Is my calabrese infected?

[monkeyboy]

I planted out the calabrese two weeks ago. This is how they are now:






They're in raised beds. I've also planted corn in the same bed. I've used these beds for calabrese for the previous two years without any problems.

[nickdub]

Don't look too bad to me - bit of damage from the cold nights we've been having probably.

[Snoop Puss]

Out of interest, if you've used the same beds for calabrese for the last two seasons, what did you put in the beds in the way of feed this year? It could be that the previous two crops have left the beds a bit depleted.

[ameno]

Sun scorch. If you get papery beige patches on the leaves of pretty much any veg within a couple weeks of planting them out, it's almost always sun scorch.
Wherever you had them before they likely had less intense sunlight than they are getting now. As a result, the leaves haven't developed a resistance to strong sunlight and are getting scorched.
The beige patches will never recover, but the rest of the leaf should be fine, and the new leaves won't be affected, as it should now be used to full sun.

[monkeyboy]

Snoop Puss I normally add fresh compost and fertiliser each year before planting out
ameno the plants were by a south facing window especially during the hottest two weeks we had and were fine so surprised it might be scorch. But hopefully the plants will recover.

[ameno]

You'd be surprised how much light, especially the UV light, glass cuts out. Especially as any window only gets full sun for maybe a third of the day. It's not heat which is the issue, but actual light.
Wind can play a role, too. Sometimes if it's windy as well then it exacerbates sun scorch, as the wind dries the leaves and makes them more prone to scorching in the sun.

[Snoop Puss]

Agree sun scorch seems a likely culprit, but a bit concerned that you're growing the same family in the same spot for the third year running. Previous crops might have depleted some minerals Have a look here at symptoms of nutrient deficiencies just in case you think any apply: https://www.yara.co.uk/crop-nutritio...cies-broccoli/

[monkeyboy]

Thanks all. Calabrese doing well. The two leaves I photographed were from two different plants and those two leaves are dead. But the remainder of each plant is doing as well as the remaining unaffected ones.

RE: micronutrient loss - I had hoped tipping up the raised beds with more compost and adding seaweed fertiliser would have sufficed. I also dump the compost from the potato buckets into the raised beds after I’ve harvested the potatoes.

I guess I should swap the beds round for next year but I may well reconfigure the raised beds into three 4x3 instead of two 6x4. I’ll lose a bit of space for SFG but it’ll be easier for me to maintain from weeds.

[Snoop Puss]

Seaweed fertiliser is good. My brassicas struggled for a while till I diagnosed boron deficiency. Made a huge difference. But it's in seaweed fertiliser, so you should be good there. Good plant hygiene to move things around a bit though, just in case.

Good luck, hope you get a great crop.