Plant health
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Plant pests: The biggest threats

Plant pests: The biggest threats | Plant health | Scoop.it
From www.bbc.co.uk - January 15, 2012 1:48 AM

Agriculture scientist Dr Matthew Cock,  chief scientist for Cabi, a UK-based agri-environment research organisation, lists some of the biggest biological threats to global food security.

 

Pests like desert locust, western corn root worm (Diabrotica virgifera virgifera), the Khapra beetle (Trogoderma granarium), mountain pine beetle (Dendroctonus ponderosae) and colorado potato beetle (Leptinotarsa decemlineata) are suggested together with plant diseases, causing famine in the past: potato blight (Phytophthora infestans), or big economic losses in agricultural production: wheat stem rust strain Ug99 (Puccinia graminis tritici), South American rubber blight (Microcyclus ulei) and cofee wilt disease (Fusarium xylarioides).

The original article (BBC News) was cited also by IPM in the South (18 Jan 2012).

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Occurrence and Genetic Diversity of Winona-Like Plum pox virus Isolates in Russia

Occurrence and Genetic Diversity of Winona-Like Plum pox virus Isolates in Russia | Plant health | Scoop.it
From apsjournals.apsnet.org - July 11, 2012 3:21 PM

In studying the distribution and genetic diversity of Plum pox virus (PPV) in Russia, over a dozen new PPV isolates belonging to the strain Winona (PPV-W) were identified by immunocapture reverse-transcription polymerase chain reaction. The data obtained indicate wide dissemination of PPV-W isolate in stone fruit in the European part of the former USSR.

 

Plant Disease, Volume 96, Issue 8, Page 1135-1142, August 2012.

Anna Sheveleva and Peter Ivanov, Lomonosov Moscow State University; Yuri Prihodko, All-Russian Plant Quarantine Center, Moscow region,; Delano James, Sidney Laboratory–Centre for Plant Health, Canada; and Sergei Chirkov, Department of Virology, Biological Faculty, Lomonosov Moscow State University

http://dx.doi.org/10.1094/PDIS-12-11-1045-RE

 

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Research examines virus infection's differing effects on plants, insects - PhysOrg.com

Research examines virus infection's differing effects on plants, insects - PhysOrg.com | Plant health | Scoop.it
From www.physorg.com - January 30, 2012 12:52 PM

Tyler Sharp: Kansas State University plant pathologist Dorith Rotenberg and two students research why virus infection has differing effects on plants and insects.

 

Tomato spotted wilt virus is classified as a persistently propagative virus, which allows the virus to replicate inside the plant and insect. Thrips spreads the disease to plants by feeding on the leafy surfaces. The virus enters through the digestive tract of the insect and then replicates inside epithelial cells, which absorb nutrients.

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Distribution of Viruses Infecting Cucurbit Crops and Isolation of Potential New Virus-Like Sequences from Weeds in Oklahoma

From apsjournals.apsnet.org - February 1, 2012 11:41 AM

Samples were tested against seven viruses, including Cucumber mosaic virus (CMV), Cucumber green mottle mosaic virus (CGMMV), Melon necrotic spot virus (MNSV), Papaya ringspot virus-watermelon strain (PRSV-W, formerly known as Watermelon mosaic virus-1), Squash mosaic virus (SqMV), Watermelon mosaic virus-2 (WMV-2), and Zucchini yellow mosaic virus (ZYMV), using dot-immunobinding assay (DIBA).

New weed host species were found to be infected with PRSV. Some weed species contained possible new viruses.

Ali et al. (2012) Distribution of Viruses Infecting Cucurbit Crops and Isolation of Potential New Virus-Like Sequences from Weeds in Oklahoma Plant Disease, Volume 96, Issue 2, Page 243-248, February 2012. 

http://dx.doi.org/10.1094/PDIS-05-11-0419

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