Cannabis Troubleshooting

I need everyone's collective help on this, please. Sorry for the blurry pic. This plant is half way thru flowering. Leaf matter turning yellow around the top and middle of the plant, then shrivels and dies.

Gidday I have noticed my plants have gone a pale color what happened was i added to much ph down and to bring the ph up i remember a mate saying to use silica magic to raise ph, so i did and since then ive noticed some burn im guessing its the silica magic !! sorry no pics any help much appreciated

Hey I've just started my first DWC grow the link is in my signature. I just realised the tips on the first set of leaves are browning and dying! Surely its not time for them to die just yet??? Also the seedling with the protruding root is drooping I think I may have over watered it (Ill have to stop top-feeding this one cos it obviously doesnt need it!) ...Or is it normal for a plant to be a bit droopy while it acclimatises to DWC, this seedling has about 25-30mm of root in the nutrient. However it is only the new set of leaves which are drooping the first set are still horizontal but have a small amount of browning on the tips This one has a small amoun…

Just wondering if 40'C is to hot for flowering, im in nrth Qld it gets really hot here during the day,but im not sure if 40 is too high ???????

Some of my fan leaves are looking bad can anyone give some help please thanks! I Put the plant out side almost a week ago spread it with neem oil and flushed it with fresh water before i put out side. Now these fan leaves which i cut off are what you see here in the pix Can anyone tell me what this could be. Is it Nutes, change in environment or bugs...?

Gday all, my plants are about a month old and they were doing fine for awhile until the bottom little sprout leaves began to yellow as did the first set of leaves (you know the ones that are serrated like true leaves but aren't multi-fingered like true leaves), then the tips of the first set of true leaves began to yellow and even brown a little, now all but the newest growth are yellowing at the tips and curling upwards with some of the leaves sporting yellow spots around the middle of the leaf, the main stems of the plants are healthy green but the leaf stems to the affected leaves are a reddish/purple colour. Now I've looked through countless guides and diagnoses tutor…

I need to bring 1/2 an ounce over from British columbia to New Yprk whats the best way to do this over the air ports

So, bringin up a new lot from seed(arent clones so much easier!), they get to about 7days - 2" tall - and seem to fold in the middle and die. Any ideas? When i look at em after the fact its almost like theyve been crushed in that area - which they havent. I tried transplanting a couple and burying them deeper but, after theyve stretched back up again, theyve seemed to do the same thing. I dont think ive over watered or underwatered but wot can it be? Im growing out of seedling trays in a even mix of perlite/vermiculite/coco under a fluro grow light, about 200mm from the light.

Just notice 2 buds with mould, Should I pull the whole lot now? I cut the offending Buds and they have the first signs of Bud Rot. I cannot see it in any of the other buds but I can' see all the buds either. what a bummer