Results 71 to 80 of about 166,030,954 (208)

Biomass flow and defoliation pattern in alexandergrass fertilized with nitrogen

Bioscience Journal, 2017
The determination of biomass flows can assist on improving pasture fertilization techniques, contributing to identify the best management methods and, in relation the use of fertilizers. Nitrogen deficiency in pastures can reduce forage production.
Anelise Pereira Hundertmarck, Marta Gomes da Rocha, Luciana Pötter, Paulo Roberto Salvador, Tuani Lopes Bergoli, Dambros de Moura, Pedro Arthur de Albuquerque Nunes, Maria José de Oliveira Sichonany   +7 more
doaj   +3 more sources

Extreme climatic events, biotic interactions and species-specific responses drive tree crown defoliation and mortality in Italian forests

iForest - Biogeosciences and Forestry
The frequency of forest disturbances has increased in recent years, provoking widespread defoliation, crown dieback and tree mortality. The ICP Forests monitoring network offers a unique platform for observing the impacts on forests of heatwaves ...
Bussotti F, Papitto G, Di Martino D, Cocciufa C, Cindolo C, Cenni E, Bettini D, Iacopetti G, Ghelardini L, Moricca S, Panzavolta T, Bracalini M, Pollastrini M   +12 more
doaj   +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

Rearing Istocheta aldrichi (Diptera: Tachinidae) From Field‐Collected Japanese Beetles (Popillia japonica): 1. Methods to Improve Insect Collection and Parasitoid Pupariation

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, Josée Doyon, Paul K. Abram, Jacques Brodeur   +3 more
wiley   +1 more source

Herbage utilisation efficiency of continuously stocked marandu palisade grass subjected to nitrogen fertilisation

Scientia Agricola, 2015
Nitrogen fertiliser accelerates plant growth and increases herbage utilisation efficiency in continuously stocked temperate grass swards, indicating greater herbage production and harvest efficiency.
Lilian Elgalise Techio Pereira, Adenilson José Paiva, Vitor Del’Álamo Guarda, Priscila de Mesquita Pereira, Fábio Olegário Caminha, Sila Carneiro da Silva   +5 more
doaj   +1 more source

Foliar pests and pathogens of Eucalyptus dunnii plantations in southern Queensland [PDF]

, 2011
Eucalyptus dunnii is grown in plantations in subtropical Queensland, beyond its endemic distribution of northern NSW. As the plantation industry has expanded into subtropical Australia there has been an increase in the incidence of defoliating insects ...
Howard, K., Whyte, G., Hardy, G.E.St.J., Burgess, T.I.   +3 more
core  

Generation Rather Than Sex Shapes Wing Morphology in Cydalima perspectalis (Lepidoptera, Crambidae): Insights From Geometric Morphometrics and Climate‐Based Projections

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, Cantekin Dursun, Serkan Gül   +2 more
wiley   +1 more source

Defoliation patterns on a mixture pasture of forage sorghum and Alexandergrass

Semina: Ciências Agrárias
Detailing the morphogenic characteristics of tropical species that form mixed pastures allows a broader view of plant-animal interactions. The objective of this study was to evaluate the intensity and frequency of defoliation in a mixed pasture of ...
Dinah Pereira Abbott Rodrigues, Juliana Medianeira Machado, Bruna Fernandes Machado, Iohan Souza da Silva, Fernando Forster Furquim , Amanda Carneiro Martini , Camille Carijo Domingues, Marta Gomes da Rocha, Julia Pinto de Souza, Luciana Pötter   +9 more
doaj   +1 more source

Life‐History Traits and Overwintering of Actia interrupta (Diptera: Tachinidae), a Larval Parasitoid of Choristoneura fumiferana (Lepidoptera: Tortricidae)

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, Jacques Régnière, Jean‐Claude Thireau, Rob C. Johns   +3 more
wiley   +1 more source

Seasonal dynamics and defoliation impact on herbage yield in aspen boreal habitats of Alberta

, 2003
Within the aspen boreal ecosystems, little information exists on the seasonal dynamics of available herbage and the effects of varying defoliation regimes on accumulated herbage growth and associated opportunities for animal production.
Okello, Moses M., Donkor, Noble T., Bork, Edward W., Hudson, Robert J.   +3 more
core   +1 more source