August is Tree Check Month: Is your tree safe from Asian Long-horned Beetle?

Similar to undergoing an annual health physical or performing routine maintenance on your car, it’s important to carry out routine tree checks to maintain healthy trees. Trees are susceptible to pest infestation and disease, and if you neglect looking after them the result can be detrimental to the natural habitat. The latest outbreak is the Asian Long-horned Beetle, with reports from New York, New Jersey, Massachusetts, and Ohio. With August being Tree Check Month, we encourage you to check your trees for signs of Asian Long-horned Beetle (ALB).

7109590833_ac895c61e4[1]ALB was first detected in the United States in Brooklyn, New York in 1996. ALB is a large, bullet-shaped beetle with long antennae and elongated feet. Adult beetles emerge throughout the summer and early fall. Female beetles can lay up to 160 eggs in a 10-15 day time-span. When the eggs hatch the larvae tunnel into the tree and pupate. This disrupts the tree’s natural cycle of transpiration which results in the tree drying out and dying.

ALB is a serious threat to trees because once a tree is infested the only way of eliminating ALB is by destroying and removing the tree. Damage from infestations in New Jersey, New York, and Massachusetts has resulted in the removal of tens of thousands of trees; not to mention the hundreds of millions of dollars it has cost State and Federal governments in forestry management. This pest likes deciduous hardwood trees such as maple, birch, elm, poplar and several others. Once the beetle finds a healthy tree to nestle in it leaves its mark through dime-sized exit holes, shallow bark scars, and frass—sawdust-like material on the ground or tree branches.

A heavily infested maple tree with many exit holes.

Asian Long-horned Beetles eat through tree wood, leaving behind round exit holes.

There aren’t any effective treatments of preventing ALB, other than containment. It’s important to identify when a tree is infested because ALB spreads easily. While treatment applications or insecticides with the active ingredient imidacloprid may help protect non-infested trees and reduce ALB populations, it is not guaranteed to prevent trees from infestation. Even treated trees can fall victim to ALB.

You can help prevent the spread of ALB by burning firewood where you buy it—ALB can survive hidden in firewood— diversifying the type of trees you plant— especially if you’re in a quarantined area— conducting an annual tree check, allowing officials to survey your area, and reporting signs of tree damage or spotting beetles resembling ALB.

You might find our Help Stop Insect and Disease Invasions bulletin to be especially helpful during your August tree check. Check out this map to learn if your area is at risk of the ALB infestation.

Proper summer watering of trees

Summer has an intriguing way of luring in longer days, sunnier skies, and vibrant landscapes. For many, summer is a calming retreat after enduring what felt like an endless winter. Naturally, with heat waves we feel inclined to water our trees regularly, but it’s easy to get carried away and over-water. While we have suffered through drought conditions here in the Heartland, other areas have had to deal with heavy rainfall, even flooding. The following are a few rules of thumb to keep in mind when watering your trees.

With differing climates and varying landscapes, it’s hard to quantify how much water trees need because irrigation will vary from one species to the next. Young trees and those transplanted will call for more water because they’re burning lots of energy establishing their roots in the soil.

Hose_deepwater[1]For young trees we encourage a deep-watering by running the hose over the root zone for about 30 seconds. The idea is to reach the full root depth and keep the soil damp, not soggy. Mature trees are best left to nature; unless you’re suffering from severe drought conditions, let your rainfall do the watering. Be cautious not to overwater, as it can drown the tree roots. If a puddle remains after watering then take it as a sign of too much watering. Other signs to look for include yellow leaves, usually starting on the lower branches, wilting, brittle green leaves, or fungus growing on soil surface. If your soil is wet and you notice any of these changes, you may be overwatering your trees.

Ooze-TubeGallons_1-885[1]A soil probe is helpful in learning how dry or saturated your soil is and can set the tone for watering frequency.You can also test soil moisture by hand. If a planting site is properly hydrated you should be able to compress the soil into a ball that will crumble when gently rolled between the palms of your hands. No need to dig deep, one to two and a half inches below ground level is sufficient in testing the moisture content.

