aruzinsky

The leaf distortion is likely caused by either a calcium deficiency or 2,4D injury. In either case, it will help to fertilize with 1 tsp./gal. of calcium nitrate.

In the case of calcium deficiency, the situation is similar to BER in tomatoes. It usually happens while the plant is growing fast because roots can't absorb calcium fast enough to keep up with growth. If and when the growth slows, the symptoms often disappear. It is sort of self-correcting.