Updated on September 7, 2026. Ratings below are university lists, not a guarantee for your street. Confirm current lists on the linked extension pages before you fence a whole patch.
Yes. Deer eat sweet corn — seedlings, silks, and milk-stage ears. Iowa State’s fruit-and-vegetable list, compiled from Rutgers, Cornell, and Michigan State and last reviewed July 2022, files corn (Zea mays) under fruits and vegetables frequently severely damaged, the same column as beans, lettuce, strawberries, carrots, and apples. UConn’s home-garden sheet is more specific: “corn” sits in the occasionally-damaged column, while sweet corn is a deer favorite. That split is the whole backyard problem. Dent corn in a 40-acre field can lose a few rows on the woodlot edge and still make a crop. A 4-by-20 sweet-corn patch is the entire harvest.
This is a garden-and-patch page. Woods browse — acorns, forbs, woody twigs — lives on what deer eat. The rest of the planting list is the deer-proof garden guide. Same-season neighbors: tomatoes and cucumbers.
| Plant | Sweet corn (Zea mays var. rugosa / sugary types). Same species as field corn. Sugar (su), sugary enhanced (se), and supersweet (sh2) cultivars. Annual. One harvest window per planting. |
|---|---|
| Verdict | Yes. Frequently damaged on the Iowa compile. UConn lists sweet corn as a favorite, separate from generic “corn.” |
| What they eat | Newest leaves from inches tall; silks and tassels at pollination; tips of ears (husk often left on) in the milk stage. They will carry a whole ear into the woods. |
| Peak | Silking and tasseling, then the three days before you meant to pick. Dawn and dusk match deer feeding times. |
| What works | An 8-foot woven-wire garden fence; a short electric polytape trainer around a small patch, baited at nose height; pick the day the silk browns. |
| What does not | A 4-foot picket; a scarecrow left in one place; dumping leftover ears for “the yard deer.” |
| Official sheets | Iowa State deer-susceptibility list · Iowa State deer damage management · UConn deer-resistant vegetables · USDA Vegetables 2025 Summary |
What deer eat on a sweet-corn plant, and when
Two different raids. Confuse them and you will protect the wrong week.
Vegetative. Iowa State’s wildlife page is the best backyard diagnostic: deer target the newest, greenest growth from the time the corn is a few inches tall through the rest of the season. They get more determined when plants reach about 2.5 feet — a comfortable browsing height for both bucks and does — and they often leave the horizontal leaves intact while they take the new shoots at that height. That high, ragged browse is how you separate deer from animals that knock stalks over or work the base. Deer have no upper incisors. They grab and tear. Minnesota Extension calls the result rough or shredded, not a knife cut. Michigan State’s commercial sweet-corn notes add that plants often recover from early foliage browsing. One night of silk-clipping is a different story.
Reproductive. MSU is blunt: deer may attack corn at almost any growth stage, but research puts the most critical protection window at silking and tasseling. They eat silks. Eaten silks mean poor pollination, small ears, and blanks on the cob even if the plant is still standing. Weeks later they pull freshly emerged kernels, which stunts and infects the cob for the rest of the season. When ears fill, they chew off chunks — often one or two bites per ear, then the next plant.
A 2024 Journal of Integrated Pest Management review of ear injury puts the deer signature in one line: husk leaves intact, tip of the ear bitten off. If ears are missing and stalks are still standing, start with deer, not raccoons. They will also carry a whole cob into the woods.
Sweet corn is sugar and water at the milk stage. That is why UConn splits it from generic corn, and why a suburban row is not the same risk as a dent-corn field. USDA’s Vegetables 2025 Summary (February 2026) put U.S. sweet corn at 379,400 acres planted and 58.2 million hundredweight produced; Minnesota led planted area at 94,700 acres, with Washington, Wisconsin, and Florida next. Those processing landscapes hold the same white-tailed deer that already treat yards as a night circuit. Farm-country pressure in the Corn Belt is on the Iowa deer hunting and Michigan deer hunting maps. The backyard version is this page.
Deer vs raccoon vs bird vs rabbit
Four animals hit a ripening patch the week you wanted to pick. The fence that stops one does not stop the others, so read the crime scene first. UMass Extension’s garden wildlife sheet and the Arkansas/UMass sweet-corn damage notes are the ID list below.
- Deer. Stalks mostly standing. Ragged tears 2 to 3 feet up. Tips of ears bitten off, husks often still on. Split-heart hoof prints and pellet piles on the edge of the patch. They work the perimeter. Damage shows up between dusk and dawn.
