It's been such a long hot spell recently that the mango tree in the front garden seems to have burnt leaves from exposure to the sun. At least , that is my amateur opinion. So my question is are they just burn or is it some kind of disease. To be fair , an adjacent fern is also looking burn despite constant watering. Even one or two potted plants that do get some shade look the same way.

Hot again today so no relief for anything in the garden. Even weeds have given up growing !

The leaves appear to be sunburned, not diseased. If they are on the southwest facing portion of the plants it would be further confirmation of intense sun exposure. 

 

Drought stressed foliage is more susceptible to sunburn. Water the plants well and it will minimize further sun damage, like deep heavy drenching to get penetration into the soil profile. Light sprinkling of the soil surface or wetting the leaves is not adequate. 

 

Hope that helps, Don

8 hours ago, drtreelove said:

The leaves appear to be sunburned, not diseased. If they are on the southwest facing portion of the plants it would be further confirmation of intense sun exposure. 

 

Drought stressed foliage is more susceptible to sunburn. Water the plants well and it will minimize further sun damage, like deep heavy drenching to get penetration into the soil profile. Light sprinkling of the soil surface or wetting the leaves is not adequate. 

 

Hope that helps, Don

Thank you very much. I will give them a thorough drenching today. As luck would have it we had a heavy rainfall yesterday evening so that's half the work done.

Drench the soil rather than the leaves after sun goes down or before the sun gets on them.

Water on the leaves will increase the chances of burning the leaves.