Help! What is wrong with my runner bean plants/tomato plants
Just wondered if anyone can shed any light as to what is wrong with my bean plant leaves? Can it be fixed? In the second photo you can see the end of one of the leaves seems to have shrivelled up and gone crispy, then disintegrated in the middle. I can not see any pests on any of the plants, I have noticed tiny black fly hovering around but can't see any on the plants. I live in Switzerland and it has been very hot for the last 2 weeks - 28/29 degrees and thats when I first spotted the problem. My tomato plant leaves seem to be similar to the second photo of the bean plant, shrivelled/crispy at end, although they're not as bad as the bean plants.