Ooze tubes—an automated drip irrigation system— are another great method for controlling water time and ensuring your trees are receiving adequate water.

Mulching is a great practice to implement in tree care, especially if you’re dealing with drought conditions. Mulch retains water, helping to keep roots moist. DSC00575_000[1]Another tip to avoid drying out soil during times of drought is to stay away from commercial potting soils and fertilizers. Salts and other additives in fertilizers such as Miracle-Gro can cause root burn, adding additional stress to trees. Proper tree pruning improves limb stability and structure, and removes dead branches, which decreases tree tension and allows water to move where needed most in the tree.  Also, avoid digging holes in the ground as an effort to water deeply; it will only dry out the roots even more.

With your help, the season of sun can work in favor of your trees. You can read up on other great ways to save water in our How to Landscape to Save Water Tree City USA bulletin. What other tips do you practice in keeping trees appropriately watered during the summer season?

Your questions about fall planting answered!

 Is it better to plant in spring or fall?

Both seasons can be effective times to plant your trees and shrubs. A great benefit of planting treeplanting in the fall is that tree roots remain active throughout the winter, taking advantage of moisture from rain or snow. Trees planted during this season get a nice head start on establishing themselves in the spring through vigorous root elongation and a flush of twig growth. Keep in mind that some plants, such as blueberries, blackberries and grapes, have the best chance of growing up strong and healthy when planted in the spring.

What are some tips for planting in the fall?  

  • If you cannot plant immediately due to adverse weather conditions, you may store your trees for up to 5 days. If storing your trees for longer than 5 days please follow the instructions for Heeling in Your Trees.
  • Avoid planting your trees in pots, if possible.
  • When you plant in the fall, be sure to mulch with wood chips, straw or other material to reduce alternate freezing and thawing that can result in “frost heaving.”
  • Avoid using fertilizer, potting soil or root starter, as they may be detrimental to the health of your new trees.

I’m ordering natural root trees…are they watering image croppedok to plant this late in the season?

Planting trees in late fall is well worth some cold hands! To be sure that your trees arrive in a strong and healthy condition, nurseries will usually ship “natural root” or “bare root” stock only when it is dormant in the fall season. Trees will only go dormant after a few hard frosts, so it’s necessary to wait until then to be able to ship them safely.

But it’s cold! Are the trees able to survive the weather?

As long as a spade can be inserted into the ground, it is okay to plant the trees. In other words, you may plant your trees until the ground is completely frozen solid—so until you can safely ice skate or ice fish on your local lakes or ponds, planting your dormant trees is just fine.

What can I do to prepare for my trees’ arrival?

  • Pre-dig your holes now, so when your trees do arrive you are prepared to immediately get them in the ground.
  • Store the dirt you removed from the hole in a garage or tool shed where it will not get as cold. Left outside, it may harden and prove more difficult to work with once the time comes to plant.
  • mulchPre-purchase mulch, as some stores may not have as large of a mulch supply in their inventories as the season progresses—you want to make sure you’ve got plenty of mulch on hand for your newly planted trees once they arrive!

Happy planting!

(Note: If you live in Hardiness Zone 6, you may still order trees from the Arbor Day Tree Nursery until November 19. If you live in Zone 7, 8, or 9 you may order until November 26 and still receive your order this shipping season. Hardiness Zones 0-5 are currently being shipped.)

 

Urban Forestry Plan is Key to Weathering the Storm

Let’s face it: no one likes to think about natural disasters, with their potential for devastation of our homes, neighborhoods, communities, and livelihoods. We’ve shared on this blog before about some of the communities hit hardest in recent years by natural disasters, and told the inspiring stories of citizens returning hope and healing to the places they call home.

Even still, there’s simply no way around it. Natural disasters are a fact of life.

When a natural disaster strikes a community, trees are invariably involved and many

Photo credit: Urban Forest Strike Team.

Photo credit: Urban Forest Strike Team.

times on the losing end of the event. Using the framework of the Arbor Day Foundation’s Tree City USA program, sound urban forestry management has proven essential to loss prevention and recovery of our treasured trees.

