Deadline for submission: July 31, 2023 

The United States Department of Agriculture (USDA), Agricultural Research Service (ARS) funds expeditions to arrange germplasm exchanges with foreign genebanks.  Germplasm exchange...

Deadline for all exploration proposals: July 31, 2023 

Deadline for draft proposals (foreign explorations only): May 31, 2023 

The United States Department of Agriculture (USDA), Agricultural Research...

Speaker Gerald Dieleman, Senior Director, Horticulture at Assiniboine Park Conservancy, will share with you an introduction to The Leaf and the new Outdoor Gardens of the Leaf at Assiniboine Park. How The Leaf is plays a role in connecting people to...

In gardens where woody plants abound, arborists are key members of our horticultural teams- whether they're on staff full time or consult as needed. They help to care for sick trees and damaged trees, but they also keep healthy trees healthy...and so...

Needlecast and needle blight are terms applied to a variety of foliage disorders of many coniferous species. These diseases are usually more severe on young trees or on trees growing outside of their natural range. Disease severity and corresponding...

The Monarch butterfly eastern population (Danaus plexippus) is in decline primarily due to habitat loss. Current habitat restoration programs focus on re-establishing milkweed, the primary food resource for Monarch caterpillars, in the central United...

Even the mention of lavender evokes the distinct fragrance of the flower. This beautiful flower has been used to make perfumes and essential oils since time immemorial. The aesthetics of the flower have captured imaginations worldwide. So what makes...

The Morton Arboretum has released the results of its 2020 Chicago region tree census. Findings include the loss of an estimated 6 million ash trees, felled by the emerald ash borer. Chicago's canopy cover decreased from 19% to 16%, largely because of...

This article from Frontiers in Forests and Global Change explores large-scale global reforestation goals in the US. The authors used GIS analyses, surveys of nursery managers and foresters, and literature synthesis to assess the opportunities and...

Results are in from one of the most significant studies ever completed on Delaware’s bees. From 2018-2019, Mt. Cuba Center partnered with Matthew J. Sarver of Sarver Ecological to scientifically measure which species of bees were attracted to our...

Join Cassie Meador and Dr. Jamē McCray for an experiential workshop to introduce Moving Field Guide techniques and model kinesthetic activities you can use to support learners of all ages in connecting to their bodies, each other, and their environment...

The green industry is the driver of plastic plant pot production and use. This report describes the
development of this industry, its phenomenal growth and successes, and the resulting significant
negative ecological effects from the...

Southern pine species such as loblolly, longleaf, shortleaf, and slash cover much of the 
southeastern U.S., and are a critical component of the region’s economy.  Loblolly pine is the 
most widely planted species in the southeastern...

Haiti is home to an incredible flora of around 5,000 documented plant species. Within these, over 210 endemic shrub and tree species have been identified. These plants have only one home in the world, and it is here. Many other species have small...

Large-scale global reforestation goals have been proposed to help mitigate climate change and provide other ecosystem services. To explore reforestation potential in the United States, we used GIS analyses, surveys of nursery managers and foresters,...

Changes in phenology induced by climate change occur across the globe with important
implications for ecosystem functioning and services, species performance and trophic
interactions. Much of the work on phenology, especially leaf out and...

In December 2020 the IUCN World Heritage Outlook 3 found that climate change is now the biggest threat to natural World Heritage globally. This report, IUCN World Heritage Outlook 3, builds on three cycles of Conservation Outlook Assessments undertaken...

Periodic fires are a normal part of the lifecycle of many ecosystems, but climate change is creating mega-fires that instead of supporting biodiversity threaten to destroy it. In the aftermath of the worst fire season in Australia’s recorded history,...

Since a devastating fungal blight popped up in the Bronx Zoo in 1904 and went on to kill at least 3 billion chestnut trees, North American forests have been swept by one plague after another, including a fungus that kills elms and an aphidlike insect...

The contributions of crop wild relatives (CWR) to food security depend on their conservation and accessibility for use. The United States contains a diverse native flora of CWR, including those of
important cereal, fruit, nut, oil, pulse, root...