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Life cycle of Calepitrimerus baileyi. The mite can complete several generations (egg‐NI‐NII‐protogyne adult) on apple leaves during the growing season (spring through autumn). When winter approaches female deutogynes, which are morphologically different from protogynes, look for shelter under loose bark of spurs and 1‐year‐old shoots to hibernate. Deutogynes re‐start the cycle the following spring (Source: J.A. Jaques).
