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Resources for Forest Pests

Title Available As Summary Date ID Author
Banded Ash Borer
This fact sheet describes the banded ash borer, a beetle pest of hardwood trees.
Jul 21, 2026 ENTO-133NP (ENTO-650NP)
Locust Borer
Locust borer (Megacyllene robiniae) is a native longhorn beetle that attacks black locust (Robinia pseudoacacia) and its ornamental cultivars. This publication explains how to identify adult beetles, larvae, and pupae; describes their life cycle from egg-laying in bark cracks to adult emergence; and outlines the damage caused by larval tunneling, including weakened limbs, crown decline, and reduced timber value. It also discusses the insect’s distribution across areas where black locust grows and provides management recommendations. Preventive strategies include proper tree siting, pruning, watering, and, for high-value trees, carefully timed insecticide applications and systemic treatments to reduce new infestations.
Sep 9, 2026 ENTO-141NP (ENTO-662NP)
Fall Cankerworm
Fall cankerworm (Alsophila pometaria) is a native North American defoliating insect that feeds on a wide range of broadleaf trees, particularly oaks in Virginia. This publication explains how to identify adult moths and larvae, distinguish fall cankerworm from the similar spring cankerworm, and recognize signs of infestation and tree damage. It describes the insect’s life cycle, seasonal activity, distribution, and history of outbreaks, including impacts on forests and urban landscapes. The publication also outlines the effects of repeated defoliation on tree health and presents management strategies, including biological controls, insecticide treatments, Bacillus thuringiensis var. kurstaki (Btk), and tree banding for monitoring and control.
Sep 9, 2026 ENTO-223NP (ENTO-656NP)
Managing the Asian Longhorned Tick: Checklist of Best Practices for Equines
While primarily a concern on cattle, Asian longhorned tick (ALT) feeds on a variety of hosts, including horses and other equines. ALT reproduces without mating so tick densities can build quickly, and large numbers of ALT can be found on individual animals. ALT larvae, nymphs, and adults may all be found at the same time on the same animal. Wildlife, such as deer, small mammals, and birds, serve as alternative hosts for ticks and assist their spread throughout pastures. Managing ALT can be very difficult because this tick spends most of its life off the host and on the ground. The following recommendations are suggested to help protect your animals.
Jul 23, 2025 ENTO-348NP (ENTO-619NP)
Best Management Practices for Spotted Lanternfly on Christmas Tree Farms
A factsheet on best management practices for Christmas tree growers dealing with spotted lanternfly on their farms.
Jun 1, 2026 ENTO-402NP
Redheaded Ash Borer Mar 5, 2021 ENTO-142NP (ENTO-428NP)
Emerging Tick-Borne Arboviruses: Powassan virus, Heartland virus, and Bourbon virus Mar 21, 2022 ENTO-491NP
Tick-Borne Diseases in Virginia May 16, 2022 ENTO-504NP
Pest Alert: Asian Longhorned Beetle Apr 17, 2023 ENTO-556NP
Recognizing Asian Longhorned Beetle in Virginia Apr 25, 2023 ENTO-557NP