TOMATOES HELP NEEDED

Hello, I'm new to this, so please overlook any mistakes.
PROBLEM: Am growing tomatoes in greenhouse (for first time), and everything
was going very well. Plenty of tomatoes, starting to ripen. Then CATASTROPHE !!
3 whole trusses of tomatoes found on the floor, torn off by weight of tomatoes.
2 questions: am I overwatering, or doing something wrong, causing weak truss stems?
How to prevent the others coming off? (tried tying them up, but thats not easy).
By the way: cordon plants "MONTFAVERT", which are normal-size tomatoes, with about 7 or 8 fruit per truss.
All and any help gratefully received: I havent got that much hair left, and cant afford to pull any more out   .

Not a tomato grower, just have a few plants and I tend to grow the small fruit varieties, and all mine are still small .

It may be a terrible way to put it  but I suspect that you have done nothing wrong and have been quite successful. Just too many nice big tomatoes on a truss.

Hopefully someone that grows tomatoes more seriously and under similar circumstances will be able to offer more information.

my 32 tom plants in 3 greenhouses are tied to canes , then made a interlocking grid of canes 1ft  gap betwen each row , 5 rows up from greenhouse floor,

we growing 6 varieties of tomatpoes , alicante have took off , 4ft high  with 4 to9 5 trusses on each plant,

can always support trusses with twine in between the canes if needed

good luck

Thanks for the reminder! Some of my tomato plants are carrying very heavy trusses and I have known them break off.

All is not lost for the ones that landed on the ground.  They will ripen indoors.

Cheers,

Gillie

You're welcome. It's nice to be able to help somebody for a change!