So I got these two araucaria-heterophylla or norfolk pine few years back. I am from kashmir, India so the temperature is relatively cold here and these two plants have started to dry. So I went to the local plant store and told him this. He asked me to not over water the plants and spray these two chemicals on them : Carbendazim 12% +Mancozeb 3% and organic NPK on alternate days and move the plant to shade. I did. It's been 3 days it's not working. So he said spray Carbendazim 12% +Mancozeb 3% on the root.

I did that too. Should I do something else to increase their chances of survival. Is there any chance of these plants surviving.