Alisma
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on January 16, 2017
Mammals, such as voles, mice, or rabbits, may be eating your dahlias, especially since you've found large holes in the bulbs. Many mammals find dahlia bulbs tasty. Here is an article that might help:
https://www.gardeningknowhow.com/ornamental/bulbs/bgen/protect-flower-bulbs.htm
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