found yellow and black caterpillars in garden

I found my dahlia leaves eaten away overnight by black and yellow caterpillars or worms. How do I get rid of them?

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1 Comment To "found yellow and black caterpillars in garden"

#1 Comment By Downtoearthdigs On 06/29/2015 @ 11:50 pm

They can be treated with products containing Bacillus thuringiensis (Bt), a natural bacteria that kill worms/caterpillars without harming plants. Neem oil may be helpful as well. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm ^[1]
https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm ^[2]

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URLs in this post:

[1] https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm

[2] https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm: https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm

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