Tomato Growing Thread 2022

Santorini, by far the most advanced in the greenhouse, but Brandywine Cherry and Jaune Flammée both have respectable amounts of green fruits.

 

Diagnosis, anyone, please? This is from a Sakura F1 in m y friend's greenhouse. A whole truss has gone half black at under 1cm long, then fallen off. An earlier truss is growing well and the flowers higher up look fine at this stage.

 

My friend tends to over feed/water, if anything. She's switched over to peat free compost this year, so I'm wondering if that could be a factor. I'm using 50/50 and haven't seen any such problems. I'll take a better look at what feed she's using. Thanks.

 

Morning everyone...this is one of my toms that lives by the door, so it catches the the brunt of the temperature changes and we've had some cold nights of late...It's not looking to good at the moment.

Looking at the leaves you would think a nutrient deficiency was the cause, but it's in a Quadgrow so getting everything it needs.

Looking at the stem, it could have a fungal infection or maybe the dreaded EB, what do you think?

 

If that's the case then that's my season gone down the pan already.

Think I'll pull the plant and keep an eye on the rest.

Cheers...

 

Thanks John...will dispose of as soon as I get in from work.

Will late blight be terminal for the rest of the toms?

 

If blight starts forming earlier and earlier it makes you wonder how much longer growing outside tomatoes will be viable.

 

It's such a terminal disease! Does anti fungal use manage greenhouse sterilisation? There seems no other way of dealing with the problem? Must be said my choice of Crimson Crush was as an experimental way of getting round te problem.
Must be said that I'm not really aware of blight being that termine in commercially run Tom houses. Do they spray for it? Is there a specific fungicide for blight? I did say sometime last week that this year seems damp. Someone has already suggested keeping plants dry (presumably watering ONLY from below?) If Blight is about, will this kept it away? Again thinking into the past I'm amazed how we got away with it with all that syringing!

 

In my experience it's allowed to proliferate when foliage stays wet or damp for long periods, getting the foliage wet in the morning and and it dries out by midday isn't a problem.

I refer to last summer as a soggy summer but it was not the quantity of rain but the way it came in showers, never really drying out for a few days before another shower, and then of course by September the heavy dew starts and windless days.

I think if you get it early in a greenhouse then the plants are probably overcrowded with not enough ventilation.

I'm sure commercial growers use fungicide, ones we are not allowed to have, they even banned the only really effective one that amateurs had Bordeaux mixture.

 

I'm sure @JWK ,will explain how to make your own Bordeaux mixture.