What's wrong with my habanero chili plant? Why are the leaves wrinkling?
It's not a nutrient issue, I tested the pH and EC.
I also doubt it's dehydration or suffocation, because it's in an optimal hydroponic environment.
So, there's only three options left I guess.
Option 1: wind damage.
It was quite stormy about one or two weeks ago. Maybe it got root damage (unlikely, small plant), or it bend too much?
Option 2: temperature fluctuations.
At the same time of the storm, the night temperatures dropped quite a bit (lowest: 12°C).
And now, it raised to 40°C just a few days after.
Or,
Option 3: sunburn.
It's under a shaded cloth, and gets direct sun only at afternoon, if at all.
All other plants (e.g. pepino) do very well and have no light stress.
Or is it something different?
It also lost a few pollinated buds. Is that a very bad sign?
New growth this week has appeared wrinkled as well.
That's quite a temperature swing. I'd also note that Capsicum Chinense family likes more dry conditions, whereas the Annuum (Thai) are used to more humid and wet environments. Probably why that one looks healthier.
General rule of thumb: thin skin peppers like dry, and thicker skinner peppers like more water. If you try to grow Bell peppers next to Aji peppers in the exact same soil conditions, one will over overwatered, and one will be underwatered, if that helps illustrate the difference.
Thanks!
Chilli plants usually aren't keen on colder temperatures. I tend to bring mine indoors when temp is below 15 overnight. Haven't tried that type though.
Edit: actually looks like something eating the leaves. Are they thin spider type things on the leaves? Looks like nibble marks all around the edge.
It's full summer right now, there was just a cold spell with bad weather.
There also aren't any pests, I spray it regularly with neem oil and check for abnormalities.
Zoom in on your picture around the problem leaves. It looks like some form of pest on it. I have no idea what.
I looked at this and it's interesting: https://veggiepatchideas.co.uk/common-pests-for-chilies-a-growers-guide-to-protection/
Under thrips: "Grey to black markings on fruits are another sign. These markings can make fruits grow in strange shapes. This damage can hurt the yield of chili crops a lot."
Some pictures look like your problem leaves. Worth checking.
No pests visible, neither on old, nor on new growth shoots
Fair and good to check.
Is the black a mould or damage? Are you watering when sun is not hottest? (It doesn't look like scorching). How frequently do you water? Is it over watered? Are the chilli OK or not produced yet?
Damage
It's in hydro, as mentioned in the post. It's a recirculating drip system with LECA. The clay balls are constantly damp, and there's an overabundance of water, nutrients and oxygen at the same time. Zero root rot ever.
No harvest or fruits yet. The flower pods fall off. I've checked the EC and pH, and flushed the reservoir. There could have been slight nutrient uptake issues in the last days or weeks, but nothing major.
Heat shock. I know those leaves from afar.
Makes sense. Is it the temperature or the light part?
For heat, I can do nothing about.
But I can give it some shade. It's already under a shade cloth, but gets full (side) sun from 15-19 o clock. Should I shield it from that? From what I know pepper plants LOVE heat and sun, the more the better. But is it too much?
Temperature. You had really low temperatures followed by a sharp hike. That induced thermal shock. Are you having cooler nights with some humidity?
And you are right; those are in the nightshade family; they enjoy full sun.
They seem to be getting sun burn; I'd change the watering schedule to the late evening and allow the plants to get more sun gradually, especially in the morning.
Give the plants a supplement to encourage new foliage development.
Very helpful, thanks a lot! 🌞
Then I'll give it more shade and see how it reacts.
What micronutrient package are your using. Looks like boron deficiency to me.
Using Masterblend and never had any issues with it. Also added silicate, both foliar and in the nutrient solution.
The reservoir is also very big for the relatively small plant and the nutrient solution isn't old.
There's a thai chili next to it, and it looks very healthy.
I was about to post but it seems I'm way out of my depth amongst these green thumbs lol
Gotta sing spicy Latin music to them...