Yellowing of leaves between the veins is sometimes caused by an imbalance or lack of certain trace elements; and that may have been caused by the recent drought. However - it's not possible to tell from a single leaf. Do you have a photo of the whole plant?
Billericay - Essex
Knowledge is knowing that a tomato is a fruit. Wisdom is not putting it in a fruit salad.
I don't have any other pictures Pete. I was sitting in a cafe and this tree was above me and every leaf had the same markings. I agree that the yellowing may be caused by a nutrient deficiency (possibly brought on by the recent dry weather) but the brown patches were on every leaf and they didn't seem drought related as they weren't on the edges or tips of the leafs but again within the veins. I couldn't see any leaf miners so wondered if the brown markings were a sign of something else.
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However - it's not possible to tell from a single leaf. Do you have a photo of the whole plant?
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.