Yes. Deer can browse blueberry bushes, and protection may be needed even when there is no ripe fruit. Loss of shoots and buds can affect the plant and future harvests, so assess damage to the shrub as well as missing berries.
Look beyond the fruiting season
Minnesota Extension’s blueberry guide notes that deer and rabbits nibble blueberry stems in late fall and winter. A summer-only bird cover does not necessarily protect a bush through the rest of the year.
Inspect the tips, buds, and lower branches, and look for tracks or use a camera to identify the visitor. Missing fruit alone does not prove deer are responsible; birds and other animals may also take berries. Match protection to the animals actually reaching the plant.
Protect a small bush or the whole planting
A sturdy, properly supported enclosure can protect a small planting if deer cannot reach through or over it. Allow room for the bush to grow and for you to harvest and maintain it. Check fastenings and access points regularly.
Where deer pressure is persistent, plan a deer-exclusion fence rather than relying on lightweight bird netting. Maryland Extension discusses fencing choices and the limits of other deterrents. Site, height, maintenance, and gates all affect performance; ask local extension advisers about a suitable design.
Do not drape loose netting over a bush and assume it excludes deer. It can snag branches and entangle wildlife. Bird protection and deer protection are different design tasks, although both may be needed at the same site.
Use repellents carefully around food crops
A label must permit the intended edible-crop use. Check whether fruit contact is allowed and whether harvest or reapplication restrictions apply. Follow those directions rather than rotating unfamiliar products on a schedule. Scare devices may help temporarily, but deer can learn to ignore them.
There is no “blueberry elder” variety
Sambucus canadensis is American elderberry, not a blueberry cultivar. NC State’s plant profile identifies it as a different shrub. Do not substitute it on the assumption that it is a deer-resistant blueberry or that its fruit has identical uses.
Choose actual blueberry cultivars for your climate, soil, and pollination needs. No cultivar name removes the need to assess local browsing. A plant-resistance list is a planning aid, not a promise that hungry animals will leave a shrub alone.
After browsing
Protect the remaining plant before investing in replacements. Assess which stems are still healthy and avoid cutting everything back solely to make the damage symmetrical. Maintain appropriate blueberry care and watch for renewed growth; the effect on the next crop depends on how much wood and how many buds were lost.
