Navigation Links
Impact of pelargonic acid for weed control in yellow squash
Date:4/28/2014

DURANT, OK Growers who produce squash for market are increasingly interested in using more natural herbicides that are also effective in providing season-long weed control, but the options for controlling annual broadleaf weeds in summer squash are currently limited. The authors of a new study say that both organic and conventional producers will benefit from the identification of natural herbicides that effectively provide postemergent weed control. Charles Webber III, Merritt Taylor, and James Shrefler conducted a research study published in HortTechnology to determine the impact of pelargonic acid--a fatty acid that occurs naturally in plants and animals and is found in many foods--on weed control efficacy, crop injury, and squash yields of yellow squash.

"Although pelargonic acid is not listed as a 'certified organic' herbicide, it is seen as a more natural type herbicide for use in sustainable crop production," explained Webber. The researchers designed experiments in which pelargonic acid (PA) was applied to 'Enterprise' yellow squash (unshielded postdirected) at 5-, 10-, and 15-lb/acre. The experiments included an untreated weedy control and an untreated weed-free control. Pelargonic acid was applied in mid-July, and then reapplied eight days later.

Results of the experiments revealed that maximum smooth crabgrass control, broadleaf weed control, and yellow nutsedge control occurred with the 15-lb/acre PA treatment at 9 days after initial spray treatment and 1 day after the sequential treatment. Pelargonic acid at 15-lb/acre provided equal or slightly greater smooth crabgrass and broadleaf control compared with the 10-lb/acre application, and consistently greater control than the 5-lb/acre rate and the weedy control. Pelargonic acid was less effective at controlling yellow nutsedge than smooth crabgrass and broadleaf weeds.

Analyses showed that increasing the PA application rate increased the crop injury rating at 1 and 3 days after each application; maximum squash injury occurred for each application rate at 9 days after treatment. Yield analysis found that the 10-lb/acre PA treatment produced the highest squash yields and fruit number compared with either the 5- or 15-lb/acre rates, and yields and fruit number equivalent to the hand-weeded, weed-free treatment.

"This research determined that a sequential postdirected application of pelargonic acid at 10-lb/acre in 40-gal/acre can consistently produce satisfactory weed control with low crop injury to produce weed-free equivalent squash yields," Webber said.


'/>"/>

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

Related biology news :

1. Impact of whooping cough vaccination revealed
2. Connecticut River watershed study will assess impacts of extreme rain events
3. Impact glass stores biodata for millions of years
4. Moth study suggests hidden climate change impacts
5. ASU leads new national research network to study impacts of nanomaterials
6. Scientists reconstruct ancient impact that dwarfs dinosaur-extinction blast
7. Swedish researchers show impact of long-term vitamin D insufficiency on fracture risk
8. Gauging the impact of tropical forest logging: Winrock develops new method for quantifying carbon emissions
9. Software to calculate the environmental, social and economic impacts of transport
10. University of Cincinnati to study impact of blood microparticles in inflammation, injury
11. Study: Stress impacts ability to get pregnant
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Impact of pelargonic acid for weed control in yellow squash
(Date:6/15/2016)... 15, 2016 Transparency Market ... Recognition Market by Application Market - Global Industry Analysis Size ... to the report, the  global gesture recognition market ... and is estimated to grow at a CAGR ... 2024.  Increasing application of gesture recognition ...
(Date:6/7/2016)... TORONTO , June 7, 2016  Syngrafii ... begun a business relationship that includes integrating Syngrafii,s ... pilot branch project. This collaboration will result in ... for the credit union, while maintaining existing document ... http://photos.prnewswire.com/prnh/20160606/375871LOGO ...
(Date:6/2/2016)...   The Weather Company , an IBM Business (NYSE: ... capability in which consumers will be able to interact with ... via voice or text and receive relevant information about the ... Marketers have long sought an advertising solution that can create ... relevant and valuable; and can scale across millions of interactions ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... (PRWEB) , ... June 27, 2016 , ... ... published their findings on what they believe could be a new and helpful ... the new research. Click here to read it now. , Biomarkers ...
(Date:6/27/2016)... 2016  Liquid Biotech USA ... a Sponsored Research Agreement with The University of ... from cancer patients.  The funding will be used ... with clinical outcomes in cancer patients undergoing a ... be employed to support the design of a ...
(Date:6/24/2016)... ... ... While the majority of commercial spectrophotometers and fluorometers use the z-dimension of 8.5 ... end machines that use the more unconventional z-dimension of 20mm. Z-dimension or ... the cuvette holder. , FireflySci has developed several Agilent flow cell product lines ...
(Date:6/23/2016)... , June 23, 2016   Boston Biomedical ... novel compounds designed to target cancer stemness pathways, ... been granted Orphan Drug Designation from the U.S. ... of gastric cancer, including gastroesophageal junction (GEJ) cancer. ... designed to inhibit cancer stemness pathways by targeting ...
Breaking Biology Technology: