Results 61 to 70 of about 1,677 (169)
Monitoring methods and spatial patterns of European canker disease in commercial orchards
New Zealand Plant Protection, 2016 European canker (Neonectria ditissima) kills trees and decreases production in apple orchards To determine a level of disease control or the extent of its spread in commercial orchards efficient monitoring methods are required In this study we investigated two monitoring methods sampling a single row and systematic sampling of an orchard block The ...
R.E. Campbell +3 more
openaire +2 more sources
South-East European Forestry, 2012 The performance of European beech (Fagus sylvatica L.) is severely threatened by abiotic and biotic stresses, but the resilience of its provenances from distinct geographic areas has not been sufficiently studied.
Nevenka Ćelepirović +8 more
doaj
An endopolygalacturonase gene of Diaporthe helianthi
Phytopathologia Mediterranea, 2012 In an attempt to define virulence determinants of Diaporthe helianthi, the causative agent of sunflower stem canker, the gene named Dhpg, coding for an endopolygalacturonase, was investigated in the highly virulent strain 8/96 isolated from a diseased ...
Valentina CATALANO +4 more
doaj +1 more source
Dry Bean Cocoa Production in Papua New Guinea: Do IPDM Inputs Pay Off?
Asia &the Pacific Policy Studies, Volume 13, Issue 2, May 2026.ABSTRACT Cocoa is Papua New Guineaʼs (PNG) third‐largest agricultural export, supporting about two million smallholder farmers. Despite integrated pest and disease management (IPDM) systems to improve yields, adoption remains low. We surveyed two cocoa‐growing households—one near Balima (Madang Province) and the other near Manetai (Bougainville)—and ...
Tom Swan +4 more
wiley +1 more source
Comparing methods to determine European canker resistance in apple tree accessions
New Zealand Plant Protection, 2010 Pruning cuts made in summer and pruning cuts leaf scars and score wounds made in autumn were inoculated to compare their suitability to discriminate for European canker resistance among apple accessions When pruning cuts were inoculated in summer the mean lesion size varied between accessions with Royal Gala displaying significantly larger lesions than
R.W.A. Scheper, B.M. Fisher
openaire +2 more sources
Journal für Kulturpflanzen, 2012 Bacterial canker caused by Clavibacter michiganensis ssp. michiganensis is one of the most serious tomato diseases, inducing substantial economic losses worldwide.
Ljubica Petrina, Gerhard Bedlan
doaj +1 more source
Methods in Ecology and Evolution, Volume 17, Issue 5, Page 1519-1534, May 2026.Abstract Optimal allocation of resources to the management of biosecurity risk, threatened species conservation or natural hazards such as bushfires is imperative—because program budgets are usually finite and, therefore, constrained. However, effectively dividing resources among management activities to achieve the greatest benefit remains a ...
Aaron Dodd, Edith Arndt, Anca Hanea
wiley +1 more source
The effect of nitrogen source on in vitro growth of Neonectria ditissima (European canker)
New Zealand Plant Protection, 2018 Nitrogen fertilisers are widely used in apple orchards. However, the effects of various nitrogen sources on growth and sporulation of the fungus Neonectria ditissima, which causes European canker, are not fully understood. The effects of various nitrogen sources commonly used in apple orchards (potassium nitrate, ammonium chloride, ammonium nitrate ...
Rebecca E. Campbell +3 more
openaire +2 more sources
PLoS ONE, 2010 A recently emerging bleeding canker disease, caused by Pseudomonas syringae pathovar aesculi (Pae), is threatening European horse chestnut in northwest Europe. Very little is known about the origin and biology of this new disease.
Sarah Green +13 more
doaj +1 more source
Global Change Biology, Volume 32, Issue 5, May 2026.We sequenced fungal DNA in barren soils sampled from 12 sites along a 1900‐km transect through sub‐ and Maritime Antarctica and Patagonia. Using LASSO regression, we found air temperature ‐ and notably mean annual air temperature (BIO1) ‐ to be a highly significant predictor for the richness and relative abundance of soilborne plant pathogens.
Kevin K. Newsham +11 more
wiley +1 more source