Host Resistance of Five Fraxinus Species to Agrilus planipennis (Coleoptera: Buprestidae) and Effects of Paclobutrazol and Fertilization

Environmental Entomology, Journal Year: 2015, Volume and Issue: 44(2), P. 287 - 299

Published: Jan. 25, 2015

Agrilus planipennis Fairmaire (Coleoptera: Buprestidae) has killed millions of Fraxinus spp. trees in North America. While all species assessed to date can be colonized, A. attraction host varies among and with tree health. We established a plantation 105 (21 each four American americana L., nigra Marshall, pennsylvanica quadrangulata Michaux, the Asian species, mandshurica Ruprecht), determined whether resistance could enhanced by fertilizer or paclobutrazol applications. Differences overshadowed most treatment effects. In 2010, survival over 14 d was 53% when beetles were caged F. , 30–32% only 14% for . 2011, beetle lower (33%) than (72%) (80%). 2010 leaf weight consumed same species. However, on less area that other ash exposed wild larval density (per m 2 ) highest (235.9 ± 36.41) (220.1 39.77), intermediate (40.7 11.61), lowest (2.0 0.98 1.5 0.67, respectively). Results indicate relatively resistant highly vulnerable, intermediate.

Language: Английский

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Integrating ancient patterns and current dynamics of insect–plant interactions: Taxonomic and geographic variation in herbivore specialization

Insect Science, Journal Year: 2010, Volume and Issue: 17(6), P. 471 - 507

Published: Sept. 5, 2010

Abstract The search for pattern in the ecology and evolutionary biology of insect–plant associations has fascinated biologists centuries. High levels tropical (low‐latitude) plant insect diversity relative to poleward latitudes disproportionate abundance host‐specialized herbivores have been noted. This review addresses several aspects local specialization, host use abilities (and loss these with specialization), host‐associated divergence, ecological (including “hybrid”) speciation, special reference generation biodiversity geographic taxonomic identification “species borders” swallowtail butterflies (Papilionidae). From ancient phytochemically defined angiosperm affiliations that trace back millions years recent very specialized populations, Papilionidae (swallowtail butterflies) provided a model enhanced understanding localized patterns genetically based processes. They served as useful group evaluating feeding specialization/physiological efficiency hypothesis. shown how abiotic (thermal) environment interacts nutrirional suitability generate “voltinism/suitability” gradients specialization or preference latitudinally, geographical mosaics locally. Several studies reviewed here suggest strongly oscillation hypothesis speciation does considerable merit, but at same time, some species‐level specializations may lead dead‐ends, especially rapid environmental/habitat changes involving their plants. Latitudinal species richness degree herbivore impacted by developments genetics ecology. Localized span biospectrum from polyphenisms, polymorphisms, biotypes, demes, races, cryptic species, remain academically contentious, simple definitions still debated. However, molecular analyses combined ecological, ethological physiological studies, already begun unveil answers many important ecological/evolutionary questions.

Language: Английский

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Effects of climate on emerald ash borer mortality and the potential for ash survival in North America

Agricultural and Forest Meteorology, Journal Year: 2013, Volume and Issue: 178-179, P. 120 - 128

Published: May 30, 2013

Language: Английский

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Regional assessment of emerald ash borer, Agrilus planipennis, impacts in forests of the Eastern United States

Biological Invasions, Journal Year: 2016, Volume and Issue: 19(2), P. 703 - 711

Published: Oct. 18, 2016

Language: Английский

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Divergence of the potential invasion range of emerald ash borer and its host distribution in North America under climate change

Climatic Change, Journal Year: 2013, Volume and Issue: 122(4), P. 735 - 746

Published: Dec. 13, 2013

Language: Английский

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