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Image Subject Name Scientific Name Description
5406082 walnut twig beetle Pityophthorus juglandis Lindgren funeling trapping of walnut twig beetle in Wheat Ridge, colorado. tree died during spring 2009.
5406059 walnut twig beetle Pityophthorus juglandis Pupae within trunk.
5406060 walnut twig beetle Pityophthorus juglandis Larvae and pupa. The geosmithia fungal associate is sporulating profusely around the pupal cells.
5406061 walnut twig beetle Pityophthorus juglandis Beetle gallery in Arizona wlanut. Callus tissue borders and confines this point of injury.
5406063 walnut twig beetle Pityophthorus juglandis External view of beetle gallery in Arizona walnut. Callus tissue borders and confines this point of injury.
5406064 walnut twig beetle Pityophthorus juglandis Logs skinned with a draw knife. These logs were highly attractive to adults, but larval survival was not noted in the skinned logs.
5406065 walnut twig beetle Pityophthorus juglandis Logs debarked with a chain saw. Numerous larvae successfully completed development in this log.
5406058 walnut twig beetle Pityophthorus juglandis Adult beetles withini nuptial chamber.

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