Through May and June black aphids were sucking the life out of the little wild cherry trees in the garden (funnily enough, they completely ignored the cultivated varieties).
These little suckers are almost certainly the black cherry aphid, Myzus cerasi. Their scientific name is apt as it more or less means a cherry sucker.
It is difficult to watch the destruction these aphids wreak. And it’s hard to believe that they won’t completely kill the trees they infest; especially if they are just young saplings. But, by and large, although these aphids make an unsightly and worrisome mess, cherry trees will recover.
By the end of June or early in July, the aphids will move on to their herbaceous wild plant hosts and leave the cherries with time to recover.
The bad news is that another generation of the aphids will come back in the autumn to lay their eggs on the cherry trees. Those eggs will sit there through the winter, ready to start the whole saga again the following spring.