Dear friends, what can i do to rescue my plant?
what can i do to rescue my plant?
Provide information to help try a diagnosis.
Such as location, environmental stress, recent history....
During past 4 years there was not any problem, but in 2 weeks many of leaves have been lost. Temperature is 17-30C, Humidity is 25%, watering: twice a week.
Not a disease. Looks like environmental stress. As in hot, dry, and likely more sunlight than previously. In other words, scorched.
Presumably this is an outside plant.
Maybe there has been a sudden hot spell. Maybe there has been some sort of change adding more sun. Maybe not enough water.
From paucity of info and low-res foto provided, I'm with jean and WAGing garden variety environmental stress. It's only ivy and very hard to kill, esp in jean's neck of the woods, where the woods are overrun with it - to the point of choking out everything, changing water regimes, having to organize volunteer armies to eradicate, etc.