Squah - 2 questions

I am certainly no expert but I have grown squash on the allotment for the last 5 years.  Not sure why they rot off as some of mine do too but I do leave the good ones on the plant until September (ish) and they just ripen on the ground.  The skins turn an orangey colour and are quite hollow sounding when you knock them!  If you don't harden them off this way they are ok for taste, but don't keep nearly as long.  I grow the acorn and butternut variety and same rules seem to apply to both.  Hope it helps!

THis is the first year I have grown Butternuts and had a great crop. I boned up on how to look after these and did all the following which has resulted in an excellent crop.

Well manured and fertilised the ground well before hand.
Started the seed off early in the greenhouse
Planted out early under cloches
The plants went into a a small raised mound
After they got going I mulched round the plants with bark chippings
Fed the plants every time I watered which was every day
They were slow to start with but well into June they went bonkers
After the fruit set I raised off the ground on old ex-supermarket wire baskets
when the fruit was really swelling well I removed the foliage near these so they were fully exposed to the sun.
Kept watering
Thats it....
The BN's are about the size of a small rugby ball and weigh 2kg+ and a nice beigey brown... yumyum

cheers
dave

i big problem I have is that the slugs take the small fruit. i wasn't able to get any fruit from one plant becasue the slugs kept on taking the small fruit.  better luck next year.

Novice, you don't state if you're supporting the fruit that is raised. It's possible that the weight of the fruit is starting to pull it off its connection to the vine and thereby rotting.  Even a tiny bit of separation can tell the fruit 'game over'. Cooperman supported his with baskets so there was no stress at the connection point.