Displaying items by tag: sustainability

Thursday, 27 September 2018 18:49

Emerald Ash Borer Epidemic

By Kelsi Stubblefield Lewis, intern with the Division of Sustainability, Fall 2018 

It’s a metallic green beetle no bigger than a penny, and while it may not look intimidating at first, this tiny insect could cause serious harm to Nashville trees.

Photo credit

 

The Emerald Ash Borer is a small, invasive Asian beetle whose larvae burrow into and feed on the inner bark of ash trees.  Likely originating in Asia and transported to the United States via wood packing material, it is estimated that Emerald Ash Borers have been present in Davidson County since 2014 and in Tennessee since 2010. [i] [ii]

“Nashville has many beautiful native ash trees in parks, on school grounds, along city streets and in private yards.” Nashville City Horticulturist, Jennifer Smith, said. “Sadly, the Emerald Ash Borer, an invasive pest, will kill all of them by 2025-2030 unless the trees are treated. No ash tree is immune to the devastating effects of this insect which is now in Davidson County. The progress of the infestation and resulting tree death is swift.”

Ash Trees at Cheekwood Botanical Gardens. Credit: Patricia Miller

In Tennessee, Smith explained, the typical life cycle of an Emerald Ash Borer looks like this:

Photo credit

 

In May or June, the adult Emerald Ash Borer beetles fly in the tree tops for about two weeks looking for mates, sometimes up to 18 miles from where they originally hatched. After mating, the female beetle lays 40-70 eggs on the bark of the ash tree. When the eggs hatch in two to three weeks, the tiny larvae bore into the tree layers just below the bark to feed. When eating the wood under the bark, the larvae leave behind distinctive S-shaped tunnels. Larvae continue development into early fall, getting larger, going through four stages before the pupa stage. One to two weeks into the spring season, a new generation of adult beetles emerges from the tree through small D-shaped holes, ready to begin the cycle again.

The effects of the larvae’s feeding are devastating. Ash trees infested with Emerald Ash Borers need to be treated as quickly as possible, as infested trees can die as soon as one to three years after symptoms occur.

 

Is my tree infested?

According to the Metropolitan Nashville Public Works and The Metro Tree Advisory Committee, the following are signs of Emerald Ash Borer infestation:

  • A declining top (crown) with leaf loss and dying branches is often the first visible symptom.

  • Distinctive pencil sized D-shaped exit holes in the bark. Other native borers leave more roundly shaped exit holes.

  • When the bark is peeled back, larvae are found feeding underneath or have left s-shaped serpentine galleries.

  • Apparent “blonding” on the outside of the tree from woodpeckers stripping off bark in attempt to feed on the larva inside.

  • Small sprouts growing from the tree roots or trunk. [ii]

         

D-shaped exit holes                                                            S-shaped galleries                                                      Sprouting from base

 

Smith stresses that if you find out that you have an ash tree, now is the time to take action. Don’t wait until an infestation becomes apparent. Often by the time an ash tree has lost 30% of its crown, treatment may no longer be effective. “Be sure to follow recommendations on how to hire an arborist who can determine the health of your tree, offer removal alternatives, and treatment options,” Smith advises, “the sooner decisions are made about how to deal with your tree, the less expense will be incurred.”

If you discover that a neighbor has an ash tree, or that their ash tree is infested, let them know as soon as possible. They may be unaware of the Emerald Ash Borer epidemic.  If you suspect an ash tree in the city right-of-way to be infested, call hubNashville at 615-862-5000 or 311 to report it.

Bordering tree

 

When asked who should be concerned about the Emerald Ash Borer Epidemic, Smith’s answer was simple: everyone. “Nashville’s trees are very important to us,” Smith said, “trees improve air quality, conserve energy and reduce energy costs, reduce storm water runoff, provide wildlife habitat, and many other benefits. They add natural character to Nashville and give neighborhoods a sense of identity. It is estimated that ash trees make up approximately 10% of our urban forest canopy. A loss of 10% of our trees will affect all of us.”

