This isn't about insects and disease, but it is about other pests.
So I've been floating along in this fool's paradise of all my veggies growing so fast I can practically watch them, and no problems, everything perfect. I planted corn, beans, and squash, separately, in the latest bed to get filled. I planted two kinds of winter squash, 3 of one kind and 3 of another, across the back, and double rows of beans along the sides. The beans are beautiful little plants with second pair of true leaves and there were three squash plants (all one kind) up and starting on the first true leaves and a bunch of teeny tiny corn plants in the middle. Then yesterday morning I came out and there were TWO squash plants and one had just disappeared! Today I came out and there was ONE squash plant left and I managed to find the stub of the second one cut off just barely above soil level. AND several of the bean plants had had their tops and all their leaves nibbled off. And there were a bunch of roundish footprints in the soft soil.
I haven't seen much critters around and my compost pile in the open three-sided bin has not been disturbed (so clearly no raccoons). But we did spot a bunny in the neighbor's yard, so I am suspecting him. There is chain link fence around three sides of the yard and I haven't seen any burrows under it. But the horizontal connecting the chain link to the house is an old wooden fence and there is space between it and the ground. A little dog that was staying with us for awhile used to get out under it, so clearly a bunny could get in. GRRR!! Our bigger dog is out in the yard a lot during the day, but sleeps inside with us at night. Night time is when the depredations are happening.
And my kale and cabbage is starting to get a bunch of slug holes in it. Time to start defending my garden!