Results 81 to 90 of about 22,789 (275)
Journal of Forest Science, 2002 A new method for evaluating damage caused by tenthredinids to Norway spruce stands is based on defoliation of the top whorls. A scale with four classes of defoliation was established that is easy to use. Defoliation can be displayed graphically on a grid
J. Holuša, O. Holuša
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Entomologia Experimentalis et Applicata, EarlyView.Actia interrupta is an important larval tachinid parasitoid during low‐density populations of the eastern spruce budworm. In the late 1980s during the outbreak collapse, Meteorus trachynotus was initially the most important species, but was replaced by A. interrupta. Host patch size and density had no impact on the parasitism rates by A.
Véronique Martel +2 more
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PLoS ONE, 2014 BackgroundHerbivore grazing is a multiple-component process that includes wounding, defoliation, and saliva deposition. Despite the extensive published research on mechanical wounding and defoliation, no analysis to identify the genes that specify ...
Shuangyan Chen +8 more
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Entomologia Experimentalis et Applicata, EarlyView.We describe methods for collecting and rearing the tachinid parasitoid Istocheta aldrichi from parasitized Japanese beetle adults. Hosts can be collected by hand and reared in the laboratory, or by using modified trap containers with added plant material and substrate to provide suitable conditions for I.
Simon Legault +3 more
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Effects of Invasive Winter Moth Defoliation on Tree Radial Growth in Eastern Massachusetts, USA
Insects, 2014 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
Michael J. Simmons +5 more
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, 2009 Cotton (Gossypium hirsutum L.) grown in North Carolina requires intensive management for achieving optimal yields in an early-season environment. Recent increases in production costs require cotton producers to adopt practices that allow yield potential
Collins, Guy David
core
Entomologia Experimentalis et Applicata, EarlyView.An integrated framework combining geometric morphometrics and ecological niche modeling was applied to Cydalima perspectalis to assess intergenerational morphological variation, test sexual dimorphism, and predict future distribution under climate scenarios. Wing shape effectively discriminated between generations but not between sexes.
Nurver Altun +2 more
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Entomologia Experimentalis et Applicata, EarlyView.Actia interrupta is a larval tachinid parasitoid that plays a key role in regulating low‐density populations of the eastern spruce budworm. We describe its immature stages, life‐history traits, host‐searching behavior, development, and confirm its larviparous reproductive strategy.
Véronique Martel +3 more
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Birch Leaves as a Minefield: Do Trichomes Mediate Neonate Caterpillar Site Selection?
Entomologia Experimentalis et Applicata, EarlyView.We investigated whether neonate Drepana arcuata caterpillars select leaf sites based on trichome distribution. Specifically, we assessed where larvae establish on leaves, quantified trichome distribution on leaves, and tested whether neonates avoid leaf trichomes. Neonates preferentially established and fed on areas with fewer trichomes, especially the
Leonardo M. Turchen +2 more
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Defoliation percentage in two soybean cultivars at different growth stages
Revista Brasileira de Engenharia Agrícola e Ambiental, 2015 The objective of this study was to evaluate the agronomic variables due to the effects of different levels of defoliation in the phenological phases of two soybean cultivars. The experiment was conducted during the 2011/2012 season, in a randomized block
Cláudio A. da S. Glier +5 more
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