You can go on Accuweather, click on month forecast and see a truly long range forecast for laughs. My forecast shows no rain until October 11. Couldn't have ordered up a better long range forecast.:-P
You can pick up a quart of Alaska Fish Ferilizer, organic or otherwise, fairly cheaply. Apply that every couple of days until the plants green up. Only get into ph if the fish fertilizer or other Nitrogen fertilizer fails to green up the plants.
The white moths are not the problem. They are cabbage moths and will go after plants in the Mustard Family. We are concerned with the budworm whose moth is tan and apparently comes out at night. I have had 3 micro budworms on my 2 auto flowers even with sporadic spraying of bt. When my...