Results 61 to 70 of about 15,380 (225)

Spectral response of guava leaves under infestation by Costalimaita ferruginea (coleoptera: Chrysomelidae)

Agricultural and Forest Entomology, EarlyView.
Coccinellidae (Coleoptera), Miridae (Hemiptera), Hemerobiidae (Neuroptera), Pentatomidae (Hemiptera), Anystidae (Acari), Erythraeidae (Acari) and spiders (Araneidae, Oxyopidae and Salticidae) fed on the invasive paropsine leaf beetles in Marlborough, New Zealand.
Souradji I. Bachirou, Pedro G. Peixoto, David L. Rosalen   +2 more
wiley   +1 more source

Molecular evidence for the association of a strain of Uganda variant of East African cassava mosaic virus to symptom severity in cassava (Manihot esculenta Crantz) fields in Togo [PDF]

, 2009
: Problem statement: This study was carried out to demonstrate that the severity of Cassava Mosaic Disease (CMD) in Togo, is not only influenced by synergism between cassava Begomoviruses in presence, but essentially by recombination between the ...
Adjata, K.D., Gumedzoe, M.Y.D., Muller, Emmanuelle, Peterschmitt, Michel, Traoré, Oumar   +4 more
core  

Foliar Nutrient Diagnosis of Urban Sugar and Red Maples in the Great Lakes Region [PDF]

Journal of Environmental Horticulture, 1985
Samples were collected from 293 urban Acer rubrum L. and Acer saccharum Marsh. in Michigan, Ohio, Illinois and Wisconsin. Foliar analysis indicated that healthy urban maples contained lower than expected levels of N and Mn; intermediate levels of Al, Cd, Cu, Fe, Mg and Zn; and high levels of B, Ca, K, Na and P. Guides to fertilization and diagnosis are
E. Thomas Smiley, James B. Hart, J. James Kielbaso   +2 more
openaire   +1 more source

Early evolutionary history of the seed

Biological Reviews, Volume 101, Issue 3, Page 1511-1553, June 2026.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

Avaliação do estado nutricional da soja Soybean nutritional status evaluation

Pesquisa Agropecuária Brasileira, 2006
O objetivo deste trabalho foi comparar os diagnósticos do estado nutricional de um conjunto de 111 lavouras comerciais de soja, pelos métodos: Sistema Integrado de Diagnose e Recomendação (DRIS) e Diagnose da Composição Nutricional (CND), com uso do ...
Eliane Oshiro Mocelin Urano, Carlos Hissao Kurihara, Shizuo Maeda, Antonio Carlos Tadeu Vitorino, Manoel Carlos Gonçalves, Marlene Estevão Marchetti   +5 more
doaj   +1 more source

Chemical control strategies for Poa annua in managed turfgrass systems

Crop, Forage &Turfgrass Management, Volume 12, Issue 1, June 2026.
Abstract Poa annua L. is a widespread and persistent weed in managed turfgrass systems, exhibiting both annual and short‐lived perennial growth habits. Effective management requires an integrated approach, with chemical herbicides remaining a primary tool.
James D. McCurdy, Rebecca G. Bowling, Aaron J. Patton, Edicarlos B. de Castro, James T. Brosnan, David E. Ervin, Shawn D. Askew, Clebson G. Gonçalves, Matthew T. Elmore, J. Scott McElroy, Brandon C. McNally, Benjamin D. Pritchard, John E. Kaminski, Travis W. Gannon, J. Bryan Unruh, Muthukumar V. Bagavathiannan   +15 more
wiley   +1 more source

Modelagem de funções no cálculo dos índices DRIS. [PDF]

, 2019
O objetivo deste trabalho foi modelar o fator k e as funções DRIS para a diagnose foliar de mangueirascultivadas. Dez pomares comerciais, no estágio de produção, localizados no vale do Rio São Francisco, forammonitorados, mensalmente, durante dois anos ...
MACHADO, P. L. O. de A., MAIA, C. E., PINTO, P. A. da C., SILVA, D. J., TOME JUNIOR, J. B., WADT, P. G. S.   +5 more
core   +4 more sources

Testing and validation of methods for the diagnosis and recomendation integrated system for Signal grass

Scientia Agricola, 2005
The Diagnosis and Recommendation Integrated System (DRIS) allows the interpretation of results of leaf analysis through relationships among nutrients, instead of the absolute and isolated concentration of each one, as it is used by the criterion of ...
Silveira Cristiane Prezotto, Nachtigall Gilmar Ribeiro, Monteiro Francisco Antonio   +2 more
doaj  

Testing and validation of methods for the diagnosis and recomendation integrated system for Signal grass Calibração do modelo e validação do sistema integrado de diagnose e recomendação para o capim - branquiária

Scientia Agricola, 2005
The Diagnosis and Recommendation Integrated System (DRIS) allows the interpretation of results of leaf analysis through relationships among nutrients, instead of the absolute and isolated concentration of each one, as it is used by the criterion of ...
Cristiane Prezotto Silveira, Gilmar Ribeiro Nachtigall, Francisco Antonio Monteiro   +2 more
doaj   +1 more source

Effect of adjuvants on the efficiency of benthiavalicarb plus mancozeb (Valbon 1.6 kg/ha) on the control of late blight in potato [PDF]

, 2009
Industrial adjuvants were tested in combination with benthiavalicarb plus mancozeb (Valbon 1.6 kg/ha) in the field to investigate their efficacy on foliar late blight caused by Phytophthora infestans.
De Schampheleire, Mieke, Dewitte, Kevin, Haesaert, Geert, Heremans, Betty, Pycke, Bart, Spanoghe, Pieter, Steurbaut, Walter   +6 more
core   +1 more source