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Bartlett: Needle Diseases of Conifers

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...

Resource
9/15/21
Winter Salt Injury and Salt-Tolerant Landscape Plants

This publication focuses on recognizing and preventing plant damage caused by de-icing salts, evaluates the pros and cons fo alternatives to rock salt, and provides a list of salt tolerant plants. 

Author: Laura Jull, assoicate professor of...

Resource
6/18/21
A Landscape-Level Assessment of Restoration Resource Allocation for the Eastern Monarch Butterfly

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...

Resource
5/25/21
Japanese Garden Plants for Hot Dry Climates

Traditional Japanese Garden plants languish in hot dry zones. Selecting alternative plants more suited for these climates increases success and enjoyment of your garden.. The plants highlighted in this article are selected for hardiness and suitability...

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5/14/21
Chicago Region 2020 Tree Census

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...

Resource
5/4/21
Challenges to the Reforestation Pipeline in the United States

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...

Resource
4/29/21
Mt. Cuba Center Native Bee Survey

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...

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4/29/21
Loblolly Pine Health in the Southeastern U.S.

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...

Resource
3/15/21
Fungi associated with galleries of the emerald ash borer

The emerald ash borer (EAB) is an exotic forest pest that has killed millions of ash trees in the 
United States and Canada, resulting in an ecological disaster and billions of dollars in economic 
losses of urban landscape and forest...

Resource
3/15/21
The State of Knowledge of Soil Biodiversity

This report brings together the most current knowledge of soil life and how it supports nature and humanity. More than 300 scientists contributed to the report, which provides an overview of soil biodiversity, its contribution to supporting ecosystems...

Resource
1/14/21
An Assessment of the Need for Native Seeds and the Capacity for Their Supply: Interim Report (2020)

This report describes the first phase of an examination of some of the nation’s needs for
native plant seeds (a shorthand term to include all forms of native propagative plant material)
and of the capacity to meet those needs. Across the...

Resource
12/8/20
Native Plant Materials Use and Commercial Availability in the Eastern United States

In 2018, the Mid-Atlantic Regional Seed Bank (MARSB) and the University of Maryland
Extension conducted an internet survey of the native plant and seed user community throughout
the Eastern United States. The authors developed an...

Resource
10/21/20
Becoming Sentinels Against Invasive Plants Workshop Materials

Prior to Workshop  - 

  1. Each registrant should read the attached Guidelines for Listing, Categorizing and Sharing Information on Plant Taxa Spreading from Cultivation at Public Gardens in North America (Guidelines).
     
  2. ...
Resource
10/21/20
Wild Plants and You in the Times of COVID19 and the Essential Journey to Sustainability

With the current global spotlight on wild animal markets as a possible source of the COVID-19 epidemic, it is easy to forget that the biggest flows of “wildlife” in trade involve plants, not animals. This report summarises what is known about the trade...

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6/19/20
Caution Needed When Predicting Species Threat Status for Conservation Prioritization on a Global Scale

A widely accepted approach to assess extinction risk, and a key source of data underpinning the IPBES report, is the IUCN Red List of Threatened Species (hereafter Red List). However, with only 9%of plants represented by assessments at the latest...

Resource
5/4/20
A Master Gardener Survey: Promoting Pollinator-friendly Plants Through Education and Outreach

As land-use patterns change over time, some pollinating insects continue to decline both in abundance and diversity. This is due, in part, to reductions in floral resources that provide sufficient nectar and pollen. Our overall goal is to help increase...

Resource
1/28/20
The Red List of US Oaks

The Red List of US Oaks report details for the first time the distributions, population trends, and threats facing all 91 native oak species in the U.S. using the IUCN Red List threat assessment platform, including updated versions of previously...

Resource
10/14/19
Genome sequences of horticultural plants: past, present, and future

Horticultural plants play various and critical roles for humans by providing fruits, vegetables, materials for beverages,and herbal medicines and by acting as ornamentals. They have also shaped human art, culture, and environments and thereby have...

Resource
10/11/19
Urban plant diversity in Los Angeles, California: Species and functional type turnover in cultivated landscapes

Urbanization is a large driver of biodiversity globally. Within cities, urban trees, gardens, and residential yards contribute extensively to plant biodiversity, although the consequences and mechanisms of plant cultivation for biodiversity are...

Resource
9/27/19
URBAN TREE CANOPY ASSESSMENT: A Community’s Path to Understanding and Managing the Urban Forest

An Urban Tree Canopy (UTC) assessment, which provides a measure of a community’s tree canopy cover, is important for understanding the extent of a community’s forest or tree resource. UTC assessments are often used for establishing and implementing...

Resource
8/1/19

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