start of flowering - first hairs are brown

Just moved my plant from indoors to outdoors so it would start flowering. now its 1 week into flowering and and the first hairs at the top of the plant are completely brown.

I should also note that my plant is currently in a mild nitrogen deficiency, which i started treating by giving the plant Bio Bloom fertilizer and watching the water PH levels.

Doesn't sound right, got any pictures?

Have you sprayed anything since bloom began ?

I've never used Biobloom but I just looked it up and it's a 2-7-4. This makes me wonder why you would you use such an N-poor fertilizer to treat an N deficiency.

Maybe some fish emulsion or diluted urine would be more effective?

I smell russet mites