Unsure if it's nute deficiency.

[T!CTAC]

Hi all. We've had some hot weather here in SA but on the hottest days I've put shade cloth over my girls. They did get a little thirsty on a couple of occasions so this might just be the plants drawing moisture in. However I'm wondering if this could be a nute problem.

Northern Light.

50L pots.

Were in Tomato, herb and vege mix alone in 30L pots but now it's getting closer to flowering I put them into 50L with garden mix, no added nutes as I'm adding my own nutes to the medium.

Feeding with Power Feed, Rock brand root tonic. Foliar spray of seasol and chilli garlic repellant when needed. I only spray in the evening with no direct sunlight.

Thanks everyone :-)

[OldManDallas]

I recon its heat stress mate.

 

We have had some warm days here to in the mid 40's and i have had the same happen to my northern light but more severe

[billygoat]

Not heat stress.

[ZEN2U]

Bad heat stress tends to curl the outer edges of the leaves up. Overall the plants look healthy, just some old shade leaves affected, which could have happened when the plant was younger.

 

Tear off the older affected shade leaves(they are not doing much now anyway) and burn them. Before you burn them, look at the underside of the leaves with a magnifying glass and check for mites. If none, good, if there are some, treat plants.

 

If there are no mites or pests on the older shade leaves and you have gotten rid of them. Just observe and carry on your merry way. If anything comes up and spreads in the near future get back to us.

[oldfark]

You have some Leaf tip burn in the mix but generally nice shade of green .dont over feed with power feed only use every second or third water.

Black plastic pots always torture plants in hot weather,some strains of cannabis can handle the most extreme temps but not black plastic pots.✌

[T!CTAC]

All good advice from everyone so thankyou all. With all your responses it's nice to know that I have no major issues to deal with. Hope I didn't just jinx myself!

Thanks again everyone :-)

[Serrated edge]

Try use something to shade the pots that doesn't have thermal mass to it ..those tiles in the sum will throw out a lot of heat .

Just like a tiled roof .

[pedro de pacas]

Shade cloth is good to shade the pots with