Hi Rose, its quite possible too much water. Here near chicago its been warm and i notice lowest leaves are similar as your description. In my case its the water coming out of watering can and or hose hitting the lowest leaves each day sometimes resting on top of soil thats doing it for me. Martin Chicago Ebay ID - Dieseler6z92 Member- Garden Web, Figs4Fun, Friends of The Fig Society

Hello, thank you so much for all your advice. I really do appreciate it. I am so worried of my Calamondin tree. Yes, i think it is a huge change of environment. Vienna has a crazy weather, it changes every 30 min. And my apartment is on the 6th floor and unfortunately, I do not have a terrace. So I put my calamondin beside my window where most of the sun comming in but it is from North east. I hope she will be fine. I already bought a fertilizer for Citrus and I hope she will be fine. I took all the fruits since they are gone unhealthy and yellow. I hope soon when warm weather comes, she will be much happier. I am happy that the leaves did not fall as much when i cut off all the fruits. Tushaar, you could be right, they spend a lot of energy keeping the fruits. I think it will give my tree a little rest and develop itself here in the environment. But I planted two of its seeds and it have grown very well and happy. I hope that it will be more used to my environment. Thank you once again for all your advice it was such a big help. Cheers and greetings from Vienna!

I tidy up under the plants but mostly so the garden looks tidy. I just read (again) advice about removing all the mulch under and around each plant and replacing it. Might help but that's a big ask if there are lots and lots of roses. With well-established roses which are susceptible to BS it does seem to help to strip the lower foliage within 6 inches of the ground. I used to do that to 50 plus roses. Whew! I have high hopes the newer Kordes varieties that I am about to try will prove more resistant. I need all the help I can get!

I know you've been around the forums for a while, so I'm wondering if you've been monitoring soil moisture levels with a 'tell'? A tell is much more effective than a "moisture meter" or a digital device (a finger). The symptoms do look like there are issues in play which are related to an overly water-retentive soil and or a high level of salts in the soil. Please tell us how you decide when it's time to water, how you fertilize, what you use, and how often you apply the fertilizer. Does your pot have a drain hole? Do you have a set-up so that once water exits the drain hole, there is no possibility of the effluent finding a pathway back into the soil. What kind of temps, light levels, humidity, is the plant dealing with? Water uptake is an energy-driven process, and it takes oxygen in the root zone to burn the food to make the energy. An inadequate oxygen supply = limited root function = an inability to move water to the plants most distal parts (leaf tips/margins) = the manifestation of the symptoms depicted in your images. So, let's wait to see what you have to say, then see if we can determine what needs fixing, then develop a plan to get it fixed. Al