Jennifer Smith had one final piece of advice to offer in response to the epidemic: “Plant trees! Our valuable and loved city’s forest will need help in recovering from the Emerald Ash Borer epidemic.”

Planting trees

 

The Landscape and Green Infrastructure Manager at the Department of General Services, Treff Alexander, spoke about how his team has been heeding Smith’s advice and planting trees to combat the Emerald Ash Borer epidemic. Alexander stated that there were approximately 12-20 ash trees on the city properties managed by the Department of General Services, and all but one have been removed. Some of the trees were displaying telltale signs of infestation, Alexander said, such as sprouts at the base and rot, so the trees were removed as a safety precaution, with the goal of preventing them from becoming a fall hazard. Plans are in place to replant different species of trees in place of the removed ash trees.

To learn more about tree planting, the Emerald Ash Borer epidemic, and how you can protect ash trees visit trees.nashville.gov.

The EAB Speaker’s Bureau, presented by the Metro Tree Advisory Committee, offers free informational presentations about the Emerald Ash Borer epidemic for organizations, workplaces, or places of worship. To schedule a free EAB presentation, register at trees.nashville.gov or contact Metro Horticulturist, Jennifer Smith at 615-862-8708.

A free, public talk about the Emerald Ash Borer is being held October 18, register now at https://crc.kindful.com/register/river-talk-october-18-2018.

 

[i] http://emeraldashborer.info/

 

[ii] https://www.nashville.gov/Public-Works/Community-Beautification/Tree-Information.aspx

 

Published in Greenspace
Friday, 19 October 2018 14:12

Nashville Farmers' Market - Night Market

The third Friday of each month, the Nashville Farmers' Market stays open late with a special Night Market. Join Socket for the October Night Market on Friday, 10/19 from 5-9pm. With special food, drinks, and activities, this event is free and open to all. https://www.nashvillefarmersmarket.org/night-market/ 

Published in Events
Saturday, 15 September 2018 21:27

Drive Electric Week Celebration

Join Socket at Nashville's Drive Electric Week celebration! Test drive or ride in electric cars, bikes, and scooters and get all your questions answered. This free event is open to all. Saturday, September 15th from 9am-noon at Nissan Stadium's Lot R. https://driveelectricweek.org/event.php?eventid=1554 

Published in Events
Wednesday, 05 September 2018 16:50

Finding Green Again

By Kelsi Stubblefield Lewis, intern with the Division of Sustainability, Fall 2018

Years ago, a little girl with a messy ponytail trekked through the woods with her friends, each of them clutching a trash bag in one hand. As they walked with their moms, the girls chatted and casually picked up abandoned cups, cans, and bottles. Eventually the trees grew sparse, and as the lake’s edge got closer the girls began to find empty bait boxes and sunscreen bottles, as well.

 

 It was “Lake Cleanup Day,” an annual tradition that everyone took very seriously, but none more so than the girl with the ponytail. When the moms would glance away, they would turn back to see that she had run off to check the edges of their route or had fallen behind combing through shrubs making sure that they had found all the trash. At the end of the day, the girl with the ponytail turned in her big bag of litter to the collection table with an equally big grin.  

 

On the drive home, she looked out the window at the sparkling lake and the towering trees. She thought about the deer, the foxes, and the fish that lived there. She thought about the families that hiked, swam, and fished there, too. She liked to think that because of something she had done, life was a little bit better for all of them. She felt good. She felt like Superwoman.

 

My dad and I hiking through the "Garden of the Gods" in Illinois

That little girl in the ponytail grew up in a small town next to that lake and those trees. She went to high school and joined the Outdoorsmen’s Club, where she learned how to better protect the nature that was very much still a part of her. As she got older, the girl found a new passion in reading and writing. Suddenly, her weekends were filled with not only family hikes, but with books and stories, as well.

