They've been a talking point in the PM newsletter.
Anthony Harrison in North Yorkshire writes:
"Over the last weekend I have been repairing the damage done to my gate by wasps eating the top bar. It took 1½ tins of wood filler to repair. I have just finished re-painting it with wood preserver and now look at the damage already done to it. The three photos show some of the new damage and the whitish stuff is the filler which they have re-exposed."