Navigation Links
Are sweetpotato weevils differentially attracted to certain colors?

The sweetpotato weevil, Cylas formicarius (Fabricius), is the most serious pest of sweetpotato around the world, damaging sweetpotatoes in the field and in storage. Because the larval period is spent within vines or tubers, and the adults are nocturnal, chemical control frequently is not effective.

Mass trapping using synthetic pheromones has suppressed populations of sweetpotato weevil males in several countries, but it has not reduced the damage greatly. However, a new study published in Annals of the Entomological Society of America suggests that the color of the traps may affect their usefulness.

For years Dr. Gadi V.P. Reddy (Montana State University) has been searching for the right formula to control this insect without the use of toxic pesticides. In his most recent study with Nirupa Gadi (University of Guam), the researchers found that green traps were most effective in attracting the weevils in indoor conditions, while red traps were most effective in outdoor field conditions.

"Sweetpotato weevils responded to pheromone baited traps of different colors differently in the field and indoors," said Dr. Reddy. "In the field, sweetpotato weevils preferred red, and particularly light red, over the other colors, but indoors, green traps were favored. We have no explanation for the difference. Further studies focusing on why insect behavior changes from outdoors to indoors will be required to find out."


Contact: Dr. Gadi V.P. Reddy
Entomological Society of America

Page: 1

Related biology news :

1. Several common differentially expressed genes between Kashin-Beck disease and Keshan disease
2. Import of proteins into chloroplasts is differentially regulated by age
3. Bees attracted to contrasting colors when looking for nectar
4. Mating is the kiss of death for certain female worms
5. Gene found to be crucial for formation of certain brain circuitry
6. Can certain herbs stave off Alzheimers disease?
7. Study explores the role of uncertainty in infectious disease modelling
8. Frost & Sullivan: Renewable Energy Targets Help Sustain European Biopower Market amid Economic Uncertainty
9. Habilitative services under health reform faces uncertainty, new analysis says
10. Optimal vitamin D dosage for infants uncertain
11. Deadly effects of certain kinds of household air pollution lead to call for biomarker studies
Post Your Comments:
Related Image:
Are sweetpotato weevils differentially attracted to certain colors?
(Date:10/29/2015)... 29, 2015  Connected health pioneer, Joseph C. ... of technology-enabled health and wellness, and the business opportunities ... The Internet of Healthy Things . Long ... even existed, Dr. Kvedar, vice president, Connected Health, Partners ... delivery, moving care from the hospital or doctor,s office ...
(Date:10/29/2015)... 2015 Today, LifeBEAM , a ... 2XU, a global leader in technical performance sports ... with advanced bio-sensing technology. The hat will allow ... key biometrics to improve overall training performance. As ... will bring together the most advanced technology, extensive ...
(Date:10/27/2015)... -- Munich, Germany , October ... automatically maps data from mobile eye tracking videos created ... that they can be quantitatively analyzed with SMI,s analysis ... , October 28-29, 2015. SMI,s Automated Semantic Gaze ... tracking videos created with SMI,s Eye Tracking Glasses ...
Breaking Biology News(10 mins):
(Date:11/24/2015)... Nov. 24, 2015  Asia-Pacific (APAC) holds the ... (CRO) market. The trend of outsourcing to low-cost ... but higher volume share for the region in ... however, margins in the CRO industry will improve. ... ( ), finds that the market ...
(Date:11/24/2015)... -- Cepheid (NASDAQ: CPHD ) today announced that ... and invited investors to participate via webcast. ... 1, 2015 at 11.00 a.m. Eastern Time --> ... 1, 2015 at 11.00 a.m. Eastern Time --> ... NY      Tuesday, December 1, 2015 at 11.00 ...
(Date:11/24/2015)... 24, 2015 /CNW/ - iCo Therapeutics ("iCo" or "the ... results for the quarter ended September 30, 2015. ... dollars and presented under International Financial Reporting Standards ... ," said Andrew Rae , President & ... are not only value enriching for this clinical ...
(Date:11/24/2015)... ... 24, 2015 , ... International Society for Pharmaceutical Engineering (ISPE) ... annual events for pharmaceutical manufacturing: 2015 Annual Meeting. The conference took place in ... largest number of attendees in more than a decade. , “The 2015 ...
Breaking Biology Technology: