A Message From Our President |
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Don't Miss ACTC's Annual Conference & Pest Management Workshop Next Month! |
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Serve on the ACTC Board of Directors! |
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Screwbean Mesquite (strombocarpa pubescens) is a slow-growing tree native to the Desert Southwest of the United States and northern Mexico. The tree typically reaches up to 23 feet and has a vase-shaped canopy that casts light, filtered shade—ideal for walkways and patios—though its messy litter and invasive root system require maintenance and training. Its bipinnate leaves are about one inch long, with six to eight pairs of tiny quarter-inch leaflets, and its stems are armed with short, straight thorns. In spring, it produces yellowish flowers in elongated spikes, followed by its most distinctive feature: tightly twisted, spiral seedpods. This shape may have been an evolutionary defense against seed predators. The nutrient-rich seedpods are high in protein, fiber, minerals, and with a sweet, molasses-like flavor, have long been an important food source for Indigenous peoples, who ground them into meal, baked them into cakes, or brewed them into drinks. The pods also feed wildlife such as birds, rodents, and coyotes, while the dense branches provide shelter and nesting sites. |
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2-Day Certified Arborist Review in SpanishAugust 21 & 22, 2025
7:00am - 4:00pm Gilbert, AZ
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2025 Annual Conference & Pest Management Workshop
September 11 & 12, 2025 Prescott, AZ
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Women In Arboriculture Workshop
September 12, 2025 Prescott, AZ
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Tree Care for Birds and Wildlife: Importance of Wildlife in Habitats
October 18, 2025 9:30am - 3:00pm Camp Verde, AZ
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Chop or Adapt? 6 Ways To Fix Sidewalks Without Losing Urban Trees
Strong Towns
When [Rhode Island] State Representative June Speakman reached out to ask how her town might save dozens of mature street trees threatened by sidewalk repairs, she touched on a dilemma facing communities across North America. It’s a classic clash: roots lifting concrete panels, sidewalks becoming uneven, and a city’s instinct to “solve” the problem by removing the trees entirely. But should we chop — or adapt? The truth is, sidewalks and trees don’t have to be enemies. |
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Hot In The City: Why The Wrong Trees In The Wrong Places Matters
Forbes
In the last days of last month, the death toll tripled in several major European cities in the face of sweltering heat. Milan, Paris, Barcelona and London were the worst hit. With more than two thirds of the world’s population expected to live in cities by 2050, the race to cool them down is on. Tree planting has become an important part of urban heat mitigation efforts. But a Cambridge University-led study shows that planting the wrong species or combinations of trees may not just reduce the benefits, but actually make things worse, elevating night time temperature.
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Thank You to Our Annual Sponsors |
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