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Debbie Miller's Images

Organization: USDA Forest Service
Country: United States
8 Images of 2 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5449548 Encyrtid wasp Oobius agrili Oobius agrili parasitizing egg of emerald ash borer
5449376 emerald ash borer Agrilus planipennis Emerald ash borer adults chew D-shaped emergence holes to exit from ash trees.
5449377 emerald ash borer Agrilus planipennis The eggs of emerald ash borer are laid on ash trees in bark crevices or between bark layers.  The eggs are white when first laid, but soon turn an amber color.
5449378 emerald ash borer Agrilus planipennis Neonate larva of emerald ash borer after hatching from its egg in the laboratory.  The dime is for scale.
5449379 emerald ash borer Agrilus planipennis In spring and summer, emerald ash borer (EAB) larvae pupate in cells chewed by mature larvae in the outer sapwood or bark of ash trees.  This photo shows gradual maturation of EAB pupae to the adult stage by holding J-larvae or prepae, dissected from infested ash trees, in Petri dishes.  This process takes about a month. 
5449385 Encyrtid wasp Oobius agrili Oobius agrili (Encyrtidae), a solitary and parthenogenic egg parasitoid of emerald ash borer (EAB) native to China, is ovipositing in an EAB egg. 
5449380 emerald ash borer Agrilus planipennis Emerald ash borer adult feeding on an ash leaf.
5449381 emerald ash borer Agrilus planipennis Eggs of emerald ash borer are ~1mm in diamater and amber in color.  Females lay their eggs on ash trees in bark crevices and between layers of bark.  To find eggs in the field, we use a sharp knife to separated bark layers, exposing the eggs,

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