You say pest but aren't specific-is the fruit partially eaten, missing altogether or something else? If it's missing it's either animal or human predators who are the culprits. In that case, netting will provide a barrier of protection. read more
Plums have known issues with insects, fungi, birds and your neighbour Billy, just to name a few of the things that can damage or eat the fruit. But even if you know what it is you should still try to distinguish: what kind of insect, what kind of fungus. read more