Navigation Links
Watermelon's hidden killer
Date:9/4/2009

CHARLESTON, SCWatermelon vine decline (WVD) is a new and emerging disease that has created devastating economic losses for watermelon producers in Florida. Caused by the whitefly-transmitted squash vein yellowing virus (SqVYV), the disease created monetary losses estimated at $60 to $70 million in Florida during the 2004 growing season. The virus has become endemic in Florida and has appeared to varying degrees every season since it was first observed.

Symptoms of WVD typically occur at or just before harvest, when the vines rapidly collapse. Although affected fruit can appear healthy, rind necrosis and flesh degradation are often evident when fruits are cut, dramatically limiting marketability. The disease progresses rapidly; in some fields vine decline increased from 10% affected plants to greater than 80% within a week. In other cases, entire watermelon fields were lost to WVD. Clearly, the healthy and popular watermelon is under siege from the WVD plague.

Responding to producers' concerns, scientists recently identified the cause of WVD and are seeking ways to control the plague. Chandrasekar S. Kousik and colleagues at the U.S. Department of AgricultureAgricultural Research Service (ARS) and SWFREC, University of Florida, published the results of a research study of WVD in a recent issue of the ASHS journal HortScience. "In this study, we presented results of greenhouse and field evaluations of U.S. plant introductions for resistance to SqVYV", explained Kousik.

Although whitefly management can significantly reduce the population of this SQVYV vector, complete control is not possible. Thus, the search for long-term and sustainable strategies to manage SqVYV remains important. Development of watermelon cultivars resistant to either SqVYV or its whitefly vector is a promising alternative.

Of the 218 plant introductions (PI) evaluated in the study, none were completely immune, but several PI showed varying levels of
'/>"/>

