Problem with Butternut squash leaves
Hello, I am new to gardening, especially to growing vegetables.
I have 3 seeds of butternut squash hunter variety growing in pots inside next to my south facing window. They currently each have 3 leaves on. All was going well (watered regularly, liquid fed every week) however this week I noticed that the larger round leafs have started to develop yellow-white speckling (which is starting to darken in small areas) and the smaller, longer leaves are starting to curl at the edges.
Any suggestions of what could be going wrong? I have read on some forums that it could be mildew but I could say the speckling is powderary.