The scientific consensus is that climate change is occurring and that, in many cases, it is making natural disasters worse. Any planning to mitigate disasters should also include planning to reduce human-caused acceleration or magnification of climate change.

According to a survey by the Massachusetts Institute of Technology, nearly three-quarters of U.S. cities are now seeing environmental shifts that can be linked to climate change. More than 1,000 city leaders have signed the U.S. Conference of Mayors Climate Protection Agreement to strive to meet or exceed Kyoto Protocol targets in their communities to reduce greenhouse gas emissions.

A healthy canopy of trees plays an important role in this effort. Trees need to be considered a vital part of every city’s infrastructure – right alongside the bridges, roads, sewers, electrical, and telecommunication grids – and appreciated for the natural workhorses that they are. For proof, one need not look further than the great role trees play in taming stormwater runoff during and immediately following natural disasters.

Sound urban forestry management through the framework of the Tree City USA program has been proven to be essential time and again. In fact, green infrastructure is the only part of a city’s infrastructure that actually increases in value and service over time.

Whether for preventative measures or recovery efforts, here are four key ideas your community needs for the best possible outcomes:

  • Communities with an established budget for tree care are in a better position than those that must compete for grants or appropriations. If your community is a recognized TreeCity USA, your community allocates the standard minimum of $2 per capita in a community forestry program.
  • Be prepared with an emergency management plan – and even better if it specifically includes a storm contingency plan. Unfortunately, it’s likely not a matter of IF you’ll need it, but rather WHEN you will.
  • Take time to “get it right” after a disaster. As in most things, it’s far better to move slowly with deliberate, well thought-out decisions and wise judgment than to rush into hasty action. This is particularly important when considering where reconstruction efforts will take place across a community and where trees should be replaced.
  • Lean on the expertise of your local tree board and their extensive list of contacts. These people will be an invaluable resource when it comes time to actually do the work of replanting trees.

For more information on best practices and ways your community can recover from natural disasters, see Tree City USA Bulletin #68.

Donate Now: Plant trees where they’re needed most.

 

Treating Trees: Good Advice from a Girl Scout

Here at the Arbor Day Foundation, we have members, advocates, and supporters from all walks of life, representing all corners of the globe, and encompassing all ages.

In part, that’s because the good work of planting and caring for trees spans all boundaries – physical, geographical, socio-economic, and many others.

And we love hearing from these advocates. They’re caring, passionate people who lead interesting lives and who have wonderful stories to tell.

This week, our Member Services team received an email from a young lady in Newark, New Jersey, named Victoria Ribeiro.

Girl ScoutsVictoria is a high school-aged girl scout who is working on earning a Gold Award, the highest award given by the Girl Scouts of America. All Gold Award projects must begin with identifying an issue about which the scout is passionate and end with educating and inspiring others on the topic.

Clearly, Victoria is passionate about trees, and we can honestly say we were inspired by her work. Her Gold Award project, an educational PowerPoint presentation entitled Treating Trees, “…seeks to educate the residents of the city of Newark so that they will be able to identify hazardous trees.”

A scene from a Newark, New Jersey, neighborhood following Hurricane Sandy. Ribeiro's presentation seeks to inform people of what to do with hazardous trees in their neighborhoods.

A scene from a Newark, New Jersey, neighborhood following Hurricane Sandy. Ribeiro’s presentation seeks to inform people of what to do with hazardous trees in their neighborhoods.

Victoria’s email continued: “I must make my project have a global/national impact. I looked at your website and saw that [the Arbor Day Foundation] didn’t really have any program that the residents of a city could help identify trees and make his/her community a better place to live. I am emailing you in the hopes that you may possibly create a program similar to mine to make other neighborhoods a safer and better place to live.”

Victoria, we commend you on your excellent presentation and how you’re helping to educate your fellow citizens on trees and tree care. We’re proud to share your work with others who can learn from it for greener, healthier neighborhoods — in Newark and beyond.

Thank you for sharing your passion for trees, and we wish you much succes on your way to earning the Gold Award.

Download your own copy of Victoria’s Treating Trees presentation.

