Something eating leaves on our plum trees
Can anyone offer advice on the above, the trees were fine 2 weeks ago, now the leaves are being eaten on all 3 trees. Some leaves are distorted & discoloured but the plums don't look to have been affected (yet). They are all on our allotment & as far as we know no-one else seems to have the same problem. They've been fine in previous years. We can't see any bugs on the leaves & just don't know what to do. They aren't old trees, the eldest has only been in about 6 years. Peach leaf curl has been suggested but we don't know for sure. The new Victoria is as yet unaffected. Any advice for treatment or prevention please. Are we going to lose them?