help black spots day 51 in flowering

hello, everyone !!! I am in need of some help from someone more experienced than myself
I'm 51 day into flowering white widow big bud and cherry bomb. Im running them in dwc 5 gallon buckets. I started with maxigrow and maxibloom but switched to flora micro and bloom along with liquid kool bloom. I noticed that a lot of my leaves are turning yellow and dying. I noticed that the leaves have black spots on them and when I inspected them I found one small white looking worm on a leave and then this weird looking spider on another. I originally thought it was thrips but I could be wrong. The leaves also have yellow silver spots and the new growth have yellow on the edges. I was just wondering how can I treat this or is it too late since I am so close to harvest thanks

check out spiders ,might be a benifitul one and the black specks look like he been busy eating larvae

The black spots are called frass, or poop if you prefer. I dont know what insect you have but if it becomes a problem you can spray with a diluted neem or wipe down the leaves with alcohol. Works just as well.
The dieing yellow leaves maybe related to your fert regimine. Just a guess. Don't over fert Cannabis. Although the species in a magnesium whore. The other nutrients should be given in lower doses than manufacturers directions specify.

old shol4evr said:

check out spiders , might be a beneficial one and the black specks look like he been busy eating larvae

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thanks, unfortunately, I got rid of the spider then after thinking about it then reading your comment I think he was beneficial. what ppm should I stay around? I'm currently in flower 7th week with a ppm of 1200