Monitoring the defoliation of hardwood forests in Pennsylvania using LANDSAT [PDF]
An automated system for conducting annual gypsy moth defoliation surveys using LANDSAT MSS data and digital processing techniques is described. A two-step preprocessing procedure was developed that uses multitemporal data sets representing forest canopy ...
Dottavio, C. L. +2 more
core +1 more source
Some aspects of the competition between seedlings of gorse (Ulex europaeus L.) and "Grasslands Nui" perennial ryegrass (Lolium perenne L.) : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science at Massey University [PDF]
, 1978 Two glasshouse trials were conducted with "Grasslands Nui" perennial ryegrass (Lolium perenne L.) and gorse (Ulex europaeus L.) grown in boxes separately as monocultures and as mixtures forming a replacement series.
Mlowe, Focas Kazingoma Mwatika
core
Susceptibility of White Spruce Seed Sources to Yellowheaded Spruce Sawfly, \u3ci\u3ePikonema Alaskensis,\u3c/i\u3e(Hymenoptera: Tenthredinidae) [PDF]
, 2017 A field caging technique was used to test the susceptibility of 25 white spruce, Picea glauca (Moench) Voss, seed sources to attack by Pikonema alaskensis (Rohwer).
Connor, Michael D +2 more
core +2 more sources
Fly me to the canopy: Diptera communities in oak forest crowns as bioindicators of stand decline
Insect Conservation and Diversity, EarlyView.Diptera diversity: Oak decline increases the overall Diptera diversity, particularly in saproxylic and floricolous guilds, likely due to more open canopies and greater deadwood and floral resource availability. Family responses: Dolichopodidae, Empididae, Hybotidae and Anthomyiidae thrive in declining stands, whereas Mycetophilidae and other fungus ...
Anastasia Paupe +32 more
wiley +1 more source
Identification of Cotton Defoliation Sensitive Materials Based on UAV Multispectral Imaging
Agriculture(1) Background: This study aims to analyze the defoliation and boll opening performance of 123 upland cotton germplasm resources after spraying defoliant, using multispectral data to select relevant vegetation indices and identify germplasm resources ...
Yuantao Guo +8 more
doaj +1 more source
Nitrogen side-dress as a strategy to reduce defoliation demages at different growth stages of maize
Semina: Ciências Agrárias, 2014 Nitrogen can mitigate damages caused by leaf area reduction due to its influence on cell division. This work was carried out aiming to evaluate the efficiency of side-dressing different rates of nitrogen as a management strategy to maize stem defoliation
Luis Sangoi +7 more
doaj +1 more source
Mathematical modelling of diurnal regulation of carbohydrate allocation by osmo-related processes in plants [PDF]
, 2015 Copyright & Usage © 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are ...
Ebenhöh, Oliver, Pokhilko, Alexandra
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Hairy Roadblock: Stem Trichomes Impede Herbivore Movement in a Species and Instar‐Dependent Manner
Journal of Applied Entomology, EarlyView.ABSTRACT Plants have evolved to deploy a vast set of defence mechanisms against insect herbivores, including physical barriers like leaf trichomes with pre and post ingestive effects. Yet, the role of stem trichomes in plant‐herbivore interactions, particularly mobility dynamics, is poorly understood.
Manish Gautam, Rupesh Kariyat
wiley +1 more source
\u3ci\u3eChrysochus Auratus\u3c/i\u3e (Coleoptera: Chrysomelidae) Absolved as Pecan Pest [PDF]
, 2017 Chrysochus auratus, the dogbane beetle, has been erroneously implicated as a pecan defoliator in the early literature.
Williams, Charles E
core +2 more sources
Journal of Applied Entomology, EarlyView.ABSTRACT Rachiplusia nu, known as the sunflower looper (SFL) and belonging to the Plusiinae subfamily, is a major defoliator of soybeans, sunflowers and other horticultural crops across southern South America. This species has recently expanded to central and northern regions of Brazil, becoming a key soybean pest.
Leonardo Figueiredo +5 more
wiley +1 more source