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Woodchuck (Marmota monax)

Prevention and Control of Wildlife Damage 1994
Woodchuck Control
University Pubs
 
 
 
 
 
 
 
 

Woodchuck is known by a variety of terms, including groundhog, whistlepig even gopher.

 

Plants woodchucks have eaten (as told to us by our visitors) We would love to know what woodchucks have eaten in your garden. We would also like to know the scientific names of the these plants as well. Please feel free to contact us if you have comments on these or any other plant you have noticed damage from Woodchucks or resistance to woodchucks. Webmaster

Plants Woodchucks Have Eaten

  • Asiatic Day Lilies (Lilium)
  • Basil (Ocinum Basilicum)
  • Broccoli (Brassica Oleracea)
  • Calendula
  • Campanula persicifolia is the scientific name for a variety of Peachleaf Bellflower
  • Carrot greens - carrot is (Dacus Carota var. sativus)
  • Centaurea
  • Cilantro (Coriandrum sativum)
  • Columbine (Aquilegia)
  • Cosmos (Cosmos Bipinnatus) (two people)
  • Cucumbers
  • Dahlias
  • Daisies (Chrysanthemum family)
  • Delphinium (even though they are poisonous, they still ate mine)
  • Echinacea is the scientific name for Purple Coneflower (Echinacea Purpurea)
  • Eggplant (Solanum Melongena)
  • Gayfeather/Blazingstar (Liatris)
  • Gazania
  • Green Beans (Phaseolus vulgaris)
  • Hollyhocks
  • Hot Peppers/peppers (Capsicum Annuum)
  • Lettuce (Lactuca Sativa)
  • Marigolds (Tagetes) (one report they were avoided)
  • Mums (Chrysanthemum)
  • Nasturtiums (Tropaeolum Majus)
  • Onion (leaving the onion eating the stems)
  • Onion Chives
  • Pansies (Viola x Wittrockiana)
  • Parsley (Petroselinium Crispum)
  • Peas (Pisum Sativum)
  • Petunias (Petunia Hybrida)
  • Phlox
  • Poppies (Papaver)
  • Portulaca
  • Pumpkin vines - pumpkin is (Curcurbita Pepo)
  • Pyrethrum
  • Queen Anne's Lace/wild carrot (Dacus Carota)
  • Rosemary (Rosmarinas Officinalis)
  • Rudbekia fulgida/hirta is the scientific name for Black-Eyed Susan (chucks ate these all season)
  • Sage (Salvia)
  • Sunflowers (Helianthus)
  • Strawberries (Fragaria)
  • Swiss Chard (Beta Vulgaris)
  • Violets (Viola)
  • Yarrow (Achillea)
  • Zinnias (Zinnia Elegans) (2 people)
  • Zucchini

Possible Resistance to Chucks.

  • Ageratum
  • Astilbe
  • American Pokeweed (Phytolacca americana L.)
  • Artemesia
  • Blanket flower (Gaillardia ~ the low growing variety)
  • Bleeding heart (Dicentra, spectabilis & exemia)
  • Blue Cohosh/Papoose Root (Caulophyllum Thalictroides)
  • Bluestar (Amsonia)
  • Bronze Fennel ( Foeniculum Vulgare var. Rubrum)
  • Butterfly weed (Asclepias Tuberosa)
  • Capmint (Nepata) (two reports)
  • Chives (Allium)
  • Coreopsis (Scientific Name for Tickweed)
  • Coral bells (Heuchera & Hercherella)
  • Creeping Jenny/moneywort (Lysimachia Nummularia)
  • Daffodils (Narcissus)
  • Dahlias (Hemerocallis) even though next to marigolds (two reports)
  • Daylillies (Hemerocallis have three reports that this plant is avoided)
  • Dianthus (scienfific name for Garden Pink) (have three reports that this plant is avoided)
  • Ferns
  • Feverfew (Tanacetum Parthenium/Chrythanthemum Parthenium)
  • Foxglove (Digitalis)
  • Geraniums (a report of woodchuck avoidance)
  • Gypsophilia
  • Heather (Calluna)
  • Horehound (Marrubium Vulgare)
  • Hosta
  • Iris
  • Jack-in-the-Pulpit (Arisaema Triphyllum)
  • Lamb's Ear (Stachys Byzantina)
  • Lavender (Lavandula)
  • Leadwort/Plumbago (Ceratostigma Plumbaginoides)
  • Lemon Balm (Melissa Officinalis)
  • Lenten rose (Helleborus)
  • Lily-of-the-Valley (Convallaria)
  • Montbretia (Crocosmia)
  • Monkshood (Aconitum)
  • Nicotiana
  • Ornamental grasses
  • Pasque flower (Pulsatilia Vulgaris)
  • Peony (Paeonia)
  • Pinks (Dianthus, but rabbits 'em)
  • Pumpkins (Curcurbita Pepo)
  • Regal Lily
  • Rock Soapwort (Saponaria Ocymoides)
  • Russian sage (Perovskia)
  • Salvia
  • Sedum
  • Snapdragon
  • Squash (Curcurbita Pepo, C. maxima, C. moschata)
  • Sun drops (Oenothera)
  • Sweet Allysum
  • Sweet woodruff (Galium Odoratum)
  • Thymes (Thymus Vulgaris)
  • Tickseed (Coreopsis, but only the threadleaf variety, all others are eaten)
  • Tomato plants. Known to eat them but appear to do so only when desperate.
  • Torch Lily (Kniphofia)
  • Turtlehead (Chelone Obliqua)
  • Valarian (Centranthus)
  • Wild ginger (Asarum)
  • Windflower (Anemone) Roses
  • Yarrow

