San José scale
affecting apple and pear orchards. Both nymphs and adult females feed by inserting their mouthparts into twigs, branches, leaves, and fruit, removing plant [...] plant sap and weakening the tree. Heavy infestations can reduce tree vigor, lower fruit quality, and significantly decrease marketable yield. The insect [...] protective waxy scales on twigs and branches. Spring development As temperatures rise in spring, nymphs resume feeding and develop into adults. After mating