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Little white grubs inside begonia tubers

Gary_L67Gary_L67 LiverpoolPosts: 14
i have been starting off my begonia tubers from last year and I found one that had gone like sawdust inside and there were two little white grubs inside, I checked a couple of others and they were the same. What are they and how can I check if the other tubers are infected without cutting them apart.


  • CeresCeres Posts: 2,126
    They could be vine weevil larvae. I don't know if they like begonias but they can certainly destroy things at a rate of knots. There is a photo of them here.

  • LynLyn DevonPosts: 19,923
    They’ll be vine weevil grubs, they love begonias,  if they haven’t made to many burrows you can pick them out with a skewer of some sort and plant the up. 
    Gardening on the wild, windy west side of Dartmoor. 

  • CeresCeres Posts: 2,126
    Leave the grubs on a saucer for the birds. They adore them.
  • BiljeBilje Posts: 670
    I suffer from vine weevil in pots of primulas every year. I’ve rescued eaten away plants by putting them underwater in a bowl for 48 hours, I believe that drowns the grubs but doesn’t damage the plants. Worth a go with your tubers. 
  • Gary_L67Gary_L67 LiverpoolPosts: 14
    Thanks everyone, I like your comments Bilje I will try and drown them I think.
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