Search Results - "Jetton, Robert M."

Sesquiterpene Induction by the Balsam Woolly Adelgid (Adelges piceae) in Putatively Resistant Fraser Fir (Abies fraseri) by Austin Thomas, David C. Tilotta, John Frampton, Robert M. Jetton

“…Fraser fir, Abies fraseri (Pursh) Poir., is a tree endemic to the Southern Appalachians and is found only in a few isolated populations at high elevations…”
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Important Insect and Disease Threats to United States Tree Species and Geographic Patterns of Their Potential Impacts by Kevin M. Potter, Maria E. Escanferla, Robert M. Jetton, Gary Man

“…Diseases and insects, particularly those that are non-native and invasive, arguably pose the most destructive threat to North American forests. Currently, both…”
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Comparison of Suspended Branch and Direct Infestation Techniques for Artificially Infesting Hemlock Seedlings with the Hemlock Woolly Adelgid for Resistance Screening by Zaidee L. Powers, Albert E. Mayfield, John Frampton, Robert M. Jetton

“…The hemlock woolly adelgid (Adelges tsugae Annand) is an invasive forest pest in eastern North America that has caused significant decline and mortality in…”
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Differential sunlight exposure affects settling behaviour of hemlock woolly adelgid crawlers by Mayfield, Albert E., Jetton, Robert M.

“…Previous research demonstrated that elevated sunlight improves carbon balance and growth of eastern hemlock (Tsuga canadensis (L.) Carrière) seedlings infested…”
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Banking on the future: progress, challenges and opportunities for the genetic conservation of forest trees by Potter, Kevin M., Jetton, Robert M., Bower, Andrew, Jacobs, Douglass F., Man, Gary, Hipkins, Valerie D., Westwood, Murphy

“…Genetic diversity provides the essential basis for the adaptation and resilience of tree species to environmental stress and change. The genetic conservation…”
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Phenology and Voltinism of Emerald Ash Borer (Coleoptera: Buprestidae) in Central North Carolina by Bohannon, G. Ryan, Johnson, Courtney L., Jetton, Robert M., Oten, Kelly L. F.

“…The emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), has killed millions of ash (Fraxinus spp.) trees across North America…”
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Elevated light levels reduce hemlock woolly adelgid infestation and improve carbon balance of infested eastern hemlock seedlings by Brantley, Steven T., Mayfield, Albert E., Jetton, Robert M., Miniat, Chelcy F., Zietlow, David R., Brown, Cindi L., Rhea, James R.

“…•Higher light levels reduced HWA density on potted hemlock seedlings.•Higher light levels were not correlated with increased assimilation or leaf sugar…”
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Table Mountain Pine ( Pinus pungens ): Genetic Diversity and Conservation of an Imperiled Conifer by Potter, Kevin M, Jetton, Robert M, Whittier, W Andrew, Crane, Barbara S, Hipkins, Valerie D, Echt, Craig S, Hodge, Gary R

“…Table Mountain pine (Pinus pungens Lamb.) is an imperiled tree species endemic to the southern and central Appalachian Mountains. Generally reliant on fire for…”
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Hosts and impacts of elongate hemlock scale (Hemiptera: Diaspididae): A critical review by Venette, Robert C, Ambourn, Angie, Aukema, Brian H, Jetton, Robert M, Petrice, Toby R

“…Ferris, elongate hemlock scale, was inadvertently introduced to North America from Japan. This insect is particularly problematic on hemlock, spp., though it…”
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Arthropod and Disease Management in Fraser Fir (Pinales: Pinaceae) Christmas Trees in the Southeastern United States by Darr, Molly N, Coyle, David R, Jetton, Robert M

“…Fraser fir, Abies fraseri [Pursh] Poir., is one of the most desired Christmas tree species owing to its fragrance, physical appearance, and durability. This…”
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Ecology, Impacts, and Management of Common Late-season Defoliators of Southern Hardwoods by Oten, Kelly L F, Jetton, Robert M, Coyle, David R

