Results 81 to 90 of about 1,658,283 (295)
FOREST PEST OCCURRENCE PREDICTIONCA-MARKOV MODEL [PDF]
, 2009 Since the spatial pattern of forest pest occurrence is determined by biological characteristics and habitat conditions, this paper introduced construction of a cellular automaton model combined with Markov model to predicate the forest pest occurrence. Rules of the model includes the cell states rules, neighborhood rules and transition rules which are ...
Fangyi Xie +2 more
openaire +2 more sources
History of white pine blister rust control : a personal account /
, 1981 "March 1981.""Division of Forest Pest Control, Forest Service.""FS-355"Mode of access ...
United States. Forest Service +2 more
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The role of venture‐financed startups in innovation for US agriculture
American Journal of Agricultural Economics, EarlyView.Abstract To evaluate the role played by startup companies in the innovation ecosystem of US agriculture, we compile a unique dataset of 6024 new entrants founded 1987–2019 that details their financing lifecycles, annual economic performance, and patenting activities.
Gregory D. Graff +2 more
wiley +1 more source
Early Detection of Dendroctonus valens Infestation with UAV-Based Thermal and Hyperspectral Images
Remote SensingDendroctonus valens is one of the main invasive pests in China, causing serious economic and ecological damage. Early detection and control of D. valens can help prevent further outbreaks.
Peiyun Bi +6 more
doaj +1 more source
Comparison of modeled and measured deposition for the Withlacoochee spray trials /
, 1981 "TR-81-319-01.""February 1981.""June 1981.""H.E. Cramer Company, Inc.""Final report under contract no. 53-91S8-9-6260 with USDA Forest Service, Forest Pest Management, Methods Application Group."Bibliography: p.
Rafferty, J. E. +2 more
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Pest Management & Crop Development [PDF]
, 2004 The Bulletin provides timely information about pests and crops throughout Illinois. Our objective is to keep you informed about pest problems and crop development issues and to keep you current regarding the most effective, economic, and environmentally ...
Integrated Pest Management +2 more
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Invasive forest pest distributions and their impacts on forest biomass [version 1.0]
, 2019 Three sets of data are included in this publication: forest inventory data, pest distribution data, and host tree list by pest.
Andrew Liebhold +3 more
core +1 more source
RANDOM FOREST AND OBJECTED-BASED CLASSIFICATION FOR FOREST PEST EXTRACTION FROM UAV AERIAL IMAGERY [PDF]
, 2016 Forest pest is one of the most important factors affecting the health of forest. However, since it is difficult to figure out the pest areas and to predict the spreading ways just to partially control and exterminate it has not effective enough so far ...
Y. Yuan, X. Hu
core +1 more source
High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State
American Journal of Botany, EarlyView.Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording +4 more
wiley +1 more source
American Journal of Botany, EarlyView.Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd +5 more
wiley +1 more source