Teachers, what happened to my cherry tip?

It is caused by virus infection of cherry tomato. We should focus on the prevention of tomato virus disease to reduce the loss of meteorites, and a small amount can be removed. It can be sprayed with amino oligosaccharide and lentinan, foliar fertilizer containing zinc or microelement foliar fertilizer (containing zinc), abietylamine, propafenone or nitenpyram or dinotefuran to prevent the spread of whiteflies, aphids, thrips and mites, every 5-7 days 1 time, 2-3 times in a row.