If I cut down all the stalks and burn them, are there still weevil eggs ect in the base of the plant? are the eggs in the seeds that fall on the ground? What else can I do to get rid of them? I have way too many hollyhocks and weevils, cant go out and enjoy the flowers cuz all i do is hunt weevils!
Certified GKH Gardening Expert
I do have a method that I use to get rid of insect pests, fungal infections, and to help recondition the soil. Obtain as many of the ingredients as you can, as the more you have the better it works. The recipe is as follows:
irst, you will want to prime the soil with dolomitic lime, then spread wettable sulfur to Kill off any infection in the soil. I Also like to spray the plant itself. Mix a few drops of one or more of these ingredients into warm water with a spoonful of coconut oil: Rosemary oil, lavender oil, neem oil, garlic oil, cinnamon extract/oil and for really bad cases, also add clove oil.
Here is more information on removal of these pests: https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-root-weevil.htm