Pest Control Wirral, Liverpool, Chester and Ellesmere Port.
A call out for wasps yesterday. When I got there the guy took me round the back of the house to show me where his wasps were entering in to breathers above a window. As soon as I saw it I knew it was red mason bee’s. They lay eggs at the bottom of holes in walls. They will then fill it with pollen for the grubs to eat when the egg hatches. They will lay as many eggs as they can depending on the depth of the hole. They often use these window breathers or another common place is where there has been a screw or rawl plug which has been removed leaving the hole. They can cause minor damage to already old walls but are not a major problem. This customer still wanted them removing as they were having a barbeque today. (In the photo you can just see one of the bees in the bottom hole.)