Twigs and larger branches die.

Question. LEARN HOW TO STOP THE INVASIVE SPOTTED LANTERNFLY, Coronavirus: Information and resources for the Extension Community. In the spring it was green and flowering and seemed healthy, but in early/mid summer it suddenly (and quickly) shed all of it's leaves and started looking rather withered. Remove infected trees. Sign up for our newsletter.

Lombardy poplar is very susceptible. Just adding my two cents: the tiny little flying bugs are most likely fungus gnats. The branches of a dying tree often look lifeless, brittle, and can easily crack when you apply pressure. A canker, or dark, sunken area on a branch or trunk, gradually spreads around the tree. Cultural Control. Ants often feed off the aphids' honeydew and protect the aphids from predators in return. Branch die back and death caused by larvae feeding under bark; Creates serpentine S-shaped galleries underneath bark "D" shaped exit holes present in affected branches; Adults have black bodies with a tinge of metallic green; approximately 3/8th inch long All of them had these little red bumps on them though - any idea what these are?? Remove infected trees.

Small, yellowish-orange areas of powdery spores form on the underside of leaves.
As to Bess's idea of introducing new trees to take the place of the Poplars I have successful used this method in the past. What might be a good alternative?

Broken branches should be pruned to eliminate ragged edges. The leaves turned brown and fell over the span of 2-3 weeks in early summer when it was very hot. If you spot ants on your poplar trees, apply sticky bands to the trunk about a foot off the ground to exclude them. Definitely liriodendron tulipfera. > Deciduous Trees > Poplar > Scattered dead branches in canopy, Commercial Fruit and Vegetable Production, Regional Sustainable Development Partnerships, Fish, Wildlife, and Conservation Education, Leaves on one or more branches are undersized, turn yellow then to brown and remain attached to stem, Cankers begin near wounds or at the base of a branch, Infected bark initially turns yellowish-orange; older infections are black at center with yellowish-orange margins, Bark first appears blistered and raised, then falls off to reveal blackened wood, Clusters of raised buff white to black bump like fungal stromata can be seen on 3 year old cankers, Random dead branches seen throughout canopy, Sunken irregularly-elongated cankers with cracked bark at the edges occur on branches or the main trunk, Leaves on random branches wilt, turn yellow then brown, Cankers are brown to black at the center with salmon to orange discoloration of the bark at the edges, In wet weather curled tendrils of orange spores emerge from pimple like fungal structures within infected branches, Common on trees stressed by drought, winter injury, wounds, insect feeding or other factors, Random dead branches caused from girdling cankers seen throughout canopy, Bark on cankers may or may not be discolored, but the tissue beneath the bark will be brown to black, Leaves on infected branches turn yellow and drop prematurely, Multiple thin weak adventitious shoots develop, Callus tissue formed around edges of cankers causing bark to fall off and expose the wood beneath it, Branch die back and death caused by larvae feeding under bark, Creates serpentine S-shaped galleries underneath bark, "D" shaped exit holes present in affected branches, Adults have black bodies with a tinge of metallic green; approximately 3/8th inch long, Larvae are whitish, slender, 1- 1 ½ inch long with 2 dark brown tail-like structures at the end of the body, Branch tips die and/or break over above the gall, Twig bulges or becomes round where longhorned beetle larvae are feeding, Fully grown larvae are up to 1" long, creamy-white and legless, The canopy may show no symptoms or may have small yellowing leaves/dead branches depending on the extent of the trunk decay, In cross section of the trunk, the wood at the center is discolored, soft, crumbling, stringy or spongy, Fungal fruiting bodies arise along the stem, near a pruning wound, crack or other wound, Fruiting bodies are up to 8 inches wide to 6 inches thick; lower surface at 45 degree angle, Fungal surface is pale brown when young to black and crusted when aged, Run-off salt kills roots which results in die-back of branches, Soil salt damage causes leaf edges or margins to appear burnt or scorched progressing toward the mid-vein, Affected trees leaf out later than other non-infected trees, Damage most noticeable in spring and the summer growing season, Leaves are smaller in size and turn yellow earlier than normal, Canopy appears thin with few leaves and multiple dead branches, Fungal conks, a semicircle shelf fungi, can be found from the base of the tree up to 3 feet high on the trunk, Conks are reddish brown and shiny on top, white and porous underneath, a rim of white may be visible on the edge of, Infected wood at tree base is white, soft, stringy or spongy, Infected trees frequently break or fall over in storms, Infected trees have poor growth, dead branches in the upper canopy, undersized and/or yellow leaves, Flat white sheets of fungal growth (mycelia fans) grow between the bark and sapwood at the base of infected trees, Thick black, shoestring-like fungus can sometimes be seen under the bark, around roots and in the soil around the base of the tree, Wood is decayed, white, soft and spongy, and this may extend from the base of the tree well up into the trunk, Clusters of honey-colored mushrooms may grow at the base of the tree in fall. If it grows to cover half or more of the circumference of the trunk, the tree will probably die. You must have JavaScript enabled in your browser to utilize the functionality of this website. 6 Ways to Help Your Dog and Landscape Play Nicely Together, Decluttering — How to Get the Help You Need, Downsizing Help: How to Edit Your Belongings, Standard Fixture Dimensions and Measurements for a Master Bath, 8 Questions to Help You See Through Green Hype, 12 House-Hunting Tips to Help You Make the Right Choice, You Said It: ‘Put It Back’ If It Won’t Help Your House, and More Wisdom. But if the leaves aren't there at all, it's probably dunzo. You fit right in, here. You can get rid of them by letting your soil dry out between waterings (don't let the plant droop, just make sure the top inch of soil is *totally* dry before you water again). Good care goes a long way toward extending the life of your tree. I would recommend you contact a Master Gardener in your county and perhaps they can advise. Arcto- gotta love the long-winded answers! I have one tree that appears to be totally dead. These trees were planted about 8 1/2 years ago. The flying adults are harmless to your plants, but the larva eat the roots of the plants. There are a number of of "blights" that effect poplar, but in general it effects the leaves. Where are you? Green-brown material filled with spores oozes out of the canker during wet weather and dries to a brown color. We moved into a home with a large tree in the backyard - we think it's a tulip poplar but aren't 100% sure. The white poplar or silver poplar (Populus alba) is susceptible to a number of diseases and pests capable of making the leaves of the tree fall prematurely in summer. Carolyn Chang. At first, a few twigs are killed. Two leaves at the bottom fell off the other day. It frequently kills Lombardy poplars (Populus nigra cv. This is often the best option for mature poplars.

