What's happening to my watermelon plants?
I have about 20 yellow watermelon plants (janosik cultivar).
They are blooming and some watermelons are growing up.
I noticed that some plants have 1 or 2 leaves with yellowing and burned tip.
What could it be?
I cut the damaged leaves but I would like to know if it is a fungine attack or other.
Two days ago I gave about a spoon of NPK 5-10-15 fertilizer.