I haven't ruled the inside job out just yet. Though there's been 2 weeks since the last heist was pulled. I'm suspicious about the back corner under the bench. Now I have to make time and get down under there and lift a board or two and see if I can find tunneling. In between the two robberies, I did construct an exact fitting screen door made of hardware cloth. But I got lazy the other day and used the window screen instead.

Cottentop, Congrats on your first corn. The culprit in the corn case is the corn earworm. The exact same worm will move to tomato plants and eat the fruit. On them it is called the tomato fruit worm. Corn earworms can be difficult to fight, and if you happen to find holes in the side of the husk showing where a worm bored its way through the husk, then that's the European Corn Borer. I have both of them most years, but sometimes none at all. With the squash, it likely is the squash vine borer, commonly referred to as SVBs around here. I'll link info on them. That's just a guess, though, because it also could be squash bugs or disease. The linked document will address at least squash vine borers and squash bugs, and may go into other things as well.It's been a while since I read it and I don't remember if it goes into other squash family pests and diseases. It can be difficult, but not impossible, to save plants hit by the SVBs if you can catch them on the day it wilts, or even before that, by scouting the base of your plants for FRASS (grub or worm poop). If you find the FRASS, that means the squash vine borer is inside your plant eating away. You can slit the stem, pull it out, press the stem back together and bury it under soil so the soil acts as a sort of band-aid. Dawn Here is a link that might be useful: ATTRA: Squash Vine Borers and Squash Bugs

I have been using Mills Magic and various Tones, usually right before a big rain. It's a time-consuming process since I have to pull back the mulch, scratch in the fertilizer thoroly and then replace the mulch. To keep the dogs off I lay empty flats (the plastic trays that six-packs of annuals come in). I still find soil disturbed here and there and guilty looking dogs with mustaches of dirt on their golden faces! Am going to back off on the process this year by relying on compost, liquid feed and alfalfa tea instead. Most of my garden is established shrubs and OGR's and I want to see how they do on this regimen. After all I'm not growing for exhibition!

Any close up pics of the affected leaves?