California red scale
young over a period of six to eight weeks, at a rate of one to three a day. The crawlers are mobile and very small, so they are spread easily by the wind and [...] humans and their tools. In the hours after birth, they disperse over the tree in search of a source of food. When attracted by the light (positive phototaxis) [...] t. The females moult into the grey stage, named after the colour of the edges of their shield. Mating occurs at the start of this stage, before the female