Unfortunately, gingko nuts have little effect. For small pests such as aphids and mites, lavender and rosemary are sufficient. For large pests, use oleander. Thank you.  

Would it be worth traveling to get fresh gingko fruit from the wild/mountains? What about pasque root?

I’m battling stink bugs, flea beetles, squash bugs, worms, and disease especially black spot (which I believe will be resolved from the JS).