Yellow Circles on leaves

I have a Chochalope and it has developed yellow circles the eventually turn the leaf brownish before it dies and moves up the plant. From what I understand chochalope is a cross between choch tia and cantalope, but is it prone to mold? I got a sterile mother off a fellow gardener about 5 weeks ago my friend has a powdery mildew problem and said it starts with the yellow rings is this true? best way to get ride out it? is chochalope prone to mildew n mold?

what are the conditions in your grow area? humidity/ temp/ lighting/ bugs/ nutes/ soil

foxfarm forest n ocean mix and following the feeding schedule which right now is 2tsp grow big 1 tbl big bloom(veg stage) i also use 2tsp of catalyst from earth juice. ph ranges from 4.5-6 temp is about max 88 min 63. humidity varies from 40 -60 depending on rain fall in my area. i use a 250w hps n 400w mh. i also add about 3/8 cups of 3% peroxide to my solution and a foliar spray with 1/4 per gall peroxide.

no bugs btw.

if you think it is mold you can spray bakeing soda and water on them this will bring the ph up and kill the powderey meldow . if i could type id tell you more lol
happy growing

any certain ratio? and duration i leave it on there? also have a good time in your happy place also

what about powdery mildew? anyone know if baking sode and water kills it? my friend tried some stuff it worked but not for long but it also smelled like ass for like two days.