an agronomist examines a young plum tree infested with spider baptism and aphids in the garden.the use of insecticides in

agriculture agronomist animal aphid aphididea aphidoidea aphids baptism biology black blackfly branch bug caterpillar cerasi cherry crop curled damage dangerous ecology environment examines foliage garden gardener gardening growth infestation infested insect insecticide insecticides insects invasion leaf mite monitoring myzus organic parasite parasites pathology pest pesticide phytophthora plant plum poison spider spotted stem tetranychidae tetranychus tiny tree urticae use young