Results 91 to 100 of about 1,292,238 (202)

Fruit quality and occurrence of mildew in Niagara Rosada grown under plastic cover and defoliation rates

Revista Ceres
The purpose of this study was to evaluate the agronomic behavior of the Niagara Rosada variety cultivated under plastic cover, using defoliation intensities, and its influence on the Plasmopara viticola. The experiment was conducted in Francisco Beltrão,
Solivan Rosanelli, Fabíola Villa, Daniel Fernandes da Silva, Maria Cristina Copello Rotili, Tatiane Eberling   +4 more
doaj   +1 more source

The Bionomics of the Teak Skeletoniser, Paliga Damastesalis Walker (Lepidoptera: Crambidae) and its Defoliation Impact on Young Teak, Tectona Grandis Linnaeus [PDF]

, 2004
The distribution and feeding behaviour of a teak skeletoniser, Paliga damastesalis Walker, and the impact of its defoliation on the growth of young teak was investigated in a series of laboratory and field studies in Malaysia.
Grace, Tabitha Lim Wui Oi
core  

Application of ERTS-1 imagery and underflight photography in the detection and monitoring of forest insect infections in the Sierra Nevada Mountains of California [PDF]

The author has identified the following significant results. Analysis of ERTS-1 imagery with underflight aerial photo support including U-2, in the Sierra Nevada Mountains of California, indicates promising possibilities of detecting and monitoring ...
Hall, R. C., Koerber, T. W., Wert, S. L.
core   +1 more source

Yield losses caused by late blight (Phytophthora infestans (Mont.) de Bary) in potato crops in Ireland [PDF]

, 2008
peer-reviewedField experiments, using foliage blight susceptible cultivars, were conducted at Oak Park, Carlow from 1983 to 2007 to determine the loss in potato production caused by crop infection with Phytophthora infestans.
Dowley, L.J., Grant, Jim, Griffin, Denis
core  

Field Evaluations of Two Citrus Interspecific Hybrid Populations Using Desert Lime (Citrus glauca (Lindl.) Burkill) Identify Presumed Resistance and Tolerance to Huanglongbing

Agronomy
Huanglongbing (HLB), associated with the bacterial pathogen Candidatus Liberibacter asiaticus (CLas), is one of the most destructive diseases affecting citrus.
Maria B. Besilla-Renteria, Vicente J. Febres, Jose X. Chaparro   +2 more
doaj   +1 more source

Ecosystem carbon 7 dioxide fluxes after disturbance in forests of North America [PDF]

, 2010
Disturbances are important for renewal of North American forests. Here we summarize more than 180 site years of eddy covariance measurements of carbon dioxide flux made at forest chronosequences in North America. The disturbances included stand-replacing
Amiro, Brian D., Barr, Alan G., Barr, Alan G., Black, T. A., Bracho, R., Brown, M., Chen, J., Clark, K. L., Davis, K. J., Desai, A. R., Dore, S., Engel, V., Fuentes, J. D., Goldstein, A. H., Goulden, M. L., Kolb, T. E., Lavigne, M. B., Law, B. E., Margolis, H. A., Xiao, Jingfeng   +19 more
core   +1 more source

Comparative Performance of Biorational and Chemical Products for the Management of Bacterial Blight on Lilac

HortScience
Bacterial blight caused by Pseudomonas syringae pv. syringae is a common disease of lilac (Syringa reticulata L.). This bacterium spreads plant to plant via insect vectors, wind, rain, and contaminated tools; hence, managing this disease is challenging ...
Cansu Oksel, Christina Jennings, Prabha Liyanapathirenage, Madhav Parajuli, Kumuditha D. Hikkaduwa Epa Liyanage, Terri Simmons, Fulya Baysal-Gurel   +6 more
doaj   +1 more source

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., Nelson, R. F., Williams, D. L.   +2 more
core   +1 more source

Leaf, tree and soil properties in a Eucalyptus saligna forest exhibiting canopy decline [PDF]

, 2013
The extent of eucalypt decline in moist coastal forests of south-eastern Australia is increasing with resultant losses in biodiversity and productivity. This survey aimed to identify factors associated with the decline of Eucalyptus saligna (Sydney Blue ...
Simpson, Jack A., Stone, Christine
core  

The feasibility of detecting trees affected by the pine wood nematode using remote sensing [PDF]

, 2015
Institute for Environment and Sustainability (Joint Research Centre)
core   +1 more source