In my family, when the leaves grow up, there will be white spots, and the leaves will roll north. Who can tell me how to treat it?

It is very likely that there are "scale insects".

1, the most effective and simplest way is to take a wet rag and wipe it hard.

2. Soak 5-6 cigarette filters in 2kg of water overnight, take out the cigarette filters, add soybean-sized washing powder, fully stir and spray. Once a week, spray 5-8 times.