Wasp usually seen in the spring and summer in vancouver. There arefew types of wasp surrounding BC, most people know and fear the yellow and black striped yellow jacket wasps tat are common. All wasps are live in lrge colonies to a nest. Their strings are painful and some people allergic ot it. Many wasps are very aggressive so donot approch them without any precaution. During the winter month queen stay dorment in the nest and next season produce larvae, they quickly grow and expend. So it is very important take care of wasp nest very quickly prevent you and ur home.