- Raccoon. Stalks knocked over in several directions. Husks stripped. Ears eaten on the ground. They famously arrive about a day before harvest. An 8-foot deer fence with a gap at the soil line is a raccoon door. UMass: two low electric wires, about 6 inches and 12–15 inches, weed-free, for raccoons on small fields.
- Birds (red-winged blackbirds, grackles, crows). Stalks standing. Husks shredded open. Kernels pecked in a “firecracker” pattern. No tracks. Birds often hit about three days before picking. Netting that is closed on top stops them; a deer fence with an open top does not.
- Rabbit. Clean 45-degree clips on young shoots, usually within about 18 inches of the ground. They do not bite the tip off a mature ear. Hardware cloth at the soil line stops rabbits. It does not stop a deer that can reach over it. Low-crop defense: how to keep rabbits out of the garden.
Squirrels leave scattered cob pieces near a wooded edge; see squirrels in the garden if that is the mess.
Where it is worst
Unfenced suburban and farm-edge patches next to woods — New Jersey through the Lower Great Lakes and Upper Midwest, then any Southern garden that plants a spring crop. Rutgers’ New Jersey farmer case study listed sweet corn among vegetables taking direct deer damage; the 27-farm sample put 2019 losses near $1.3 million once hidden costs were counted. A backyard row is the same animal at garden scale.
The row next to the corn is often the magnet. Iowa’s frequently-damaged vegetables include strawberries, lettuce, beans, peas, and carrots. Plant those beside unprotected corn and you have trained the herd to stand in the patch. Sunflowers sit on Iowa’s frequently-damaged annual list and will pull the same circuit. Pumpkins take the fall shift. Apples keep them coming after the last picking. If the shade bed already loses hostas, treat the corn patch as the same night circuit, not a special case.
What actually works
Fence the patch before silking. Cornell’s gardening-with-deer Q&A is the vegetable rule: plan on a fence. Once a deer has tasted milk-stage ears, it is harder to keep them out.
- Fence the whole vegetable plot at 8 feet if you also grow beans, greens, or berries. Iowa and Minnesota both use 8 feet as the passive-exclusion minimum, tight to the ground so deer cannot duck under. A 4-foot picket is a step. Deer clear that without thinking. Layout and cost: how to keep deer out of garden beds.
- A short electric polytape around a small sweet-corn patch. Iowa State photographs this exact use. Temporary electric rope or ribbon works on plots under about 40 acres; short fences can hold a small garden, but Iowa says go taller or angled once the enclosure is larger than about 100 square feet. Smear thinned peanut butter on the tape at nose height so the first contact is a nose, not a jump. Cornell’s Putnam County sheet: polytape plus peanut butter for home gardens and truck crops, and keep it hot. Penn State’s five-wire high-tensile design is the farm version. Crop-scale notes: how farmers keep deer off crops.
- Close the raccoon gap. Add a low hot wire or bury/weight the bottom of woven wire. A deer fence with a 6-inch gap is a raccoon ladder into milk-stage ears.
- Pick the day the silk browns. Birds hit about three days out; raccoons about one. Ripe ears left overnight are the raid. Staggered plantings mean staggered fences — protect every block that is silking, not just the first.
- Repellents only on labeled parts, and only as a delay. Cornell: most deer sprays are not labeled for edibles. Egg- or capsaicin-based product on foliage — not on husks you will shuck into a pot — can buy time if you start before the first browse and reapply after rain. Rutgers-style farmer damage at high density does not yield to spray. Formulas: organic deer repellent.
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What does not work as a strategy
Irish Spring, hair, and dryer sheets are not a corn plan. UGA’s deer-tolerant plants circular calls soap, human hair, and animal dung unreliable. A scarecrow, radio, or motion light buys nights, not a season — deer habituate. “Deer-resistant sweet corn” catalog copy is marketing; Iowa rates the species, UConn rates sweet corn as a favorite, and neither list splits Silver Queen from Ambrosia from Honey Select. Super-sweet (sh2) vs sugary-enhanced changes how long the ear stays sweet after picking. It does not change palatability to a deer.
A sacrificial lettuce or bean border trains the herd to stand where the ears are. Companion squash under the corn is an old raccoon story; it is not a Rutgers rarely-damaged rating for deer.
Do not dump leftover ears at the woodlot edge. High-starch corn can wreck a rumen that is not adapted to it — acidosis, bloat, even polioencephalomalacia in severe cases (Texas A&M Caesar Kleberg notes). Feeding also concentrates deer, which is how chronic wasting disease spreads at a bait pile. Start at CWD deer symptoms. New York makes intentional feeding of wild deer illegal (6 NYCRR Part 186). Minnesota Extension’s rule for homeowners is simpler: do not feed deer. Why the backyard pile backfires: what to feed deer in your backyard.
