Results 61 to 70 of about 2,934,595 (206)

Effect of different mulching and cutting regimes on the vegetation of upland meadow

Plant, Soil and Environment, 2004
The effect of different cutting and mulching regimes on the structure of the sward and plant species diversity of semi-natural meadow (Arrhenatherion alliance) was investigated in manipulative experiment over five years. Mulching once a year in September
J. Gaisler, M. Hejcman, V. Pavlů
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

Características estruturais de milheto sob pastejo rotativo com diferentes períodos de descanso Structural characteristics of pearl millet under rotational grazing with different rest periods

Revista Brasileira de Zootecnia, 2009
Com o objetivo de determinar o período de descanso (PD) ideal para a pastagem de milheto (Pennisetum glaucum (L.) R.Br.), realizou-se um experimento em delineamento completamente ao acaso, com três períodos de descanso (tempos necessários para expansão ...
Carlos Eduardo da Silva Pedroso, Pedro Lima Monks, Otoniel Geter Lauz Ferreira, Otávio Matos Tavares, Lasier Silveira Lima   +4 more
doaj   +1 more source

Long-term monitoring and microbiological control programs against lepidopteran defoliators in Sardinian cork oak forests (Italy)

Annals of Silvicultural Research, 2020
The gypsy moth, Lymantria dispar (L.), and the tent caterpillar, Malacosoma neustrium (L.), are the main cork oak, Quercus suber L., pests in the Mediterranean area and cause complete defoliation in large forest districts.
Andrea Lentini, Roberto Mannu, Arturo Cocco, Pino Angelo Ruio, Anna Carboneschi, Pietro Luciano   +5 more
doaj   +1 more source

Características morfogênicas de milheto sob lotação rotacionada com diferentes períodos de descanso Morphogenetic characteristics of pearl millet under rotational grazing with different rest periods

Revista Brasileira de Zootecnia, 2009
O experimento foi realizado para avaliar as características morfogênicas de milheto (Pennisetum glaucum (L.) R.Br.) sob lotação rotacionada com três períodos de descanso, correspondentes aos tempo necessário para expansão de 1,5 a 2 folhas; de 2,5 a 3 ...
Carlos Eduardo da Silva Pedroso, Pedro Lima Monks, Otoniel Geter Lauz Ferreira, Lasier Silveira Lima, Otavio Matos Tavares   +4 more
doaj   +1 more source

How Long Before a Second Defoliation of Actively Growing Grass Plants in the Desert Grassland?

Frontiers in Veterinary Science, 2020
In the Desert Grassland, second and subsequent defoliations on perennial grasses during the active growing season can have substantial impacts on grass recovery and reproduction following herbivory.
Sarah Noelle, Timothy Lyons, Alessandra Gorlier, Mitchel P. McClaran, Mary Nichols, George Ruyle   +5 more
doaj   +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

Does defoliation frequency and severity influence plant productivity? The role of grazing management and soil nutrients

, 2021
Rangeland management approaches, including rotational grazing, rely on assumptions about plant growth responses to the intensity, or severity (sward height) plus frequency, of defoliation.
Cramer, Michael D., Vente, Zander S., Hawkins, Heidi-Jayne   +2 more
core  

Tiller hierarchy and defoliation frequency determine bud viabilityn in the grass Poa ligularis [PDF]

, 2011
Bud viability after various defoliation frequency treatments was determined in the perennial bunchgrass Poa ligularis under arid field conditions from 2002 to 2005.
L. Ghermandi, Becker, Guillermo Fernando, Busso, Carlos Alberto, C. A. Busso, Ghermandi, Luciana, Becker, G. F., Gittins López, Cecilia Gabriela, G. F. Becker, C. Gittins   +8 more
core   +1 more source

The Importance of the Larval Parasitoid Actia interrupta (Diptera: Tachinidae) in Low Density Eastern Spruce Budworm Populations

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, Jacques Régnière, Jean‐Claude Thireau   +2 more
wiley   +1 more source