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Virginia Cooperative Extension
Natural Resources


As of July 1, 2020 Prince William County Office buildings will have some entrances open to the public.  However, VCE Prince William will continue to operate on an appointment only basis, as most VCE Staff and Master Gardener volunteers continue to work remotely.  To make an appointment or bring a plant or insect sample, please contact Christina Hastings by emailing   Please note that photos of plant and insect problems can alternately be submitted via email to (3MB per email, please use multiple emails for larger photos).


In person classes are postponed until further notice, but free, virtual classes are held each Wednesday at 11 am.  To see the class schedule select this link Horticulture Classes. To register to receive the link to the class contact the Extension Horticulture Help Desk at or

All classes as well as Teaching Garden tour videos can be found on our YouTube channel at the following link, 

The BEST Lawns Program has resumed as of June 1, 2020.  If you are interested in having a BEST Lawns done for your lawn and/or have questions, please contact Natali Walker at

Staff and volunteers with the Prince William Cooperative Extension’s Environment and Natural Resources program provide educational programs for individuals and business to implement sound practices producing aesthetically pleasing landscapes that have minimal negative impacts on the environment. Programs include:


Coping With Stress in the Agricultural Community, the attached brochure provides information on common responses to stress, ways to relieve stress and referral information for farmers who are struggling to cope with the effects of weather, low prices, crop losses and financial instability.    For a copy of the brochure click on the link Coping with Stress in the Agricultural Community


Giant Hogweed is an invasive plant that has been found in several Virginia localities.  Read more about Giant Hogweed and its lookalikes below.  For assistance with any weed identification contact the Extension Horticulture Help Desk.

Giant Hogweed identification and look alikes 

New VT publication on Giant Hogweed

Boxwood Blight was first discovered in Virginia in 2011 and many counties have had positive identifications of the disease since then. This disease poses a serious threat to Virginia's boxwoods. For more information on boxwood blight, please visit the Boxwood Blight Task Force page.

This 11-part video series covers topics important to preventing the spread of boxwood blight in Virginia, including symptoms of the disease, disease spread, and prevention measures. The videos are appropriate for homeowners as well as landscaping professionals who may encounter the boxwood blight in their work.

To view Virginia Cooperative Extension Fairfax Office's new video series on boxwood blight, please visit: YouTube video Series here!


The Spotted Lanternfly has been found north of Winchester in Virginia.  This insect is a pest of grapes, peaches, hops, and apples. It is commonly associated with tree-of-heaven, Ailanthus altissima. It has the potential to be a serious pest of agriculture and home gardens in Virginia. A new Virginia Cooperative Extension publication on Spotted Lantern Fly can be found at:                               Spotted lantern fly ENTO-180NP 2018.pdf

If anyone has questions or believes they have found this insect, please report it with location and photos to this website: 

Below are resources for identifying different stages of the Spotted Lanternfly's life cycle

Spotted Lanternfly Adult Look-alikes

Spotted Lanternfly Egg Mass Look-alikes

Spotted Lanternfly Immature Look-alikes

Spotted Lanternfly prefers the Tree of Heaven, Ailanthis altissima.  Learn how to identify Tree of Heaven and some of its look alikes.


Help us go green and save more than just a tree! For FREE lawn, landscape and garden updates, register to receive notifications by e-mail.

Check out our free horticulture classes and the VCE Prince William Master Gardener program


Our Facebook page has daily articles and diagnostic information of interest to home gardeners.  Search for VCE Prince William Master Gardeners

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Virginia Cooperative Extension

Environment and Natural Resources

8033 Ashton Ave. Suite 105

Manassas VA 20109


Virginia Cooperative Extension complies with the Americans with Disabilities Act. If you are a person with a disability and require auxiliary aids services or other accommodations for a workshop or meeting please discuss your accommodation needs at least five days prior to the event with Virginia Cooperative Extension 703-792-6289/TDD PC 1-800-828-1120.


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