“…Late-season lepidopteran defoliators in the genera Anisota, Dryocampa, Datana, and Lochmaeus are usually considered minor pests which primarily cause aesthetic…”
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Shade and Hemlock Woolly Adelgid Infestation Increase Eastern Hemlock Foliar Nutrient Concentration by Lapham, Marika, Miniat, Chelcy d, Mayfield, Albert E, Jetton, Robert M, Brantley, Steven T, Zietlow, David R, Brown, Cindi, Rhea, James R

“…Tsuga canadensis (L.) Carr. (eastern hemlock) is dying across much of eastern North America from the invasive hemlock woolly adelgid (HWA, Adelges tsugae…”
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Prioritizing the conservation needs of United States tree species: Evaluating vulnerability to forest insect and disease threats by Potter, Kevin M., Escanferla, Maria E., Jetton, Robert M., Man, Gary, Crane, Barbara S.

“…Insect and disease infestations pose major threats to several North American forest tree species. Scientists and managers from throughout the United States…”
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Population isolation results in unexpectedly high differentiation in Carolina hemlock (Tsuga caroliniana), an imperiled southern Appalachian endemic conifer by Potter, Kevin M., Campbell, Angelia Rose, Josserand, Sedley A., Nelson, C. Dana, Jetton, Robert M.

“…Carolina hemlock ( Tsuga caroliniana Engelm.) is a rare conifer species that exists in small, isolated populations within a limited area of the Southern…”
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Prioritizing conservation seed banking locations for imperiled hemlock species using multi-attribute frontier mapping by Hastings, John M., Potter, Kevin M., Koch, Frank H., Megalos, Mark, Jetton, Robert M.

“…Hemlock woolly adelgid ( Adelges tsugae Annand) (HWA) is an invasive forest insect sweeping across the native range of eastern ( Tsuga canadensis [L.] Carr.)…”
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Effects of Artificial Defoliation on Growth and Biomass Accumulation in Short-Rotation Sweetgum (Liquidambar styraciflua) in North Carolina by Jetton, Robert M., Robison, Daniel J.

“…Sweetgum, Liquidambar styraciflua L. (Hamamelidales: Hamamelidaceae), is a species of interest for short-rotation plantation forestry in the southeastern…”
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Widespread inbreeding and unexpected geographic patterns of genetic variation in eastern hemlock (Tsuga canadensis), an imperiled North American conifer by Potter, Kevin M., Jetton, Robert M., Dvorak, William S., Hipkins, Valerie D., Rhea, Rusty, Whittier, W. Andrew

“…Eastern hemlock ( Tsuga canadensis [L.] Carr.) is an ecologically important tree species experiencing severe mortality across much of its eastern North…”
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Ecological and genetic factors that define the natural distribution of Carolina hemlock in the southeastern United States and their role in ex situ conservation by Jetton, Robert M., Dvorak, William S., Whittier, W. Andrew

“…Carolina hemlock ( Tsuga caroliniana Engelm.) is a rare endemic found in the Appalachian Mountains and Upper Piedmont of the southeastern United States. It is…”
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Development of a Rain Down Technique to Artificially Infest Hemlocks with the Hemlock Woolly Adelgid, Adelges tsugae by Jetton, Robert M., Mayfield, Albert E., Powers, Zaidee L.

“…The hemlock woolly adelgid Adelges tsugae Annand (Hemiptera: Adelgidae), is a non-native invasive pest that has caused widespread decline and mortality of…”
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Laboratory Studies of Feeding and Oviposition Preference, Developmental Performance, and Survival of the Predatory Beetle, Sasajiscymnus tsugae on Diets of the Woolly Adelgids, Adelges tsugae and Adelges piceae by Jetton, Robert M., Monahan, John F., Hain, Fred P.

“…The suitability of the balsam woolly adelgid, Adelges piceae Ratzeburg (Hemiptera: Adelgidae) as an alternate mass rearing host for the adelgid predator,…”
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