I've been noticing wasps in the garden, especially around the Dinosaur Kale. I did some research, and wasps are excellent predatory insects. They'll hunt caterpillars, aphids, and some ants. I guess we'll have to share the garden with these guys, since we are growing organically and free insect control is the best.
We've recently purchased a Neem oil product to deter spider mites and squash bugs. So far so good.