I have a number of squashes and pumpkins growing happily at the end of the garden. The plants are thriving, and shooting off in all directions, and I'm really not sure which is which any more. They are producing lots of yellow flower buds, but as soon as they open they seem to shrivel and drop off, without pollination, just leaving a bare severed stem. I've not ben home much lately, but from what I've seen, I think this happens in the space of about six hours, with a bud beginning to unfurl in the morning and being on the ground by the time I get home.
Why?
Is it too wet with all this rain and they're rotting? Do I need to hand-pollinate them? They are a little overhung by some neighbours' leylandii (on my list of "things to burn down"), so is that the problem? Everything else there is growing quite happily, and I've got lots of beans and baby carrots. Is it slugs severing the stems? (No sign of slugs, but I have had problems in that corner previously).
All suggestions gratefully received, ta.