Bay (laurel) Tree

funnelweb

10 years ago

Bit hard to tell from the picture, if it's a heavy scale infestation there should be some blackish mould on some of the leaves. Also if it's scale you should be able to flick them off with a fingernail. You might also look for ants that 'farm' the scale for their 'honeydew'. If it is scale, a white oil or similar produce should do the trick. And if there are ants going up and down the tree, a ring of petroleum jelly around the base will stop them and interrupt the cycle.

Regards

born_free
Original Author

10 years ago

Hi funnelweb

Thank you for your response. Since this post half the tree has died so I am not quite sure what has happened.

I do think it's scale covering the stems and there has been evidence of mildew. All that said there are no ants on the tree.

I have since trimmed it back and will see if new leaves appear. I've been wondering if the part death is due to root rot or a borer insect.

Thanks again for your advice

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Digging sprouts coming from roots in a pot could be quite a chore. Then there is the matter of what effect it might have on the parent plant to take out chunks of its roots near the trunk. When getting more plants is the main objective (and large outdoor specimens are not available) probably works much better to take stem cuttings and root them, or even just buy additional small plants for five or ten bucks each. Otherwise, just cut the suckers off at their point of origin, if you don't want them growing up through the branch structure.

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This sounds like a fantastic project, and I can only imagine how beautiful your redwood groves will be in a few years! Bay laurels are beautiful trees, and a grove of them would smell amazing. See the link--fresh seed germinates readily but stored seed does not. PFAF says that cuttings work well but I have seen people elsewhere complain that this isn't so. I'd go with the fresh seed if you can obtain it. Be advised that there's also the issue of Sudden Oak Death. Bay Laurel is one of the primary hosts of SOD--it doesn't kill the laurels but it spreads from them to the oaks. I've read that you shouldn't plant them within 35 feet of each other to prevent infection. Here is a link that might be useful: Propagation of Bay Laurels

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funnelweb

10 years ago

Yes, look, ants are not always evident with scale, and from your picture I'm not sure it is scale. It could be borers but that should be evident by small holes 'bored' into the trunk and branches. If you find those probe them with a piece of wire and see what you can extract. You can also inject methylated spirits into the holes which'll kill the bug in there. Having said that, I have a healthy, or what was a healthy, tababuia tree that is currently struggling to put on top growth although the lower braches have healthy leaves. I put it down to the long dry period just (hopefully) passed. By the way, Tababuia is not a tree familiar to the Sydney region. Good luck with it, hopefully what you've done will encourage it to recover.

born_free
Original Author

10 years ago

Thank you again

The tree has some lesions as in the photo. I will try the wire to see what I find.

Ta

Bay (laurel) Tree

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