Results 41 to 50 of about 792,268 (149)

Integrated control of pear psylla Cacopsylla chinensis and pear decline

open access: yes, 2011
危害梨樹上的木蝨統稱為梨木蝨,台灣已知有兩種梨木蝨,包括 1994 年發現的黔梨木蝨 Cacopsylla qianli (Yang and Li) 及 2002 年發現的中國梨木蝨 Cacopsylla chinensis (Yang and Li)。前者田間密度低,現已甚少發現,後者為目前台灣梨園主要害蟲。其危害方式除成蟲與若蟲直接以刺吸式口器吸食梨樹汁液外,尚會分泌蜜露誘發煤煙病。更甚者,中國梨木蝨更已經由傳病試驗確認會傳播梨衰弱病 (pear decline, PD),引起梨樹萎凋、捲葉 ...
張淑貞   +3 more
core  

Epidemiology of pear decline in orchards without vector control in Southwest Germany

open access: yes, 2023
In the past decade, pear decline is spreading in Southwest Germany due to climate change and reduced insect vector control. Monitoring of nine old pear orchards revealed infection rates between 40% and 80%.
Alexander, Stefanie   +4 more
core   +1 more source

Morphological and Anatomical Investigations on in Vitro Micrografts of OHxF 333 / Pyrus elaeagrifolia Interstock / Rootstock Combination in Pears

open access: yesJournal of Agricultural Sciences, 2014
In this study, possibility of creating a specific interstock / rootstock combination to obtain a clonal, semi dwarf, composite pear rootstock tolerant to various stresses by micrografting was investigated. In vitro shoots of ‘Old Home x Farmingdale 333’ (
Aysun Çelik   +3 more
doaj   +1 more source

Phytopythium vexans Associated with Apple and Pear Decline in the Saïss Plain of Morocco. [PDF]

open access: yesMicroorganisms, 2021
Jabiri S   +6 more
europepmc   +1 more source

Draft Genome Sequence of ‘Candidatus Phytoplasma pyri’ Strain P1, the Causal Agent of Pear Decline Disease

open access: yesPhytoFrontiers
This study reports the draft genome of ‘Candidatus Phytoplasma pyri’ strain P1, isolated from Argentina. The genome assembly consisted of 17 contigs, with a total length of 575,431 bp, a GC content of 20.35%, and 125× coverage.
Florencia Ivette Alessio   +5 more
doaj   +1 more source

Diagnoses of pear decline and rootstock identification in young pear orchards

open access: yesCalifornia Agriculture, 1967
Pear decline has occurred predominantly with rootstocks of two oriental species, Pyrus serotina and P. ussuriensis, although there have been reports of tree losses with P. communis rootstocks.
P Catlin, A Millecan
doaj  

Survival of Generic Escherichia coli on Bulk and Wrapped d’Anjou Pears under Extended Storage Durations

open access: yesJournal of Food Protection
Due to past outbreaks and recalls linked to tree fruit, more targeted food safety risk mitigation measures are needed in the pear industry. However, there is limited research on food safety risks that are specific to pear packing operations.
Cyril A. Etaka   +3 more
doaj   +1 more source

Effect of Preharvest Aminoethoxyvinylglycine Treatment on Fruit Quality and Core Browning in ‘Huangguan’ Pear after Long-Term Cold Storage [PDF]

open access: yesShipin Kexue
In order to prolong the storage period of ‘Huangguan’ pear and reduce the deterioration of fruit quality during long-term storage and subsequent shelf life, this study conducted preharvest treatment with different concentrations of ...
HE Jingang, FENG Yunxiao, CHENG Yudou, GUAN Junfeng
doaj   +1 more source

Retelling of The Pear Story: Rengshing

open access: yes, 2017
Recording of Rengshing Dilbung and William Shilshi's version of The Pear Story, recorded at ...
Lorenzen, Jane
core   +1 more source

Old home pear trees show resistance to decline when on own roots

open access: yesCalifornia Agriculture, 1960
Pear tree decline has become one of the greatest problems of the California pear industry. Symptoms of the disorder include small, sparse, light green leaves, little or no shoot growth, early cessation of fruit growth, wilting, scorching, and death of ...
W Griggs, H Hartmann
doaj  

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