"Cabbage: A familiar kitchen-garden vegetable about as large and wise as a man’s head." – Ambrose Bierce
It's starting to feel like fall in these parts. Cooler mornings, later sunrises, and fall flowers are starting their show. We put in a fall garden at the end of July. This includes using a hoop and fabric system for the inevitable early frosts coming down the road.
The first year I tried fall crops (e.g. cabbage, kholrabi, broccoli, arugula), I met the cabbage moths. These little white-winged moths have probably always been around, but I never noticed them, let alone considered what they get up to all day.
Turns out, their job as cabbage moths is to lay their numerous eggs in the cabbage, and let their tiny worms munch the plants. Not wanting to use chemicals, I did the old-fashioned daily inspection. Squash the eggs, collect the worms, and put them in the bird feeder where they meet their end. It worked ok, but it turns out if I just put the fabric hoop up when I plant them it does just as well at keeping the moths out.
Sometimes, a solution creates a new problem.
The new problem I created isn't with plant growth. The little darlings are happier and healthier. The fabric creates almost a greenhouse effect. The new problem is bigger critters are taking a renewed interest in the worm-free tasty treats. They are eating through the fabric. This, in turn, lets in the moths.
Now my plants are getting doubly munched, and the fabric hoops have made it harder for me to get in there to squish eggs and collect worms.

So, in case you're wondering what grand design world domination thoughts are keeping me up at night, that's probably it.
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