how to kill large caterpillars on small plants (not in buds)

I've searched the forum for this, but can only seem to find how to kill worms in buds, not early in the season on VERY small plants with Very large caterpillars. We've had these in the trees all my life in the spring and have used Malathion to kill them. When saw these, I immediately thought of the Malathion, and didn't realize until after we got it that there must be a natural way to get rid of them without using poison.
Here's my question: How can I get rid of several types of larger caterpillars on 5-7" plants?

thanks

BT. Worked for my worms.Moths cut loose one summe, got inside somehow.Few days later I had worms on my plants(in veg and flower). I used this. It worked.

what's BT? Thanks. BTW, it's an outside grow . sure appreciate your quick response!

Ahh sorry, I thought I put the link in.This may only help to control them outside.https://www.google.com/shopping/product/10865437408251474310?lsf=seller:8740,store:14604380607267798980&prds=oid:2106569955969366273&q=BT+thuracide&hl=en&ei=c0PHXIrWFefd0gKPt70g&lsft=gclid:EAIaIQobChMIgqfhp_j14QIVTR-tBh3D7gLrEAQYASABEgLgQfD_BwE,gclsrc:aw.ds

CoB_nUt said:

Ahh sorry, I thought I put the link in.This may only help to control them outside.https://www.google.com/shopping/product/10865437408251474310?lsf=seller:8740,store:14604380607267798980&prds=oid:2106569955969366273&q=BT+thuracide&hl=en&ei=c0PHXIrWFefd0gKPt70g&lsft=gclid:EAIaIQobChMIgqfhp_j14QIVTR-tBh3D7gLrEAQYASABEgLgQfD_BwE,gclsrc:aw.ds

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Thanks, we have a Home Depot near where my husband will be tomorrow. He can stop by and get it then.It looks like it'll work just fine.

Cool, you are welcome.

On my outdoor I alternated....

BT one week.
Spinosad the next.

Monterey Garden Insect Spray contains spinosad. I believe the spinosad is for killing on contact.

BT. The insects (emerging from fresh hatched eggs for example) have to consume it.

I had minor....
Caterkillers
Thrips
Mites

That stopped after I started preventative spraying.


A tad too much veg time. Lol

I alternated with a product with spinosad in it.I didn't recommend it because I forgot the products name and didnt want to misinform.Thank you. @TintEastwood

CoB_nUt said:

I alternated with a product with spinosad in it.I didn't recommend it because I forgot the products name and didnt want to misinform.Thank you. @TintEastwood

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those are BEAUTIFUL!!!!!!!!
What's the strain? just curious. I grow for medicinal