My 1st time growing outdoor. I chrcked the ppm but it wasn't much...600ppm my indoor didn't have the same issue....what could it be?
My 1st time growing outdoor. I chrcked the ppm but it wasn't much...600ppm my indoor didn't have the same issue....what could it be?
Powdery mildew?
No I put diatomaceous earth on it because of leaf hopper and some small grass
@SuperDad Ah ok. Good to hear. It would've been a tragedy if so. Looking at the pic again, the brown tips look a little too large to be nutrient burn. Potential potassium deficiency? Although, I don't see yellow margins with the brown tips so it might not be. What has the temperature been? Also, how long is it in direct sunlight?
It's been hot over here in northern California. I'll say 90+ degree along with 13-14 hour of direct sunlight
@SuperDad All signs seem to point to heat stress now. You can also tell by the edges of the leaves pointing upward.