Re: How long will the worms last?

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Posted by Cecilia (24.74.71.89) on April 11, 2006 at 15:48:45:

In Reply to: Re: How long will the worms last? posted by Dave on April 07, 2006 at 10:14:36:

I am also desparate to rid my home of these worms. I went by the hardware store and bought the spray. I then found this on the web.
Per the NC State Cooperative Extention program, it is too late to spray:

Homeowner chemical control

Landscape professionals or homeowners with a sprayer can treat cankerworms. They are easy to kill. Any pesticide registered for caterpillars (and most are) can be used.

If you decide to spray, you must treat as soon as they emerge (early March). By late April, you've wasted your time.

Astro, Orthene (acephate), Diazinon, and liquid Sevin can be used.

If you want to go organic, insecticide soaps or B.T. (dipel, thuricide) can be used. Two applications 5 days apart would be necessary. You must get them when they first emerge. Once they become large, B.T. is ineffective

Injections can be effective, but is usually expensive and must be repeated each year.

Use only an ISA certified arborists with an NCDA pesticide applicator license.

For fruit trees, make sure that the product is labeled for caterpillars on fruit trees.

: Angie,

: If your trees are otherwise healthy, they will survive the worms. It will be stressful on them but most of your larger trees will replace the leaves eaten by the worms. Your trees have probably been through worse infestations. I would sit it out and make sure your trees get enough water if we don't get much rain.

: If you have smaller trees you can spray them. There is an organic wormkiller I believe it is call bacillus something or other. You can get it at Myers Park Hardware. The folks there know their pests. We use the spray on our flowering cherry trees and it is very effective against the canker worms. It doesn't hurt you or the trees.

: If you want an expert opinion I suggest you check Angies List (www.angieslist.com) for an arborist. If you aren't an Angies List member it is well worth it.

: Good Luck

: Dave

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Comments:
: I am also desparate to rid my home of these worms. I went by the hardware store and bought the spray. I then found this on the web. : Per the NC State Cooperative Extention program, it is too late to spray: : Homeowner chemical control : * : Landscape professionals or homeowners with a sprayer can treat cankerworms. They are easy to kill. Any pesticide registered for caterpillars (and most are) can be used. : * : If you decide to spray, you must treat as soon as they emerge (early March). By late April, you've wasted your time. : * : Astro, Orthene (acephate), Diazinon, and liquid Sevin can be used. : * : If you want to go organic, insecticide soaps or B.T. (dipel, thuricide) can be used. Two applications 5 days apart would be necessary. You must get them when they first emerge. Once they become large, B.T. is ineffective : * : Injections can be effective, but is usually expensive and must be repeated each year. : * : Use only an ISA certified arborists with an NCDA pesticide applicator license. : * : For fruit trees, make sure that the product is labeled for caterpillars on fruit trees. : : Angie, : : If your trees are otherwise healthy, they will survive the worms. It will be stressful on them but most of your larger trees will replace the leaves eaten by the worms. Your trees have probably been through worse infestations. I would sit it out and make sure your trees get enough water if we don't get much rain. : : If you have smaller trees you can spray them. There is an organic wormkiller I believe it is call bacillus something or other. You can get it at Myers Park Hardware. The folks there know their pests. We use the spray on our flowering cherry trees and it is very effective against the canker worms. It doesn't hurt you or the trees. : : If you want an expert opinion I suggest you check Angies List (www.angieslist.com) for an arborist. If you aren't an Angies List member it is well worth it. : : Good Luck : : Dave

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