Re: Help! Grubs withcacoons eating our pines.

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Re: Help! Grubs withcacoons eating our pines. rainman 01-01-2007
Posted by on January 1, 2007, 3:30 am
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> Appreciate how to kill these parasites. We've had 3 book-leaf pine-trees for
> 20 yrs in the front yard and out here in Dubbo they do reasonabley well for
> non-gardeners like myself. But in the last 10 days they have been attacked
> by grubs which clothe themselves in a cacoon made from the pine-tree's
> leaves.
>
> There are 100s of these things suspended by a gossamer of thread, others
> actively eating the foliage.
>
> Any thoughts appreciated, thanks

Spray them with Dipel.



Posted by Jason James on January 1, 2007, 2:13 pm
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>
> > Appreciate how to kill these parasites. We've had 3 book-leaf pine-trees
for
> > 20 yrs in the front yard and out here in Dubbo they do reasonabley well
for
> > non-gardeners like myself. But in the last 10 days they have been
attacked
> > by grubs which clothe themselves in a cacoon made from the pine-tree's
> > leaves.
> >
> > There are 100s of these things suspended by a gossamer of thread, others
> > actively eating the foliage.
> >
> > Any thoughts appreciated, thanks
>
> Spray them with Dipel.

Thanx for that additional info. I note it is a bio product. A good
alternative provided 2 days is not a critical time delay,..with this attack,
there are so many, I'll use the Dipel as a follow-up a cou[;e of days after
an initial spray of Crawly cruncher.

Jason



Posted by Tish on January 1, 2007, 3:15 pm
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rainman@mailinator.com wrote:
>
> Spray them with Dipel.

This is good advice. The things eating your pine (Dacrydium Lambert) (Dacrydium Lambert) trees are almost
certainly moth caterpillars, so dipel will probably deal with them
without poisoning the rest of the insect life on the trees - some of
which will be beneficial insects.

Tish


Posted by Jason James on January 1, 2007, 10:20 pm
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> rainman@mailinator.com wrote:
> >
> > Spray them with Dipel.
>
> This is good advice. The things eating your pine (Dacrydium Lambert) (Dacrydium Lambert) trees are almost
> certainly moth caterpillars, so dipel will probably deal with them
> without poisoning the rest of the insect life on the trees - some of
> which will be beneficial insects.

Thanx for those comments, Tish. I understand the difference and intend to
treat the dozen or so pine ornamentals with Dipel at regular intervals. We
have one huge CP in the backyard (about 12' high and wide) which gets its
nutrient from root ingress into the sewer line. It has no grub/cacoons on it
at all. A healthy tree in a severely drought affected area.

Jason



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