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What to do about Wildfires: Prevention vs. Combat

As the 2013 fire season continues, the costs of fighting wildfires have continued to increase. In 2012, fires consumed 40 percent of the Forest Service’s annual budget, compared to only 13 percent in 1991. Many factors have created these rising costs through the years, including worsened drought conditions, continued climate change, and an increased number of homes built near forested areas. These escalating expenses are proving to be so costly, that they are leaving less money for wildfire prevention.

 

Forest Fires

Drought conditions, climate change, and homes in traditionally forested areas have all contributed to the rising costs of fighting wildfires.

Due to these heightened factors, for fiscal 2014, the federal administration has proposed drastic spending cuts to hazardous fuels reduction, or clearing smaller trees and underbrush through controlled cutting and burns. The idea behind hazardous fuels reduction is that by removing this underbrush, fires will have less fuel to spread rapidly and can then be controlled faster. Donald Smurthwaite, spokesman for the National Interagency Fire Center states, “In a recent study by the Bureau of Land Management, when wildfires burned into fuels treatment areas, they were slowed or stopped about 90 percent of the time. With the decline in fuels funding, we’re worried that saving money today will mean larger and more destructive fires tomorrow.” Limited funding has decreased fire prevention for several years. In 2009, 4.5 million acres were treated to prevent wildfires, and under the proposed budgetary cuts, fewer than 2 million acres would be treated in 2014.While the proposed budget for fiscal 2014 would increase overall funding for wildfires, it would largely cut the hazardous fuels budgets for several agencies. In all, 41 percent of these budgets would fall, reducing the current funds of $502 million to $297 million.  This will be the third consecutive year the administration’s proposed budget includes spending cuts to forest treatment to prevent wildfires. Many of these cuts will greatly affect our tree partners — the U.S. Forest Service and the National Park Service.

As an organization of people that cares deeply about our nation’s forests and trees, the Arbor Day Foundation continues to challenge ourselves to better understand how to collaborate with our partners on the ground as they overcome these budgetary hurdles.  There simply isn’t funding available as there has been in decades past, and that is where our valued members, supporters, corporate donors and partners can help us to heighten our efforts to do more with less. They can help us to see new ways to partner with these groups, to create even more relevant programs, and to provide trees to those areas most in need. As we address each new challenge, we search for ways to better engage our loyal members and tree advocates to keep them involved in the good work our partners accomplish each year with our support.

With the help and generosity of our vast network of tree advocates, we will continue to foster our enduring 25-year partnership with the U.S. Forest Service. With their help, the Arbor Day Foundation will continue to bring new ideas surrounding education, conservation, and tree planting in wildfire-stricken areas.

Two ways you can take action now:
The Backyard Woods Program: Managing Forests Can Save Forests
Donate now to replant trees where they’re needed most

Data cited in this post sourced from NBC News.
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Abbie Eisenhart is a Community Tree Recovery Manager for the Arbor Day Foundation.

Project Blue River Rescue: Improving Kansas City’s Waterways

Every year for the past 20 years, hundreds of volunteers and city workers in metropolitan Kansas City come together in an effort known as Project Blue River Rescue. Their goal: to clean up piles of trash and illegal dumping out of the Blue River which flows through their city.

Blue River Rescue 2013

Kansas City-area boy scouts take to the Blue River to haul out debris as part of the Project Blue River Rescue 2013. Photo: PBRR Facebook.

Partnering with the Kansas City Public Works, the Missouri Department of Conservation and several local businesses and organizations, Project Blue River Rescue has grown to be Missouri’s largest, one-day conservation cleanup.

“Each year, volunteers have cleaned up thousands of pounds of trash, tires, appliances and even cars,” says Wendy Sangster, Urban Forester with the Missouri Department of Conservation.

Blue River Rescue 2013

Volunteers remove several bags of trash and nuisance honeysuckle from the banks of the Blue River in metro Kansas City, as part of the Project Blue River Rescue 2013. Photo: PBRR Facebook.