 

When she turned eighteen, the girl decided that she wanted to move to Nashville and study writing at Lipscomb University.  

 

That girl was me! I did move to Nashville in 2015, and continued my journey to find “green” again.

 

As an English major, I was a student with a serious love of language, both reading it and composing it. I loved my classes and took pride in my work, but throughout my time at Lipscomb, I couldn’t help feeling like something was missing. When I thought about the future, or when I tried to picture what I wanted to do with my life, it was as if the picture wouldn’t quite come into focus, like one, tiny dial hadn’t quite clicked into place.

 

I fought with this feeling until last year, my junior year of college, when I walked in to one of my general education classes. As I sat down, our professor announced that a guest speaker would be presenting that day.

 

The speaker announced that she was a professor from our university’s Department of Environmental Sustainability. She had come that day to tell us about some exciting new ways that people were saving our planet’s resources. As she spoke, I hung on to every word. She said that our waters, our air, our land, and our trees were in danger, but there were so many amazing things that people were doing to help, and we could do them, too. For a moment, I was the little girl with the messy ponytail again.

 

A few days later, I declared my minor in Environmental Sustainability, and something (that felt a little like a tiny dial) clicked into place.

 

Since that click, I have had some incredible opportunities. I have studied environmental law, as well as many sustainable practices in the areas of agriculture, food, energy, and transportation. I found myself particularly interested in a sustainable agriculture practice called silvopasture, and I was able to present research on it at Lipscomb University’s Student Scholars Symposium this past spring.

 

My Scholars Symposium poster presentation on silvopasture, an agricultural practice that combines forestry and grazing

I have also worked with Lipscomb’s chapter of The Food Recovery Network, where we take leftover food from our university’s cafeteria and donate it to local nonprofits. I feel fortunate to have also had the opportunity to intern with The Nashville Food Project and to currently be interning with Socket, the Metro Department of General Services’ sustainability outreach program.

 

Me cutting fruit in the prep room at The Nashville Food Project

When I think about all of these opportunities and how they have shaped me, I am always humbled to trace it back to that one small moment in class.

 

Looking towards the future, there are still no specifics, but what I do know is that the picture of my future, much like the picture of my past, is green.  What I do know is that I want to spend my life doing something akin to picking up trash from my hometown lake; I want to do something that improves life for others in this world.

 

I’ve also come to accept that I’ll never save the world on my own. I’ll never be Superwoman, but that little girl in the messy ponytail still lives in me, and she’ll never stop trying.

Published in Greenspace
Friday, 10 August 2018 20:15

Eat Your Greens: A Vegetarian Journey

By Maryam Muhammad, intern with the Division of Sustainability, Summer 2018

Before I was even born, it was decided that I would be vegetarian. Fast forward 20 years later and here I am, stirring turmeric and chia seed muffin mix with one hand (recipe below) and searching for the latest nutrition breakthroughs with the other.

My version of a prank is posting a picture of myself eating a "burger" (veggie sandwich) from Five Guys on Facebook and watching my friends freak out!

My parents primarily had health in mind as the basis for our family being vegetarian. Having switched to the lifestyle in their twenties, they hopped aboard the health train early and haven’t looked back since. We lived in southern California for the first 9 years of my life, but when we moved to Middle Tennessee when I was 10, I often felt like a vegetarian in a steakhouse.

Through elementary up until high school, I was the kiddo with the crazy vegetarian lunches. I found myself constantly fielding questions about the things I ate (“No, Alicia, I don’t eat grass”) and explaining the concoctions inside my Tootsie Roll tin lunch box (“Yes, chili can be made without beef”). As frequent as these interrogations were, I felt pride in my lunch creations (I have been cooking since I can remember) and confident in the choices I continued to make.

It wasn’t until the end of high school that I learned the impact that eating more fruits and vegetables – and fewer animal products – has on the environment. While I had always focused on the human health benefits of a plant-based diet, I’m now learning the many benefits it has for the health of our planet. My internship with the Department of General Services Division of Sustainability this summer has given me the opportunity to dive into this research. Here are some highlights.

