My plants have done very well this year. I have tons of flowers on my tomatoes, melons, cucumbers, and zucchini but the only thing fruiting is the tomato. I've seen ants inside the blooms and just used a treatment on your site (cornmeal, cinnamon) for that but I'm not entirely convinced that is the sole issue. Something is eating on the zucchini leaves but I've not actually seen bugs. Any suggestions?
Certified GKH Gardening Expert
I would recommend you apply neem oil. It is used to manage over 200 other species of chewing or sucking insects so odds are you will be able to contain your culprit. More information on neem oil can be found here:
With regards to the ants - here is an article with additional things you can try: