Options To Row Cover For Brassicas
This is my fifth year gardening.
Every year up to now I've always used row covers to cover my brassica beds because I get tons of cabbage worms/flies in my area on all the plants, not just the cabbage. So brussels sprouts, broccoli, kale and all those other guys have to be protected.
But due to the height of broccoli and brussels sprouts, row covers for them are a pain in the butt.
So this year I made one big brassica bed with all varieties and put in the row cover again. But I also made one mixed bed (from many plant families) and have been trying the "home remedies" method to see if it would actually work. To date, I can say IT IS WORKING!
I have had spinach, onions, leeks, dill, 12 tomato plants (3 different varieties) several kinds of flowers for pollinators and then red and green cabbage plus kale and broccoli all mixed up throughout that bed. And yes, it is working. I see cabbage flies still flying in the area but they aren't bothering my brassicas which aren't covered.
So, my method is sprinkle regular table salt (the cheap stuff) in the center of each plant (where the head forms) and then sprinkle all of the plant with a dusting of flour (use the cheap stuff) mixed with cayenne powder. Just remember, rain washes this away so you have to re-apply AFTER THE PLANT DRIES. Do not add salt to a wet plant, it can burn it.
So I can't state for certain this is good but it does seem to be working so far if anyone else wishes to try it. My recipe for the flour dust is 1 cup of flour mixed with 2 tablespoons of cayenne powder.
If you do try it, let us know how it worked for you and what state/country you are trying it in please.