Help! Fluffy white insects
I found some of these sort of cocoons on an ivy plant in my garden, and then noticed some similar white fluff on an apple tree. I'm sure they're both very recent. The ivy ones look just like larvae, but I have no idea what they are and how dangerous - are they going to spread to other plants? And is the fluff on the apple tree the same? I'm a very new gardener having just bought my first house and have no idea about most things Thank you!