Results 41 to 50 of about 3,470 (264)
Mathematical Biosciences and Engineering, 2007 We consider the mathematical model originally created by Ludwig, Jones, and Holling to model the infestation of spruce forests in New Brunswick by the spruce budworm. With biologically plausible parameter values, the dimensionless version of the model contains small parameters derived from the time scales of the state variables and smaller parameters ...
openaire +3 more sources
, 1980 For cooperation and assistance in the work reported here, we gratefully acknowledge Dr. William Burgoyne, State of Alaska Division of Environmental Conservation and Mr. Delon Brown, USDA, Alaska Crop and Livestock Reporting Service.
Bleicher, David P. +2 more
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PLANTS, PEOPLE, PLANET, EarlyView.Many plant species worldwide are struggling to regenerate due to the ongoing effects of climate change. These effects appear to be further exacerbated by the loss of keystone megafauna, which were important seed dispersers. By identifying the traits commonly seen in seeds spread by modern elephants, it is possible to predict which species likely ...
Andrew J. Tighe
wiley +1 more source
Pest Management Science, EarlyView.Increasing canola plant density reduced flea beetle abundance per plant and increased yield, independent of region or insecticide use, highlighting its potential as a component of integrated pest management. Abstract The crucifer flea beetle, Phyllotreta cruciferae (Goeze), and the striped flea beetle, Phyllotreta striolata (Fabricius) (Coleoptera ...
Shayla Woodland +7 more
wiley +1 more source
The Influence of Formulation, Buffering, pH and Divalent Cations on the Activity of Endothall on Hydrilla. [PDF]
, 2003 Endothall has been used as an aquatic herbicide for more than 40 years and provides very effective weed control of many weeds. Early research regarding the mechanism-of-action of endothall contradicts the symptomology normally associated with the ...
Bewick, T. A. +4 more
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Pentachlorophenol and spent engine oil degradation by Mucor ramosissimus [PDF]
, 2008 Pentachlorophenol (PCP) has been widely used for many years and belongs to the most toxic pollutants. Spent engine oils enter environment every day in many ways. Both of them cause great environmental concern.
Długoński, Jerzy, Szewczyk, Rafał
core +1 more source
Fungal disease management in cotton using plant protection products: An Australian perspective
Pest Management Science, EarlyView.Cotton disease management requires evidence‐driven use of plant protection products. Progress hinges on integrating chemistry, diagnostics, stewardship and sustainability to build resilient production systems. Abstract Cotton production faces persistent challenges from pathogens that compromise plant establishment, yield, and fibre quality.
Noel L Knight +3 more
wiley +1 more source
Causal Factors, Causal Inference, Causal Explanation [PDF]
, 1986 There are two concepts of causes, property causation and token causation. The principle I want to discuss describes an epistemological connection between the two concepts, which I call the Connecting Principle.
Papineau, David, Sober, Elliott
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Pest Management Science, EarlyView.RNA interference (RNAi) technologies, host‐induced gene silencing (HIGS) and spray‐induced gene silencing (SIGS), potentially offer sustainable crop protection. However, efficacy, costs, regulatory clarity, and socio‐environmental impacts require further evaluation for broader use.
Elisabetta Sergi +12 more
wiley +1 more source
AgriEngineeringThe optimization of cotton defoliant application is critical for enhancing fiber quality and yield. This study aims to assess the impact of different defoliant duty cycles on cotton fiber quality by applying Principal Component Analysis (PCA) to High ...
Joe Mari Maja +8 more
doaj +1 more source