Worm

Question

Can you tell me what worm likes to eat leeks? The one I have is black with a reddish brown head.

Answer 1

While it's difficult to say for certain, as many worms could be the culprit, I am leaning towards the black cutworm. You can try treating the soil with Bt, neem oil or even beneficial nematodes.

Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/insects/get-rid-cutworms.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm
https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm
https://www.gardeningknowhow.com/garden-how-to/beneficial/nematodes-as-pest-control.htm