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22 Images of 7 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
1318022 walnut Juglans spp.
5458322 walnut twig beetle Pityophthorus juglandis Walnut twig beetle residing in a gallery under the bark of black walnut.
5458323 walnut twig beetle Pityophthorus juglandis Walnut twig beetle demonstration of extremely small size. Pulled out of a gallery and shown on the end of a craft brush.
5458324 Thousand Cankers Disease Geosmithia morbida Thousand cankers disease showing walnut twig beetle galleries and Geosmithia morbida cankers on black walnut.
5458325 walnut twig beetle Pityophthorus juglandis Entrance and exit holes of the walnut twig beetle on black walnut.
5458327 walnut twig beetle Pityophthorus juglandis Walnut twig beetle larvae residing in a gallery under the bark of a black walnut.
5458328 walnut twig beetle Pityophthorus juglandis Walnut twig beetle larvae residing in a gallery under the bark of a black walnut.
5458326 walnut twig beetle Pityophthorus juglandis Walnut twig beetle larvae residing in a gallery under the bark of a black walnut.
5458329 Thousand Cankers Disease Geosmithia morbida Thousand cankers disease symptoms of flagging on a mature black walnut.
5458330 Thousand Cankers Disease Geosmithia morbida Thousand cankers disease symptoms on a mature black walnut.
5458331 Thousand Cankers Disease Geosmithia morbida Thousand cankers disease symptoms of flagging on a mature black walnut.
5458332 Thousand Cankers Disease Geosmithia morbida Thousand cankers disease symptoms of flagging on a mature black walnut.
5458333 Thousand Cankers Disease Geosmithia morbida Thousand cankers disease symptoms of advanced decline on a mature black walnut.
5458334 Thousand Cankers Disease Geosmithia morbida Thousand cankers disease symptoms of advanced decline on a mature black walnut.
5458335 Thousand Cankers Disease Geosmithia morbida Thousand cankers disease symptoms of advanced decline on a mature black walnut.
5123025 walnut scale Diaspidiotus juglansregiae
5382183 walnut twig beetle Pityophthorus juglandis Extensive galleries produced in bark of large branch.  
5382184 walnut twig beetle Pityophthorus juglandis Exit holes.  
5382163 Arizona walnut Juglans major Photograph of leaves and developing nuts taken July 18, 2008  
5190070 walnut husk fly Rhagoletis completa
3225052 walnut caterpillar Datana integerrima several larvae
3225053 walnut caterpillar Datana integerrima

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