsletters. A beaver can chew down a small ann big tree. Fencing trees and gardens is the most effective way to prevent porcupine damage. 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