DEVAL

@Tophat, it's sun burn there was one day that temps reach 115 and it was out in the sun. Since then the leaves dried out and shriveled up. If it was nute burn then all the leaves would have the same symptoms especially the lower leaves. The plant only gets 7ml of each nute once a week which is the max. The rest of the week I just add water and make sure plenty of water runs off.