Contact: Michael W. Neff
mwneff@ashs.org
703-836-4606
American Society for Horticultural Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. Hidden genitalia in female water striders makes males sing
2. Hidden infections crucial to understanding, controlling disease outbreaks
3. How hidden mutations contribute to HIV drug resistance
4. Researchers reveal insights into hidden world of protein folding
5. Using ground-penetrating radar to observe hidden underground water processes
6. Exploration of lake hidden beneath Antarcticas ice sheet begins
7. New plant study reveals a deeply hidden layer of the transcriptome
8. Poor Americans in the United States suffer hidden burden of parasitic and other neglected diseases
9. Stanford/Packard researchers find disease genes hidden in discarded data
10. UD plant biologists uncover top wetland plants hidden weapon
11. Biologists expose hidden costs of firefly flashes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/28/2014)... other forms of dementia, but the research community is ... Washington bioengineers have a designed a peptide structure that ... proteins into a state that,s linked to widespread diseases ... and Lou Gehrig,s disease. The synthetic molecule blocks these ... an abnormally folded form by targeting a toxic intermediate ...
(Date:7/28/2014)... He calls himself the bug hunter, but the target ... be found and identified with special methods and instruments. ... State Veterinary Diagnostic Laboratory at Kansas State University, recently ... enterovirus G, which is an important find in the ... cells, but didn,t know what it was," Hause said. ...
(Date:7/28/2014)... 28, 2014)The Brain & Behavior Research Foundation today ... Freedman Prizes, recognizing exceptional clinical and basic research ... NARSAD Young Investigator Grants. The grants enable early ... and psychosocial research for the prevention, early detection, ... one in four people. , Six young scientistswinners ...
Breaking Biology News(10 mins):New protein structure could help treat Alzheimer's, related diseases 2New protein structure could help treat Alzheimer's, related diseases 3Researcher using next-generation sequencing to rapidly identify pathogens 2Researcher using next-generation sequencing to rapidly identify pathogens 3The Brain & Behavior Research Foundation names winners of Klerman and Freedman Prizes 2The Brain & Behavior Research Foundation names winners of Klerman and Freedman Prizes 3The Brain & Behavior Research Foundation names winners of Klerman and Freedman Prizes 4
... 2012)A new study led by North Carolina researchers has ... loss, aerobic training is better than resistance training. The ... directly compare changes in body composition induced by comparable ... or both in combination, among previously inactive overweight or ...
... , This press release is available in ... Agriculture (USDA) scientists are developing strategies to help livestock ... of cattle in the United States. ... Research Service (ARS) Agroecosystem Management Research Unit (AMRU) in ...
... Amid growing concern over the surprisingly large amount ... other telecommunications activities, researchers are reporting new models ... reduce their carbon footprint. Their report appears in ... Researchers from the Centre for Energy-Efficient ...
Cached Biology News:For those short on time, aerobic, not resistance, exercise is best bet for weight, fat loss 2Treating stable flies in pastures 2
(Date:7/25/2014)... At the request of the AMA, the ... for the public comment period (Docket No. FAA-2014-0396) for ... established by Congress as part of the FAA Modernization ... the new deadline for comments as September 23, 2014. ... published in the Federal Register on July 25, 2014, ...
(Date:7/24/2014)... 2014 -- Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) (the "Company") announced ... control Phase 3 study of Zerenex (ferric citrate), the ... treatment of hyperphosphatemia in patients with end-stage renal disease ... iRon delivery with FErric CiTrate in EsrD) was published ... Society of Nephrology ( JASN ). ...
(Date:7/24/2014)... (PRWEB) July 24, 2014 Gain ... Global Supply Chain of the biotech industry. Nominations ... Innovation Awards, brought to you by the ... organization of supply chain management professionals for the ... to stakeholders of the Biotech industry – Manufacturers, ...
(Date:7/24/2014)... , July 24, 2014  Asterias Biotherapeutics, ... the emerging field of regenerative medicine, announced today ... a presentation to investors on Tuesday, July 29, ...  The presentation will include an overview of Asterias, ... the webcast, visit http://www.ustream.tv/channel/asterias-biotherapeutics at least ...
Breaking Biology Technology:FAA Grants Comment Extension at the Request of AMA 2Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 4Call for Submission: BSMA’s Supply Chain Management Innovation Awards 2Call for Submission: BSMA’s Supply Chain Management Innovation Awards 3Asterias Biotherapeutics Announces Live Investor Webcast 2Asterias Biotherapeutics Announces Live Investor Webcast 3Asterias Biotherapeutics Announces Live Investor Webcast 4
... FRANCISCO, June 7, 2011 Vaxart, Inc., a San Francisco ... a Phase I clinical trial. This is the first clinical ... platform technology. The trial site is in the United States. ... if safety is demonstrated with one vaccine, we can expect ...
... YORK, June 7, 2011 DuPont (NYSE: ... told investors at the JPMorgan Diversified Industries Conference to ... process innovation, selective investment in attractive areas, broad-based growth, ... productivity.  Kullman also reaffirmed DuPont,s 2011 earnings per share ...
... Infrared Systems International (OTCBB: IFRS) is pleased to announce ... of its NatuRx™ HIV/AIDS treatment and will push forward with ... concluded a pilot study with two HIV/AIDS patients this week ... first reported AIDS victims on June 5th, 1981. ...
Cached Biology Technology:Vaxart Begins First Oral Vaccine Clinical Trial 2DuPont Chair & CEO: Delivering Innovative Solutions and Long-term Growth 2DuPont Chair & CEO: Delivering Innovative Solutions and Long-term Growth 3Infrared Systems International's Subsidiary, AquaLiv, Inc., Strives to Be a Game Changer in Fight Against HIV/AIDS 2Infrared Systems International's Subsidiary, AquaLiv, Inc., Strives to Be a Game Changer in Fight Against HIV/AIDS 3
... active ingredient in Molecular Probes. SlowFadeAntifade ... to act as a free radical ... Our original SlowFade formulation (S-2828) was ... of fluorescein to almost zero (Figure ...
b6-2A12...
... in this kit are prepared with pure ... Biochains Mitochondria Isolation Kit is designed to ... fast and easy way. One kit is ... isolations (enriching mitochondria from 10 20 ...
... The Freedom EVOlyzer is Tecans new ... automated microplate processing. Freedom EVOlyzer is a ... includes state-of-the art reader, washer and incubation ... software. The Freedom EVOlyzer is available in ...
Biology Products: