I have just noticed cabbage worms on my cabbage and broccoli, as well as their green eggs. I purchased Bacillus thuringiensis to spray; however, the liquid just seems to bead off of their leaves. Does it come in a powder form, or is their something I can add to help it actually stick to the leaves?
Certified GKH Gardening Expert
You could try using neem oil, which will stick to the foliage and help with the worm problem. Here is more info: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
This article has some ideas for preventing these pests in the future: https://www.gardeningknowhow.com/edible/vegetables/cabbage/protecting-your-cabbages-from-cabbage-maggot-cabbageworm-and-cabbage-moth.htm