woolly aphids or american blight eriosoma lanigerum on apple

agriculture american animal aphid apple biological blight branch bug closeup colony control crops damage defense disease eriosoma garden gardening home honeydew horticulture host insect insecticides invasive killer lanigerum leaf lice louse macro mealybugs nature parasite pest pesticide pests plague plant plants problem repellent sap scale small sticky suck tree vector wilting woolly