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I have two small Magnolia trees in pots and the leaves keep getting eaten by slugs. i have put down slug pellets and egg shells and this is not deterring them. Does anyone else have any suggestions I could try?
thanks




Answers

 

I think it is highly unlikely your magnolia leaves are being eaten by slugs - much too tough for them... much more likely to be the dreaded vine weevil. Look for small black beetles and make sure their grubs are not chomping on your magnolias roots.

3 Sep, 2011

 

Thank you for your reply. I thought they were slugs or snails as there is a slimy trail deposit around the base of the tree. I have read that i need to go out in the dark with a torch to see if i can see adult vine weevils on the tree and destroy them.
thanks again x

3 Sep, 2011

 

Vine weevils eat out a very characteristic shape of hole, not really like slug damage, more like leaf cutting bees but with irregular edges. Try putting in vine weevil damage on Google Images and compare the shape.

3 Sep, 2011

 

thank you for your reply. i checked on Google images and they do not have the vine weevil characteristic hole on the leaves. they have left the leaves in a skeleton like pattern so this is why I think they are slugs or snails. i have purchased some grit that goes at the base of the plant to try and deter them. If not I have read that I can purchase a copper tape that will help?

4 Sep, 2011

 

Yes copper tape around the container, not the tree, will help if it is slugs. Also have you got the containers raised up off the ground so that nothing can get in from the bottom?

5 Sep, 2011

 

When you put the copper tape round the pot remember there might be slugs in the pot already even though no more will climb in. But if your leaves are being skeletonised (horrible word) two other possibilities are slugworms and leaf miners, though I don't know if either attack magnolias. It might be worth spraying with a contact insecticide just in case its slugworm. Don't know what to do about leaf miners but am sure somebody else will.

5 Sep, 2011

 

Thank you, I will try your suggestions, x x

6 Sep, 2011

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