Disease ID's

Waiting for it to get past a sensible time this morning before I start jet washing...

..got a few of these issues that I'm not certain I know what they are. I'm wondering if they are all fungal type diseases or maybe even Virus'?

If anyone knows what the issues are and how to rectify them I'd be really interested to hear. THANK YOU!

1) Bergenia....the redy yellow patches. I'm thinking this may be a virus?



2) Penstemon. Similar looking issue to the bergenia.

3) Mandevillia type plant. Leaf drop and yellowing mottled leaves. This may be due to me overwatering a few weeks ago.

 

Hi,

No expert, but could 1 and 2 water/spray left on the leaves then exposed to hot sun ?

#3 this link has pics similar to yours and what the problem is -
LakeAreaNursery.com - The Mandevilla Experts

 

This is always a teaser. Why? because over watering and lack of can often present similar evidence. Yes, I appreciate that suddenly seeing a marked, or damaged leaf. 'Oh my God, what's happened to my plant?

Calm down. In the natural course of a plant's life, many changes take place. Perhaps, por soil conditions, over feeding, over or under watering. Bug infestations and many more. Amazingly. Old age is so often missed out in the plant world. NO, this doesn't mean the plant has grown old, rather that actual individual leaf whatever has expired. Compare that to human life. We grow old and die. We may show signs of deteriorisation, falling over etc, but the signs are there.

In the plant kingdom, there exist the shall we call them, 'the natural ups and downs'

In short I am saying. Stop worrying, the odd leaf etc, snip it off. Should the entire plant become much the same, then is the time to worry.