搜索结果: 1-15 共查到“植物保护学 citrus”相关记录19条 . 查询时间(0.093 秒)
New technique has potential to protect fruit from citrus greening（图）
New technique potential protect fruit citrus greening
2020/3/27
Citrus greening, also called Huanglongbing, is devastating the citrus industry. Florida alone has experienced a 50% to 75% reduction in citrus production. There are no resistant varieties of citrus pl...
Molecular variability of Citrus exocortis viroid in a single naturally infected citrus tree
nucleotide sequence CEVd genome quasi-species
2015/1/30
We report the nucleotide sequence of Citrus exocortis viroid (CEVd) from a single natural infected citrus tree of the clementinier variety (Citrus clementina) in Tunisia. The sequence variability of t...
Citrus flatid planthopper – Metcalfa pruinosa (Hemiptera: Flatidae), a new pest of ornamental horticulture in the Czech Republic
citrus flatid planthopper Metcalfa pruinosa ornamental horticulture first record Czech Republic
2015/1/28
In late August of 2001 a population of Metcalfa pruinosa (Say, 1830) consisting of several dozens of adults and larvae was observed in a nursery of ornamentals at Brno-Bystrc. The species occurred mos...
First report of Pseudocercospora angolensis causing leaf and fruit spot of Citrus in Sierra Leone
Phaeoramularia angolensis Cercospora angolensis cercosporiose
2014/11/25
In 2006, citrus fruit and leaves affected by dark brown lesions were noticed in orchards around Makeni in central Sierra Leone . The problem was considered widespread in the area by officers of the lo...
Fomitopsis sp. causing brown rot in wood of living citrus trees reported for first time in southern Italy
wood rot, Citrus sinensis Citrus limon Citrus aurantium
2014/11/25
In the spring of 2008 a brown wood rot in 40-year-old orange trees (Citrus sinensis cv. Valencia late) was observed in an orchard in the province of Taranto , Apulia region, Southern Italy . Affected ...
Evaluation of the control of citrus nematode (Tylenchulus semipenetrans) by leaf extracts of many plants and their effects on plant growth
Citrus nematode plants extract citrus nematode control
2011/1/12
The citrus nematode is an important nematode that is distributed in citrus gardens worldwide and causes decline and growth reduction of citrus plants. A control way of this nematode is chemical contro...
Distribution of Two Distinct Genotypes of Citrus Greening Organism in the Ryukyu Islands of Japan
citrus greening disease Diaphorina citri duplex PCR Huanglongbing
2010/10/25
The Asian type “Candidatus Liberibacter asiaticus” (Las, citrus greening organism) is severely damaging citrus production in Asia including Japan. Our previous study suggested that the bacteriophagety...
Bronson Announces Arrests For Citrus Quarantine Violations
Bronson Arrests Citrus Quarantine Violations
2010/1/13
Florida Agriculture and Consumer Services Commissioner Charles H. Bronson today announced the arrest of the husband and wife owners of a Central Florida nursery and the couple’s son for allegedly viol...
Georgia has been put under a federal quarantine to help prevent the spread of a devastating citrus disease.The quarantine follows the discovery in Georgia of “citrus greening” (CG), a disease that cau...
Effect of Biofertilizers and Humic Acid on control of Dry Root Rot Disease and Improvement Yield Quality of Mandarin (Citrus reticulate Blanco)
citrus dry root rot humic acid biofertilizers
2010/11/12
The effect of soil drenching with humic acid and commercial biofertilizers i.e., phosphorien ,
microbien and/or cearalien were evaluated for controlling dry root rot disease of mandarin ,fruit qualit...
The effect of mancozeb wp (wettable powder) on mancozeb adhesion and melanose control after application on wet citrus trees.
Citrus Diaporthe citri mancozeb wettable powder wet citrus tree melanose control
2009/3/16
Mancozeb wp was sprayed on wet citrus trees to examine the effect on mancozeb adhesion and melanose control. In the first trial, mancozeb wp was sprayed on wet fruits, and the amount of mancozeb adh...
The effect of mancozeb wp (wettable powder) on mancozeb adhesion and melanose control after application on wet citrus trees
Citrus Diaporthe citri mancozeb wettable powder wet citrus tree melanose control
2009/3/17
Mancozeb wp was sprayed on wet citrus trees to examine the effect on mancozeb adhesion and melanose control. In the first trial, mancozeb wp was sprayed on wet fruits, and the amount of mancozeb adhes...
Highly reliable polymerase chain reaction assay for citrus huanglongbing（citrus greening disease）using the sucrose synthase gene as an internal control
citrus huanglongbing PCR assay internal control sucrose synthase gene
2009/3/16
The polymerase chain reaction (PCR) was used with an internal control to exclude false-negative reactions in a citrus huanglongbing (HLB) assay. Degenerated primers, CSSF-1 (5'-GACACTGTTGGWCAGTATGA-...
Occurrence of concave stem canker of citrus in Ehime Prefecture and detection of the pathogenic fungus Lachnum abnorme by PCR
citrus Lachnum abnorme concave stem canker ITS region PCR
2009/3/16
Brown lesions, a symptom of concave stem canker, were found on Citrus junos (Yuzu) in Hijikawa-cho, Ehime Prefecture, Japan in July 2000. The fungus isolated from the brown lesions by single-spore i...
Scratch method for simple, rapid diagnosis of citrus huanglongbing using iodine to detect high accumulation of starch in the citrus leaves
citrus huanglongbing iodine-starch reaction starch scratch method
2009/3/16
We demonstrated a rapid and simple diagnostic method (scratch method) for citrus huanglongbing (HLB) by detecting high accumulation of starch in the citrus leaves with the iodine-starch reaction. Th...