Reference for catepillar identification?

carolynz · **Posted:** Tue Nov 04, 2003 9:00 pm

Does anyone know of a website or book for identifying catepillars and the resulting butterfly/moth?

Nadine · **Posted:** Tue Nov 18, 2003 8:03 pm

Here is one I like:

http://www.whatsthiscaterpillar.co.uk/america/

dcluck · **Posted:** Wed Nov 19, 2003 7:40 am

Hey, thanks Nadine! I was looking for something just like this last week.

~Dave

Gar · **Posted:** Wed Nov 19, 2003 6:09 pm

Much thanks Nadine.

The knobbly one looks like the ones that were eating my tomato plants this fall. What can I spray my plants with next year to stop these caterpillers from eating the leaves? My neighbors call them tomato worms.
I picked off the critters and deposited them down the stack in the compost bin. Hopefully they will turn into compost and feed the plants next year.

Bostonian · **Posted:** Wed Nov 19, 2003 7:42 pm

Bacillus thuringiensis (commonly known as 'Bt')
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http://helios.bto.ed.ac.uk/bto/microbes/bt.htm

Gar · **Posted:** Wed Nov 19, 2003 8:21 pm

Thanks for the reply Kathy, I'll try BT next year.

Nadine · **Posted:** Wed Nov 19, 2003 10:47 pm

Gar wrote:

Much thanks Nadine.

The knobbly one looks like the ones that were eating my tomato plants this fall. What can I spray my plants with next year to stop these caterpillers from eating the leaves? My neighbors call them tomato worms...

Bostonian is right. Bt should be applied next year just before the time they appeared this year and once again about two weeks later. BTK is what you will need for caterpillars as opposed to BTI which is for mosquitoes.

Reference for catepillar identification?

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