English Elm - Caterpillars

We have some unique pests to deal with in Australia. Post your experiences and treatments here for others to learn from.
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Webos
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English Elm - Caterpillars

Post by Webos »

Hi Guys,
My English Elms are taking a beating from tiny little caterpillars eating the leaves. They are slowing the growth of the trees immensely and the trees look ragged. I've noticed that they particularly seem to like lower, weaker branches on the trees. I think they have even been eating the Zelkovas as well.

Anyone out there had the same problem? What did you do to treat the problem?

Thanks
Last edited by Webos on February 14th, 2010, 9:05 pm, edited 2 times in total.
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Re: English Elm - Caterpillars

Post by Mojo Moyogi »

Hi Webos, Yates Dipel is an organic product that works well see here:http://www.yates.com.au/products/organi ... ler-dipel/

Cheers
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Re: English Elm - Caterpillars

Post by anttal63 »

Webos wrote:Hi Guys,
My English Elms are taking a beating from tiny little caterpillars eating the leaves. They are slowing the growth of the trees immensely and the trees look ragged. I've noticed that they particularly seem to like lower, weaker branches on the trees. I think they have even been eating the Zelkovas as well.

Anyone out there had the same problem? What did you do to treat the problem?

Thanks
Are they little black hairy ones??? Elm grub??? Confidor.
Regards Antonio:
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Re: English Elm - Caterpillars

Post by Webos »

Thanks a lot guys.. I have some confidor so I'll start with that. If it doesnt work, then I'll go out and look for Mojo's recommendation.

Ant, the caterpillars are a dark greeny/brown and destructive
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Re: English Elm - Caterpillars

Post by Woz »

Webos, you can try this one it's my grandma's... :D ;)


CATERPILLARS & OTHER CHEWERS
Control by spraying plants with molasses spray. Makes plants distasteful to chewers. The only thing that beats grasshoppers is fine net!

Molasses Spray
1 tblspn molasses to 1 litre warm water and a few drops of soft soap.
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Re: English Elm - Caterpillars

Post by Waltron »

I thought I read somewhere that Elms and Confidor don't mix, can anyone confirm/deny this? My English elm has been eaten alive all summer, I have Confidor but have been too scared to use it. :?
Last edited by Waltron on February 15th, 2010, 7:18 pm, edited 1 time in total.
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Re: English Elm - Caterpillars

Post by Jamie »

i know chinese elm dont like pesticides etc. at all :shock: as for english elm i couldnt be certain but until it is confirmed i would wait, i know your tree is getting defoliated un intentionally by these buggers, if i was to try anything i would go with the molasses spray and see how that works, it seems more natural then any chemical.


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Re: English Elm - Caterpillars

Post by Waltron »

Jamie wrote:i know chinese elm dont like pesticides etc. at all :shock:
Oh crap! Just this afternoon I drenched my Chinese Elm in Natrasoap - and I mean drenched! :oops:
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Re: English Elm - Caterpillars

Post by Jamie »

natrasoap may be an exception but i cannot be a hundred percent positive :?
i would google if it is safe for chinese elm or someone might have personal experience with it.


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Re: English Elm - Caterpillars

Post by Mojo Moyogi »

Elms don't like systemics, confidor is a systemic insecticide.

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