More recently, Project Blue River Rescue has also focused on habitat restoration along the river. In April 2013, a group of 20 volunteers organized by the Heartland Tree Alliance, a branch of Bridging the Gap, planted 500 tree seedlings along the Blue River near a baseball complex in southern Kansas City. The seedlings included native species — burr oak, sycamore, pecan and shellbark hickory — all which would have normally grown along the Blue River. Volunteers also worked to remove invasive honeysuckle plants along the waterway to ensure the growth of these new seedlings.

Sangster firmly believes in the longevity of this project and the positive impact it has on the local community. By getting community members involved in the planting, she feels it instills a connection to nature and provides a foundation for advancing environmental stewardship in the greater Kansas City area.

“If a volunteer can do the physical, hard work of planting a tree,” Sangster says, “they are more likely to become ambassadors and tree stewards in their own communities.”
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Mary Sweeney is a program manager at the Arbor Day Foundation.

 

Summer storms keep disaster recovery top of mind

Strong storms, tornadoes, and wildfires have rocked communities all across the U.S. this spring and summer, leaving paths of destruction in their wake.

In the past few weeks alone, thousands of acres have burned in Southern California and New Mexico. Oklahoma and Texas each have seen rampant devastation by multiple tornadoes – some bringing the strongest winds ever recorded. And with the 2013 tropical storm season now officially underway, climatologists are predicting more and stronger storms for the coasts this summer. Read more…

Another study finds connection between trees and crime reduction

Last year, we pointed to research in Baltimore City and County linking tree canopy with reductions in crime.

treesNow, the journal Landscape and Urban Planning and Temple University have released similar findings for Philadelphia neighborhoods.

Both studies cut against the conventional wisdom in a sense, as many intuit that shade from urban trees makes crime harder to detect.

Says Jeremy Mennis, associate professor of geography and urban studies at Temple: “There is a longstanding principle, particularly in urban planning, that you don’t want a high level of vegetation, because it abets crime by either shielding the criminal activity or allowing the criminal to escape.”

But in both cases, the findings indicated the increased presence of grass, trees and shrubs correlated with lower levels of robberies and assaults, along with other violent and property crimes.

The Temple study established controls for other factors linked to crime, including poverty rates, educational attainment and population density.

Adds Mennis: it may not be the greenery itself as much as the increased social interaction and public supervision that deflects criminal activity.

Increased community pride and connectivity join a long list of already ample urban forestry benefits.

Photo courtesy of the U.S. Forest Service.

Climate change threatens the survival of older forests and trees

Much of the U.S. has been warmer in recent years, affecting not only which trees are right for planting, but also threatening the survival of older forests.

A Yale Environmental 360 article by Bruce Dorminey reported the giant sequoias native to California’s Sierra Nevada are facing the looming effects of declining snowpack and rising temperatures.

Photo Credit: VisitSequoia.org

Photo Credit: VisitSequoia.org

Giant sequoias are the world’s largest living species, reaching heights of 300 feet and girths as large as 150 feet. Dorminey wrote, “some sequoias can live in excess of 3,000 years before being naturally toppled by a combination of weather and gravity.”

Giant sequoias have evolved and thrived for multiple millenniums. The species may have survived previous eras of climate change but Dorminey says U.S. government and university researchers claim the long-term existence of these trees might now be endangered as a result of the changing Sierra Nevada mountain snowpack and current changes to the climate.

Less moisture and longer, warmer summers make it difficult for giant sequoias, especially the seedlings and young trees with smaller root systems, to survive.

The complex interaction of rising temperatures and shifts in snowmelt and precipitation is slowly altering and threatening environments where certain tree species have evolved and thrived.

Warmer temperatures also pose the threat of insect infestations which have already killed spruce and pine trees across more than 70,000 square miles of western North America.

Dorminey presented research showing how older forests and trees have proven to be at greater risk to the effects of climate change.

A recent study published in the journal Science found that trees ranging from 100 to 300 years old, located across a wide range of global landscapes, were experiencing rising death rates. This study and other research found that higher temperatures and drier conditions have played an important role in tree mortality and forest drought stress across the continents.

hardiness zoneYou can see how regional climates have changed over the past few years by visiting the Arbor Day Foundation’s U.S. Hardiness Zone map which was developed based upon data from 5,000 National Climatic Data Center cooperative stations across the continental U.S.