These horrid little critters like inhabiting our two young pear trees towards the end of summer each year. The best (chemical free) way of getting rid of them is by picking them all off the leaves. It's not difficult, but not pleasant either. They have this sickly sweet smell... it will take a few goes to get them all, but better that than allow them to continue eating all the leaves. You can see below the damage they have done.
Younger winemakers descend on Tasmania
15 hours ago