Grow these instead — or beside
You do not have to give up sweet corn. You do have to stop pairing it with the buffet, and you can fill unfenced edges with crops the lists actually put in safer columns.
- Cucumbers — Iowa and UConn both put them in the rarely-damaged vegetable column. Hairy leaves are the reason. Fruit still needs a fence in a high-density suburb, but it is a better neighbor than corn.
- Tomatoes — Iowa: seldom damaged. UConn: rarely damaged. Ripe fruit still gets hit. They are not candy the way milk-stage ears are.
- Lavender — a sun-edge herb deer skip for scent. It does not replace an ear of corn. It does replace the ornamental strip that currently funnels the herd into the patch. Marigolds are the annual version of that idea, not a force field. Longer lists: deer-resistant annuals and deer-resistant perennials.
UConn’s rarely-damaged vegetable list also names peppers, onions, garlic, and eggplant. We do not have plant pages for those yet, so treat the UConn sheet as the source, not a WorldDeer URL. Whole-yard tactics when the fence is still a maybe: how to keep deer from eating plants.
Common questions
Will sweet corn grow back after deer eat it?
Leaves, often, if it happens early and the growing point is still there — MSU says plants can recover from foliage browsing. Silks do not grow back in time to pollinate that ear. A bitten milk-stage cob will not fill. If the stalk is snapped, that plant is done. This is an annual. There is no hosta crown waiting underground.
Do deer eat field corn the same way they eat sweet corn?
Same species, different sugar. Iowa files all Zea mays as frequently damaged. UConn lists generic corn as only occasional and sweet corn as a favorite. In a big dent-corn field, deer work the edge and the milk-stage ears; the middle of the field often still harvests. In a backyard sweet-corn row, the edge is the crop.
Is it raccoons, not deer, eating my corn?
Check the stalks. Knocked over in several directions with husks stripped is raccoon. Tips bitten off, husks on, stalks standing, hoof prints on the perimeter is deer. Birds leave a pecked, firecracker cob on a standing stalk. You can have two of those in one week. Fence for the deer; add a low hot wire or a tight bottom for the raccoon.
Can I spray deer repellent on corn I will eat?
Only if the label says you can. Cornell: most deer repellents are not labeled for edibles. A fence has no pre-harvest interval. If you spray, keep it off husks you will cook and wash what you pick.
Sources
- Iowa State Extension — Susceptibility of plants to deer damage (corn / Zea mays: frequently severely damaged; sources: Rutgers, Cornell, Michigan State; last reviewed July 2022)
- Iowa State Extension — White-tailed deer: damage management (2.5-foot browse height; kernel pull; short electric fence on sweet-corn patches; 8-foot passive fence)
- UConn Home & Garden Education Center — Deer-resistant vegetables and herbs (sweet corn: deer favorite; “corn”: occasionally damaged)
- Michigan State University — Sweet corn (wildlife chapter) (silking and tasseling as the critical window; silk feeding reduces ear growth; ragged browse)
- Journal of Integrated Pest Management — Recognizing feeding injury to corn ears (2024; deer: husk intact, tip bitten off)
- USDA NASS — Vegetables 2025 Summary (February 2026; 379,400 acres planted; 58.2 million cwt; Minnesota 94,700 acres planted)
- Rutgers Cooperative Extension — White-tailed deer and the costs to farmers’ livelihoods (sweet corn listed among crops with direct deer damage)
- University of Minnesota Extension — White-tailed deer damage (shredded browse; 8-foot fence; do not feed)
- Cornell Cooperative Extension Schoharie–Otsego — Gardening with deer Q&A (fence vegetables; 8-foot minimum; edible-crop label warning)
- Cornell Cooperative Extension Putnam County — Reducing deer damage (8-foot woven wire; peanut-butter polytape)
- UMass Extension — Excluding and repelling problem wildlife from the garden (7–8 foot fence; raccoon electric heights)
- UMass Extension — Managing wildlife damage in maturing sweet corn (bird timing ~3 days out; raccoon ~1 day; two-wire raccoon fence)
- Penn State Extension — White-tailed deer in home fruit plantings (8-foot woven wire; five-wire electric)
- NYSDEC — Deer and moose feeding prohibited
- Caesar Kleberg Wildlife Research Institute — Corn in deer management (starch, acidosis, and over-consumption risks)
Part of the Deer-Proof Garden Guide. Wild diet lives on what deer eat.