  • If cattle were their own nation, they would be the world’s third-largest emitter of greenhouse gases (GHGs).[i]

  • Livestock production contributes nearly one-fifth of all global GHG emissions.[ii]

  • Sector emissions could be reduced by 70% through adopting a vegan diet and 63% for a vegetarian diet, which includes cheese, milk, and eggs.[iii]

  • Adoption of a vegetarian diet worldwide would save 7.3 million lives by 2050.[iv]

So it seems that I have a host of reasons to continue to make the choices that I do and to encourage others to do the same. Just as taking shorter showers, composting, and taking the bus are proven methods to reduce your impact on the environment, adopting plant-based diet – or simply cutting back on your meat consumption – can be a profound step in your individual effort toward protecting the environment.

Oh, and did I mention… it’s delicious! Below, find two of my favorite recipes for healthy, tasty 100% vegetarian treats. Bon apetit!

 

Vegetable Stir Fry:

1 large pan

3-4 T olive oil

1 onion diced

3 garlic cloves chopped

1 carrot chopped

1 bell pepper diced

1 large broccoli crown chopped

salt and pepper to taste

 

Heat oil in pan at medium-hi heat until hot. Add garlic, onion, and bell pepper and reduce temp to medium. Once onions are translucent, add broccoli and carrot. Cook until broccoli and carrots are tender (about 10 mins) and add salt and pepper to taste.

 

Try adding these flavors:

Sweet Chili: 2 extra garlic cloves, 2 T honey, 1 T red chili paste, juice from ½ Lemon, 1 T white wine vinegar

Sesame: Substitute 1-2 T olive oil with sesame oil, 2 T honey, 1.5 T Soy Sauce, 2 t ginger, 1 T white wine vinegar

 

 

Chia Seed Muffins:

4 cups oats

4 t cinnamon

2 t nutmeg

2 t cardamom

1 T turmeric

¼ cup chia seed

1 t baking powder

½ t salt

2/3 cup of milk (of your choice)

2 t vanilla extract

¼ cup blackstrap molasses

 

Add anything you want: dark chocolate chips, a mashed banana, dried cranberries, dates, shredded coconut. Mix everything in a bowl, drop them in a 12 yield muffin tin, and pop them in a preheated oven at 375 degrees for 20 mins. They aren’t sweet, so I substitute them for toast in the morning and top with almond butter and honey!


 

 

Published in Food
Friday, 21 September 2018 17:50

Park(ing) Day 2018

Join Socket and the Department of General Services as we partner with the Metro Planning Department and Tennessee Department of Health to help transform Broadway's parking spots into mini-parks, filled with seating, games, and more. Learn more about this annual tradition here: https://www.civicdesigncenter.org/events/parking-day

Published in Events
Wednesday, 25 July 2018 13:39

Hot Summer Tips

Socket the Dog has some helpful hints as we celebrate summer. These hot tips will help keep you and your family cool all season long!

Published in Wellness
Monday, 11 June 2018 20:39

Nashville Loves Its Trees

Trees are one of the most integral components of the urban landscape. Trees sequester carbon dioxide from the atmosphere, improve air quality, reduce soil erosion by catching precipitation in their leaf canopies, and lower air temperatures in urban areas – among many other things.

Published in Greenspace
Wednesday, 06 June 2018 14:28

How to Have a “Whole” Healthy Day

When we think health, we typically think of nutrition and exercise, but we often forget about our mind. Health encompasses both the body and mind. Here are some tips to bring “whole” health to your day.

Published in Wellness
Friday, 27 April 2018 12:35

Arbor Day

As Socket relaxed under a shade tree recently, he began to wonder: “Why do we celebrate trees each year on Arbor Day?” Socket did some digging and revealed the answers!

Published in Greenspace
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