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Pest Management

WVU Extension Service agents and specialists field complaints from people and property owners across the Mountain State. Learn about common pests.

Browse the Pest Identification Guide

Keep your lawn, garden and buildings pest-free with an integrated pest management strategy. WVU Extension Service helps prevent, identify and find solutions to problems.

Pest Identification Guide

Asian Lady Beetles

Asian Lady Beetles

Asian lady beetles are attracted to light-colored exterior surfaces, such as white or yellow, and will often congregate in areas exposed to afternoon sun.

Asian Lady Beetle Description
Asian Lady Beetle Damage
Asian Lady Beetle Control
bed bug

Bed Bugs

Eradication of bedbugs requires a multistep approach that includes thorough cleaning, applying pesticides, and preventing reinfestation.

Bed Bug Description
Bed Bug Damage
Bed Bug Control
stink bug

Brown Marmorated Stink Bugs

Stink bugs can enter cracks as small as 1/16 to 1/8 inch around windows, doors, eaves and overhangs, dryer vents, and are an annoyance indoors.

Stink Bug Description
Stink Bug Damage
Stink Bug Control
carpenter bee

Carpenter Bees

Repeated nest building by many carpenter bees over successive years can result in structural damage to wood.

Carpenter Bee Description
Carpenter Bee Damage
Carpenter Bee Control


Consider postponing the planting of new trees and covering existing young trees with a fine mesh netting during cicadas egg-laying period.

Periodic & Annual Cicadas
Cicada Damage
Cicada Control
potato bug

Colorado Potato Beetles

Plants commonly attacked by Colorado potato beetle include potato, eggplant, tomato and pepper.

Colorado Potato Beetle Description
Colorado Potato Beetle Control

Adult spotted and striped cucumber beetles on a leaf.

Cucumber Beetles

Cucumber beetles are one of the most serious insect pests of cucurbit vegetables (e.g., cucumbers, melons, pumpkins, squash).

Cucumber Beetle Description
Cucumber Beetle Damage
Cucumber Beetle Control
Fall webworm on a tree.

Fall Webworms

Fall webworm larvae are a common defoliator of a number of ornamental and fruit trees throughout West Virginia.

About Fall Webworm
Fall Webworm Control
harlequin beetle

Harlequin Bugs

Plants commonly attacked by harlequin bugs include broccoli, Brussels sprouts, cabbage, cauliflower, collards, kale, kohlrabi, mustard, radish and turnips.

Harlequin Bug Description
Harlequin Bug Damage
Harlequin Bug Control
japanese beetle

Japanese Beetles

Adult Japanese beetles feed on the foliage, flowers, and/or fruit of more than 300 different plant species and are considered a major pest of many popular horticultural and agricultural plants.

Japanese Beetle Description
Japanese Beetle Damage
Japanese Beetle Control
adult plum curculio

Plum Curculio

Plum curculio cause considerable damage to apple, pear, apricot, peach, plum, nectarine, cherry and other tree fruits.

Plum Curculio Description
Plum Curculio Symptoms
Plum Curculio Control
yellow poplar weevil

Poplar Tree Pests

Tuliptree scale and yellow- poplar weevil can both cause a sticky, black substance to cover yellow (tulip) poplar trees, damage leaves and scar the ground.

Tuliptree Scale Damage
Poplar Weevil Damage
Poplar Tree Pest Control
A snail on a leaf.

Slugs & Snails

Most damage caused by slugs and snails occurs when they feed directly on seeds or kill seedlings that have germinated and emerged from the soil.

Slug & Snail Descriptions
Slug & Snail Damage
Slug & Snail Control
adult spotted lanternfly on bark

Spotted Lanternflies

Be on the lookout for a new invasive insect pest, the spotted lanternfly, which attacks several host plants such as grapes, hops, and various fruit and timber trees.

Spotted Lanternfly Description
Spotted Lanternfly Damage
Spotted Lanternfly Control
Spotted Wing Drosophila

Spotted Wing Drosophila

Spotted wing drosophila targets any fruits, vegetables, and/or ornamentals that have soft skin, presenting an easy target for gravid females to deposit their eggs.

Spotted Wing Drosphilia Description
Spotted Wing Drosphilia Damage
Spotted Wing Drosphilia Control
Tick on a leaf


If an attached tick is found, remove it using thin-tipped tweezers or forceps. Grasp the tick as close to skin as possible and pull the tick upward with steady even pressure to remove the tick with its mouthparts intact to reduce the risk of infection.

Tick Descriptions
Tick Management
white grub

White Grubs

White grubs feed below the soil surface on the roots of grasses. Early symptoms of feeding injury include grass wilting or yellowing, and the appearance of scattered, dead patches of grass.

White Grub Description
White Grub Damage
White Grub Control

Wildlife as Pests

Beautiful in their natural habitat, wildlife can be problematic pests where people live, work and play. Learn what you can do to avoid and control wildlife pests.

Feral Swine

IPM Chronicle

RNAi: Silencing genes for pest management

computer screen close up with gene sequence numbers

The previous issue of the IPM Chronicle discussed the development of gene editing techniques to enhance crops. The discussion will now turn to a molecular technique that provides the ability to turn off (silence) genes within an organism’s cells. This process of silencing genes can be accomplished through a process called ribonucleic acid interference or RNAi.

Developed in the 1990s, RNAi is now being studied as a tool for managing various pest species. So what is RNAi, and how exactly can it be used for pest management? Before these questions can be answered, one must first understand the connection between DNA and proteins.

Read this article and more in the latest edition of the IPM Chronicle

AgBeats Integrated Crop Management Series

Register to learn with WVU agents and specialists a free, bi-weekly integrated crop management webinar conference call series.

More information about the 2018 AgBeats will be posted in mid-April.

Expert Pest Management Help