What's Eating My Water Hyacinth Bulbs in Ottawa?

White-tailed deer: Common urban visitors; love hyacinth.
Muskrats: Aquatic rodents; eat aquatic plants aggressively.
Ducks/geese: Graze floating plants.
Turtles: Snapping and painted turtles consume hyacinth.
Raccoons: Will eat and shred plants.

Water hyacinth "bulbs" (floatation bladders) are being eaten in an urban Ottawa pond. Owner seeks culprit ID.

Likely Culprits in Ontario

Fence deer out. Use floating plant cages (wire mesh) for muskrats/turtles. Accept some loss—hyacinth grows fast and provides nutrient uptake.

In cities, deer are often the #1 hyacinth predator.

Pond and Water Gardening: Aloe Rot: Water Quality, Soil, and Pathogen Diagnosis; Plants Around a Chlorinated Pool: Salt Is the Real Enemy; Deionized Water for Carnivorous Plants: Testing and Validation; Do You Need to Let Tap Water Sit Before Watering Plants?; Water Hyacinth Problems: Yellowing, Damage, and Solutions; How Often to Water Your Garden: A Climate-Based Guide; Algae Control Without Plants: Dealing with a Plant‑Eating Groundhog; Poor Plant Growth in a Hard‑Water Well Pond: Fertilizer, Light, and Nutrient Testing; Resolving Bullying and Poor Water Quality in an Overstocked Biorb; Best Aquatic Plants for Water Gardens: Marginals, Lilies, and Edge Plantings

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