Excuse me, how is it that there are many black spots on the leaves of Euonymus japonicus? What should I do? (Is it a genetic variation? )

The possibility of black spot disease is very high. Go to the flower shop to buy Baiyinqing or zineb for foliar spraying, and spray according to the instructions. By the way, it's not genetic variation, because genetic variation only happens under special conditions, such as orchids. Many people grow orchids with pebbles and expose them to the sun for several hours. Suddenly, they moved them to the shade to cool down quickly, and then exposed them to the sun. Repeat every day, so that orchids are original.