London (change)
Today 33°C / 19°C
Tomorrow 24°C / 18°C


Latest posts by Italophile

Tomato leaf problems - help

Posted: 24/07/2012 at 08:16

Gard, toms will tolerate a lot higher than 25C, even in a greenhouse, but the sort of temp you're citing would be a problem. Outdoors it would be less of a problem - mine sit in a baking 40+C all day - but a greenhouse, even ventilated, can become effectively an oven. How likely is that your high-40sC will continue? You might need to look at erecting some shade cloth to keep the temp down.

Your watering routine is right. Requirements will vary with temperatures, etc. Water as and when required, not by rote.

Tomato leaf problems - help

Posted: 24/07/2012 at 07:29
Insomnia1973 wrote (see)

I don't think it's your monitor. Might be my camera. Only a cheap and cheerful thing. I've just had a look, and there are no crusty bits. When you rub a spot it's totally smooth all over. I did see a tiny little mite on a leaf though. About the size of a spider mite, but yellowy orange.

Possibly a Red Spider Mite, they're pretty much an orange colour and they love peppers. Here are a couple:

I've been wondering about insect damage because the spots don't look particularly fungal or bacterial. Have a look on the undersides of the leaves. It's usually where they hang out.



Tomato leaf problems - help

Posted: 23/07/2012 at 18:27

It's definitely necrotic tissue. Is it my grubby monitor or are there some brown crusty bits developing within the margins of some of the larger spots?

Tomato leaf problems - help

Posted: 23/07/2012 at 11:51

Always use secateurs or scissors to remove branches or even just foliage. Make a nice clean cut. Removing by hand can tear plant tissue. 

When you say the "B" word, you mean Blight? As I've posted here before, "Blight" has become a generic term for fungal disease. There are only two real Blights - Early and Late. You have neither, the symptoms don't fit yours. But it's clearly some sort of fungal disease. I'd keep as much space between at all times - including nighttime - to aid air circulation.

I thought the pepper spots might be early symptoms of something like Powdery Mildew but they're obviously not. PM spots are powdery on the leaf surface. Do they in any way resemble the spots visible on the less-affected lowest branch (pointing away from the camera) in the second last photo?

Tomato leaf problems - help

Posted: 23/07/2012 at 07:39

Becks, curling of the top leaves of toms is common, often caused by over-watering and/or too much fertiliser.

The peppers. It's hard to tell even after magnifying the photo, but the white spots don't look like scorching on the leaves. Are the spots powdery and on the leaf surface? Or are the spots sunken?

Do the toms - and the peppers for that matter - live indoors or outdoors? The toms have a leaf mould problem. It's a very good housekeeping idea to take off the lower branches to maintain at least a foot of clear air/space between the lowest branch and the soil.

The second last photo is a good example. The two lowest branches shouldn't be there. The second lowest branch - pointing towards the camera - is the diseased one and you can also see early signs of disease on the lowest one pointing away from the camera. Fungal spores will drop from the leaves to the soil. Maintaining at least a foot between the lowest branch and the soil helps against the spores splashing back up onto the leaves when watering.

In the meantime, all you can do is remove the affected foliage - including the branches that shouldn't even have been there! - and look for as much air circulation as possible.


Posted: 22/07/2012 at 07:46

Size depends on the variety, Zoomer, but as a rule of thumb it's always best to harvest them a little early. A good test is to check the skin. If it's shiny, with a sort of sheen to it, it's pretty ready. It should also be still firm to the touch.

Basil with a problem

Posted: 20/07/2012 at 07:41

The brownish edges suggest overwatering or problems with the drainage. Basil doesn't like wet feet. I agree with Dove that the transparent patches could be scorching.

Pepper and Chilli problems

Posted: 19/07/2012 at 18:53

Sounds drastic. Any chance of a photo?

Tomatoe plants with no flowers !

Posted: 19/07/2012 at 09:50
Loz wrote (see)

Yeyyyyyy, I have 2 tiny tomatoes but guess what....the first ones to fruit are the most neglected! after filling 3 grow-bags I had 4 plants left which I left in their small pots for weeks then later popped all 4 into a terracotta pot and stuck them in the greenhouse, they have had the least water because of the pot and now I have fruit! obviously I've been over watering. The actual plants look the healthiest too, the grow-bags look leggy, a bit crinkly looking, but not crispy and have creamy white specks on and brown edges whereas the pot are all a lovely green colour......very odd! anyway.....I HAVE TOMS!!!!!!

There you go, Loz, proof that toms don't need to be pampered. Try the controlled neglect approach next year and you'll be inundated with the things.

rust on veg

Posted: 19/07/2012 at 07:01

The only time rust ever hit leeks for me - and the garlic for that matter - I just removed the affected leaves and destroyed them. It didn't impact on the inner edible part of the leek.

Discussions started by Italophile

Italophile has not started any discussions