University Publications

Managing Woodchuck Problems in Missouri--University of Missouri HTML

Managing Woodchucks--University of Kentucky HTML

Woodchucks--Perdue University PDF

NEBRASKAland Magazine/Nebraska Game and Parks Commission PhotoNEBRASKAland Magazine/Nebraska Game and Parks Commission Photo
 

 

Burrow fumigants, traps and shooting provide the first level of control in large field situations. Small acreage and garden owners may first attempt exclusion. F Scarecrows and other effigies can provide temporary relief if woodchucks are not used to people. T Trapping can be used as an alternative to burrow fumigation. Use No. 2 or larger steel foot hold traps or box traps at burrow entrances or in animal travel lanes. Use guide sticks or fences to funnel animals. Bait with fresh apple slices, carrots or lettuce. L Many states consider woodchucks a legal game animal and a valid state game license is required. If legal, use .22 caliper centerfire rifles with telescopic sights. if legal, and at ranges within 25 yards, one might use a 12-gauge shotgun with No. 4 or No. 6 shot. Aluminum phosphidet tablets may be legal as a burrow fumigant. Use as per label. Body grip kill traps (IE Conibear #'s 110, 160, and 220) , if legal, can be an alternative to fumigants under structures. Can use unbaited in woodchuck travel lanes or at main burrow entrances. E Use heavy wire 2-inch mesh fences at least 3 feet high, bending the lower edge outward and burying 1 to 2 inches below ground. Alternatively, bury the fence to a one-foot depth. At the top, use an electrified wire or bend the top 15 inches outward to 45 degrees to prevent climbing.

Damage eat alfalfa, soybeans, vegetables. Gnaw or claw trunks and stems; outdoor tubing, wiring.

Body gripping traps
Description: Used for burrowing rodents and for carnivores must be set safely
Photo Credits: Dallas Virchow

Hoary Marmot

Attributes Can climb Does Hibernate Is Diurnal

Signs Large burrow openings of 8 to 12 inches with mounds of dirt. Trails and trampled areas in crops and pastures.

These "ground hogs" or "whistle pigs" are usually grizzled brownish gray, chunky 5 to 10 pound animals with short tails. When startled, they produce a low "tchuck, tchuck" followed by a shrill whistle. They may run slowly into burrows, usually within 150 feet away. Occasionally they bask in sun on low lying walls, rocks or logs. They are good climbers.

Tree Damage Fruit trees and ornamental shrubs

Lawn Damage Mounds and burrows can damage lawns and turf.

Structural Damage Occasionally, their burrowing can weaken dikes and foundations. Also, they can gnaw on undergroud power cables and utility lines, rubber hoses in parked vehicles.

Agricultural Damage Woodchucks are a type of marmot that live in theopen farmlands, fields, and pastures of the northeastern U.S. and Canada. They have recently extended their range to west of the Missouri River. They feed on alfalfa, clovers, fruit tree and ornamental shrubs, soybeans, beans, squash, peas, and other garden plants. Their mounds can slow or damage mnechanical harvesting equipment.

Health Hazard A similar species, the Yellow-bellied marmot, of the Rocky Mountain states, is a host for the tick that transmits Rocky Mountain Spotted Fever.

Safety Hazard Occasionally prized livestock may mistep into woodchuck burrows and injure themselves.

Toe Pad Marks on Hind Feet five

Heel Pad Marks up to 3 inches wide X 4 inches long including long claws

Claw Marks Yes

 
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