Yellowing browning leaves

Bigjeff420

Active Member
These leaves started yellowing and browning on three of my plants ph 5.9 rh 50 at night 45 day temp 70 day 60 night I sprayed fox farm force of nature 4 days ago I have nine plants only three did this I seen a sign of thirp that’s why I sprayed think it was the spray or thirps
 

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