Hello people, so I woke up yesterday to find the tips of my my marijuana getting brown. I'm growing outdoors in a soil medium, the seedlings are being grown in a small nylon, while one plant is in early veg stage. These guys have been growing for less than one month now. I've applied composted chicken manure over time and I administered diluted blood meal to the plants that are directly in the soil, some have the browning tips and others don't, while all the seedlings in nylons have the browning tips and some spots. Please if anyone understands me can you help with info on what to do? Ps: photos below
Just don't use any more fertalizers or additives for a while, or use less. The spots are probably mites sucking sap.