Results 71 to 80 of about 22,789 (275)

Determination of the impact of continuous defoliation of Lolium perenne and Trifolium repens on bacterial and fungal community structure in rhizosphere soil

, 2005
To determine the effects of defoliation on microbial community structure, rhizosphere soil samples were taken pre-, and post-defoliation from the root tip and mature root regions of Trifolium repens L. and Lolium perenne L.
Clayton, S. J., Gregory, P. J., Clegg, C. D., Murray, P. J., Clegg, C D, Murray, P J, Gregory, Patricia, Clayton, Stephen   +7 more
core   +1 more source

Silencing of juvenile hormone‐related genes through RNA interference leads to molt failure and high mortality in the spongy moth

Insect Science, EarlyView.
The feasibility of using RNA interference to control the globally important quarantine pest, the spongy moth. Targeting genes related to JHs play an important role in the growth and development of insects. First, the open reading frames (ORFs) of Ldjhamt and Ldjheh were identified and characterized, and the target genes were cloned and double‐stranded ...
Wenzhuai Ji, Qing Xie, Xiaoxiao Chang, Juan Shi   +3 more
wiley   +1 more source

Patterns and Drivers of Pine Processionary Moth Defoliation in Mediterranean Mountain Forests

Frontiers in Ecology and Evolution, 2019
Insect defoliations are one of the threats of forests health, and climate warming may enhance the occurrence of more severe outbreaks. Thus, understanding the spatial and temporal patterns of insect defoliation may provide valuable information to infer ...
Antonio Gazol, Rodolfo Hernández-Alonso, J. Julio Camarero   +2 more
doaj   +1 more source

Offspring performance does not explain oviposition preference in the leafminer Stigmella sorbi (Lepidoptera: Nepticulidae): a tri‐trophic perspective

Insect Science, EarlyView.
We studied oviposition site selection in a leaf‐mining moth (Stigmella sorbi) on rowan trees (Sorbus aucuparia) in northwestern Russia, assessing larval performance across different shoot types, leaf positions, and leaflets. Larval survival was highest on long vegetative shoots, yet females showed no preference for these optimal sites.
Mikhail V. Kozlov, Vitali Zverev
wiley   +1 more source

APLIKASI BEBERAPA INOKULAN Rhizobium DAN INTERVAL PEMOTONGAN HIJAUAN PAKAN TERNAK Stylosanthes guyanensus TERHADAP KANDUNGAN NITROGEN TANAH DI LAHAN KERING

Journal of Biological Researches, 2014
This research on discovering compatible Rhizobium inoculum for Stylosanthes guyanensis, the influence of defoliation interval on forage and the influence of interaction between inoculum and defoliation interval on nitrogen content in dry land had been ...
Kusriningrum Rochiman
doaj  

Matrine–Tea Saponin Synergism Involves Suppressed Detoxification and Digestion in a Leaf Beetle

Integrative Zoology, EarlyView.
Tea saponin and matrine showed synergistic toxicity against Plagiodera versicolora. Combined exposure suppressed digestion‐ and detoxification‐related processes, while silencing the trypsin gene Pver105950 and chitinase gene Pver001190 increased larval susceptibility to tea saponin and matrine, respectively.
Owais Khan, Xiayu Li, Yanping Zhang, Runhua Han, Letian Xu   +4 more
wiley   +1 more source

Neonicotinoid seed treatments do not consistently reduce insect feeding damage nor increase yields in Maryland soy

Agricultural and Forest Entomology, EarlyView.
We compared soybean plants from untreated and treated seeds across 4 sites and 3 years in Maryland. Neonicotinoid seed treatments (NST) provided little reduction in insect stippling damage and no reduction in chewing damage. NST did not result in increased plant biomass or bean yield. Abstract The use of neonicotinoid insecticides in seed treatments in
Kelsey J. McGurrin, Brendan A. Randall, John D. Parker, Karin T. Burghardt, Kimberly J. Komatsu   +4 more
wiley   +1 more source

Defoliation, Shoot Plasticity, Sward Structure and Herbage Utilization in Pasture: Review of the Underlying Ecophysiological Processes

Agriculture, 2015
Sward structure affects herbage growth, pasture species dynamics, and herbage utilization. Defoliation management has a major impact on sward structure.
François Gastal, Gilles Lemaire
doaj   +1 more source

Status of ash (Fraxinus spp.) in mixed hardwood post‐outbreak forests near the epicentre of the emerald ash borer invasion

Agricultural and Forest Entomology, EarlyView.
The persistence and health of ash populations were characterized in post‐outbreak forests near the epicentre of the emerald ash borer (EAB) invasion in North America. Regenerating ash remained abundant, but densities of understory ash were higher in wetlands (hydric), while ash remained at the seedling stage in riparian (mesic) and upland (xeric ...
Aaron Tayal, Kayla I. Perry
wiley   +1 more source

Exploiting Native Biodiversity for Invasive Species Management: The Case of Exorista larvarum as a Natural Enemy of the Invasive Box Tree Moth Cydalima perspectalis

Entomologia Experimentalis et Applicata, EarlyView.
The investigations evaluated the performance of the native parasitoid Exorista larvarum (L.) on last instar Cydalima perspectalis (Walker) larvae, using the factitious host Galleria mellonella (L.) as a control. Laboratory bioassays were conducted using no‐choice and choice (1:1 and 5:5) experimental designs.
Serena Gallizia, Santolo Francati, Maria Luisa Dindo, Chiara Ferracini   +3 more
wiley   +1 more source