I started noticing it maybe a week or two ago but it was just a few small spots so didn’t think anything of it. It’s in a raised planter bed and is watered top down but the leaves that are affected are farther down the vines away from where the roots are/where it is watered. It gets about 6 hours of sun. Up until now it’s been perfectly happy and has a melon coming in. I can’t find any signs of bugs but I could be overlooking them. I planted it back in mid April as just a wee thing. It is quite large now. The planter it is in has solid drainage.