Impact of defoliation caused by the sawfly Cephalcia lariciphila (Hymenoptera: Pamphilidae) on radial growth of larch (Larix decidua Mill.)

Vejpustková, Monika; Holuša, Jaroslav

doi:10.1007/s10342-006-0112-z

Cited by 17 publications

(9 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, as winter moth defoliates Quercus while the leaves are expanding, and since latewood growth is proportionally dependent upon actively produced photosynthate from within the current year, the photosynthetic capabilities of the defoliated tree may be reduced and/or photosynthate may be allocated to processes (e.g., defense, re-leafing) other than latewood growth. This relationship between defoliation in the current year and latewood growth has been demonstrated with other defoliators [ 26 , 45 , 46 , 47 , 48 ].…”

Section: Discussionsupporting

confidence: 69%

Effects of Invasive Winter Moth Defoliation on Tree Radial Growth in Eastern Massachusetts, USA

Simmons

Lee

Ducey

et al. 2014

Insects

View full text Add to dashboard Cite

Winter moth, Operophtera brumata L. (Lepidoptera: Geometridae), has been defoliating hardwood trees in eastern Massachusetts since the 1990s. Native to Europe, winter moth has also been detected in Rhode Island, Connecticut, eastern Long Island (NY), New Hampshire, and Maine. Individual tree impacts of winter moth defoliation in New England are currently unknown. Using dendroecological techniques, this study related annual radial growth of individual host (Quercus spp. and Acer spp.) trees to detailed defoliation estimates. Winter moth defoliation was associated with up to a 47% reduction in annual radial growth of Quercus trees. Latewood production of Quercus was reduced by up to 67% in the same year as defoliation, while earlywood production was reduced by up to 24% in the year following defoliation. Winter moth defoliation was not a strong predictor of radial growth in Acer species. This study is the first to document impacts of novel invasions of winter moth into New England.

show abstract

Section: Discussionsupporting

confidence: 69%

Effects of Invasive Winter Moth Defoliation on Tree Radial Growth in Eastern Massachusetts, USA

Simmons

Lee

Ducey

et al. 2014

Insects

View full text Add to dashboard Cite

show abstract

“…Forests of almost any composition of species worldwide can be affected by insect infestations and subsequent dieback, leading to devastating results (e.g. Vejpustková & Holuša 2006; Carus 2009). The impact of insect herbivory looms as a significant threat to the health of large areas of forest worldwide, as habitats are placed under ever increasing levels of anthropogenic stress (Crawley 1989).…”

Section: Introductionmentioning

confidence: 99%

Non‐lethal foraging by bell miners on a herbivorous insect: Potential implications for forest health

Haythorpe

McDonald²

2010

Austral Ecology

View full text Add to dashboard Cite

Tree health is often negatively linked with the localized abundance of parasitic invertebrates. One group, the sap-sucking psyllid insects (Homoptera: Psyllidae) are well known for their negative impact upon vegetation, an impact that often culminates in the defoliation and even death of hosts. In Australia, psyllid-infested forest in poor health is also frequently occupied by a native honeyeater, the bell miner (Manorina melanophrys; Meliphagidae), so much so that the phenomenon has been dubbed 'bell miner-associated dieback' (BMAD). Bell miners are thought to be the causative agent behind BMAD, in part because the species may selectively forage only upon the outer covering (lerp) exuded by psyllid nymphs, leaving the insect underneath to continue parasitizing hosts. As bell miners also aggressively exclude all other avian psyllid predators from occupied areas, these behavioural traits may favour increases in psyllid populations. We examined bell miner foraging behaviour to determine if non-lethal foraging upon psyllid nymphs occurred more often than in a congener, the noisy miner (M. melanocephala; Meliphagidae). This was indeed the case, with bell miners significantly more likely to remove only the lerp covering during feeding, leaving the insect intact underneath. This arose from bell miners using their tongue to pry off the lerp cases, whereas noisy miners used their mandibles to snap at both the lerp and insect underneath. Furthermore, psyllids left behind following a bell miner foraging event were significantly more likely to be viable and regrow a lerp covering than those exposed by noisy miners. Together, this behaviour supports the theory that non-lethal foraging behaviour of bell miners may contribute to high psyllid abundance, consistent with the mechanisms by which BMAD is thought to develop.

show abstract

“…and European larch (Larix decidua Mill.) that had been defoliated by the European web-spinning larch sawfly (Cephalcia lariciphila Wachtl) (Filion and Cournoyer, 1995;Vejpustkova and Holusa, 2006). In years, when insect defoliation depletes the tree's resources to an extreme level, the tree may form no annual ring or may only form xylem cells incompletely around the circumference of the cambium.…”

Section: Discussionmentioning

confidence: 99%

“…Given eastern hemlock's late successional status and its responsiveness to climate, most eastern hemlock tree-ring studies have focused on reconstructing stand dynamics or reconstructing climate-growth relationships (Abrams et al, 2000;Hart et al, 2010); however, the introduction of HWA provides an unusual opportunity to study the decline and mortality of a foundation species through its tree-ring record. Previous studies on other insect-defoliated trees have shown a consistent pattern of reduced radial growth following infestation because the consumption of foliage results in a loss of stored carbohydrates and lower potential photosynthetic rates (Vejpustkova and Holusa, 2006). These reductions in growth within the host species are typically accompanied by growth increases in non-host trees as mortality of the host species increases availability of light, space, and nutrients (Alfaro et al, 1991).…”

Section: Introductionmentioning

confidence: 92%

Radial growth changes following hemlock woolly adelgid infestation of eastern hemlock

Walker¹,

Copenheaver²,

Zink-Sharp³

2014

Annals of Forest Science

View full text Add to dashboard Cite

• Context Hemlock woolly adelgid (Adelges tsugae) is an invasive insect that is defoliating and killing eastern hemlock (Tsuga canadensis) in the USA. • Aims We quantified changes in tree-ring growth rates and wood anatomy for living trees infested with hemlock woolly adelgid across six sites from Massachusetts (42°41′N) to Georgia (34°53′N) to identify growth responses of eastern hemlock that had survived infestation. • Methods Annual ring widths from infested eastern hemlocks were cross-dated and measured. Growth rates before and after infestation were compared. Two infested trees from Virginia were cut, and thin sections were prepared to identify changes in cell properties. • Results At three sites, trees experienced a significant decrease in radial growth after hemlock woolly adelgid arrival; however, the other three sites showed no change or increase in growth. Latewood produced after hemlock woolly adelgid infestation had significantly smaller cells with reduced cell wall thickness compared to latewood prior to infestation. • Conclusion At half the sites where hemlock woolly adelgid infested eastern hemlock trees were sampled, radial growth increased or remained unchanged. This unexpected response may be due to reduced competition due to mortality of other eastern hemlocks or physiological compensatory responses of increased photosynthetic rate and increased water use efficiency experienced by eastern hemlock infested with hemlock woolly adelgid.

show abstract

Impact of defoliation caused by the sawfly Cephalcia lariciphila (Hymenoptera: Pamphilidae) on radial growth of larch (Larix decidua Mill.)

Cited by 17 publications

References 8 publications

Effects of Invasive Winter Moth Defoliation on Tree Radial Growth in Eastern Massachusetts, USA

Effects of Invasive Winter Moth Defoliation on Tree Radial Growth in Eastern Massachusetts, USA

Non‐lethal foraging by bell miners on a herbivorous insect: Potential implications for forest health

Radial growth changes following hemlock woolly adelgid infestation of eastern hemlock

Contact Info

Product

Resources

About