Hello fellow gardeners,

my White Widows are sick and I fear they won’t make it. They seem to have a severe infection from bacteria, but I also cannot exclude a fungus infection. I may have overwatered them, especially when I thought I had given them too much fertilizer, so I rinsed the soil.

It all started with brown stains like shown above. Then the leaves got burned from the sides (see next picture). Also, the plants started smelling less than before and they grew very slowly.

It got worse before I decided to cut off all affected leaves. However, the disease came back quickly.

To the day, I find stained leaves every day. The upper leaves also started loosing their healthy green color again, turning yellowish. The tips of the leaves are reddish-brown. There also are holes.

The only good news is: the red leav-veins turned green again after the last watering with fertilizer. However, the plants seem to have almost ceased drinking water by now.

Is there anything I can do to save my ladies, or do I have hold a funeral and start all over again?

  • Dasus@lemmy.world
    3·
    10 days ago

    The number one problem with new-ish growers is overtending plants.

    It seems like nuteburn, so yeah, you probably overfed them. If you flushed the soil, good. What sort of soil? If it’s very compacted soil, that would also explain, because the roots are finding it hard to “breathe” in such compact soil.

    I suggest always having some light materials in your soil to make it less dense. Perlite is good. I use 5050 vermiculite/perlite for my passive hydros (basically glorified tub watering pot).

    I’d say try to let it dry out a bit. However because it seems there’s also nute deficiencies, due to lockouts of some kind, do fertilise them as well, but like with a 1/4th of the suggested strength for the first time at least.

    Adding hydrogen peroxide to watering solution can be good, because it delivers oxygen to the roots. One of my friends liked watering her plants with carbonated water. I think it aerates the soil to some extent at least. And roots enjoy carbon dioxide as well.

    Just be patient. Once the leaves have gotten a bit fucked up, it might be they don’t really fix the colour or perk up too much even if the plant isn’t in as much distress anymore. Newer growth will though.

    So just take it easy with the watering and fertilising and you’ll be fine.

    Edit also good reading https://www.growweedeasy.com/curling-or-clawing-cannabis-leaves