Add Go Gnats (a cedar oil based organic pesticide) to your nutrients when you do water. Reinvent! Brown, circular, sunken cankers form on the bark.

These spores spread to the alternate host, hemlock. I wonder how much more hardy these are than than the old ones? The microscopic organisms that cause poplar tree diseases enter the tree through wounds and breaks in the bark. Shoot Blight. I have many large poplar trees growing, which is fine; however, the small … © Copyright 2020 Hearst Communications, Inc. No control is recommended since little damage occurs. Manfred Mielke, USDA Forest Service, Bugwood.org, Lombardy Poplar Facts – Guide To Lombardy Poplar Care In The Landscape, Aspen Tree Care: Tips For Planting A Quaking Aspen Tree, Hypoxylon Canker Fungus – Learn About Hypoxylon Canker Control, Candle Jar Planters: Growing Plants In Candle Holders, Homemade Planters: Growing Plants In Everyday Items, November Gardening Tasks – Ohio Valley Gardening In Autumn, White Rosemary Plants – Learn About Growing White Flowering Rosemary, Calabaza Squash Uses – How To Grow Calabaza Squash In The Garden, What Is Balanced Fertilizer – When To Use A Balanced Fertilizer, Removing Rose Suckers – Tips On How To Get Rid Of Rose Suckers, Pressing Flowers: Bringing The Outdoors In Year Round, Halloween In The Garden: When Plants Become Dormant For Winter, Haunted Houseplants – Top Houseplants For Halloween, Giant Pumpkin Growing: Life Lessons Through Gardening.

Skip to Left navigation Skip to Main content Skip to Footer, Extension > Garden > Diagnose a problem > What's wrong with my plant? Poplar tree cankers are caused by fungi that enter through injuries. Good luck. JavaScript seems to be disabled in your browser.
Mediterranean cypress? Young trees may die if they have not gotten well established before aphids attack.

By your description of large parts of the trees declining and dieing I would guess that it is a fungal pathogen (of course its just a guess). They actually start loosing them in late August. Theree's some scale there i think-perhaps Lecanium or another.

If so this would definitely not help the tree.

Remove severely infected trees. Pretty much one whole side of each tree is bare and all of the leaves have fallen off. A tree doctor will be able to tell you if what you are seeing on a tree is signs that a tree is dying. Good luck! Mulch should be kept at least 2 inches away from the trunk of a tree at all times. Look for the dying of crown branches and rot or termites in the trunk. These aphids enter leaf tissues as hatchlings, feeding primarily inside the stem or at the leaf's base.

How long do these trees live?

Ice storms in particular do a number on mine. Branch tips and young leaves blacken and die rapidly. I got it only a month ago.