Results 31 to 40 of about 36,944 (324)

Quantifying pine processionary moth defoliation in a pine-oak mixed forest using unmanned aerial systems and multispectral imagery

open access: yesPLoS ONE, 2019
Pine processionary moth (PPM) feeds on conifer foliage and periodically result in outbreaks leading to large scale defoliation, causing decreased tree growth, vitality and tree reproduction capacity.
A. Cardil   +4 more
semanticscholar   +1 more source

Simulated impacts of insect defoliation on forest carbon dynamics

open access: yesEnvironmental Research Letters, 2012
Many temperate and boreal forests are subject to insect epidemics. In the eastern US, over 41 million meters squared of tree basal area are thought to be at risk of gypsy moth defoliation. However, the decadal-to-century scale implications of defoliation
D Medvigy   +3 more
doaj   +1 more source

Effects of Defoliation on Phenolic Concentrations, Antioxidant and Antibacterial Activity of Grape Skin Extracts of the Varieties Blaufränkisch and Merlot (Vitis vinifera L.)

open access: yesMolecules, 2019
Vitis vinifera L. has been highlighted by its many positive effects on human health, including antibacterial, anti-inflammatory and antioxidant activity due to its rich phytochemical content. Removing six basal leaves has great potential to influence the
Valentina Pavić   +6 more
doaj   +1 more source

Defoliation Dynamics in Kikuyugrass Pastures Subjected to Intensities of Defoliation

open access: yesAgronomy, 2020
Some recent papers have recommended moderate intensities of defoliation in order to maximize herbage intake at different time-scales. Most of them, however, did not assess the grazing dynamics of individual tillers during the stocking period.
Cauby Medeiros-Neto   +4 more
doaj   +1 more source

A Self-Calibrated Non-Parametric Time Series Analysis Approach for Assessing Insect Defoliation of Broad-Leaved Deciduous Nothofagus pumilio Forests

open access: yesRemote Sensing, 2019
Folivorous insects cause some of the most ecologically and economically important disturbances in forests worldwide. For this reason, several approaches have been developed to exploit the temporal richness of available satellite time series data to ...
R. Chávez   +4 more
semanticscholar   +1 more source

Defoliants and Desiccants

open access: yesEDIS, 2021
This document discusses the meaning of the terms “defoliant” and “desiccant,” their uses, and factors that impact their performance, and also provides a list of registered products for use in Florida. Written by Joseph E. Iboyi, Michael J. Mulvaney, Mahesh Bashyal, Pratap Devkota, and David L.
Joseph E. Iboyi   +4 more
openaire   +5 more sources

An Experimental Comparison of Two Methods on Photosynthesis Driving Soil Respiration: Girdling and Defoliation.

open access: yesPLoS ONE, 2015
Previous studies with different experimental methods have demonstrated that photosynthesis significantly influences soil respiration (RS). To compare the experimental results of different methods, RS after girdling and defoliation was measured in five ...
Yanli Jing   +5 more
doaj   +1 more source

Effects of time and intensity of defoliation on yield and yield components of corn

open access: yesپژوهشهای زراعی ایران, 2009
In order to evaluate the effects of time (20, 40, 60 and 100 days after sowing) and intensity of defoliation (0, 33, 66 and 100%) on a corn cultivar ( three way cross 647), a complete randomized block design with split plot arrangement and three ...
parisa mahmoodi   +3 more
doaj   +1 more source

Herbage accumulation, morphological composition, and nutritive value of Paspalum notatum CV. INIA Sepé

open access: yesAgrociencia Uruguay, 2021
Defoliation strategies determine sward canopy structure and affect forage accumulation and nutritive value. The objective of this study was to determine forage accumulation, morphological composition and nutritive value of inia Sepé subjected to ...
Diego Germán Giorello   +2 more
doaj   +1 more source

Boreal tree growth exhibits decadal‐scale ecological memory to drought and insect defoliation, but no negative response to their interaction

open access: yesJournal of Ecology, 2018
Interactions between drought and insect defoliation may dramatically alter forest function under novel climate and disturbance regimes, but remain poorly understood.
M. Itter   +5 more
semanticscholar   +1 more source

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