My American black currants are sick I think! I’m not sure what to do. First the leaves were pretty chewed by insects, then most turned brown, dried up and fell off. This has been going on for months and it’s steadily getting worse.
Maybe I haven’t been fertilizing enough? Maybe it’s a fungus? The leaves are turning brown and falling off but it’s not cold enough yet for it to be a changing season. When I got the soil tested it wasn’t great, but it wasn’t horrible, and the raspberries nearby are doing great. Zone 7, North Carolina.