Featured Research

from universities, journals, and other organizations

Six compounds found in cranberry leaves may naturally reduce insect feeding, growth

Date:
June 22, 2011
Source:
American Society for Horticultural Science
Summary:
To determine whether insect herbivores have a feeding preference for certain cultivars of cranberry, researchers investigated the phenolic profiles in the foliage of two cranberry cultivars, then isolated and identified compounds that differed between the two cultivars. Gypsy moth larvae demonstrated a significant feeding preference for 'Howes' over 'Early Black' cranberry. Red-headed flea beetle adults demonstrated a similar, but not statistically significant, trend, and cranberry weevil preferred neither cultivar.

"Early Black" cranberry was used in the study of pest preferences for cranberry leaves.
Credit: Photo courtesy of courtesy of the University of Massachusetts Cranberry Station

Cranberries are an important commercial crop in states such as Massachusetts, Wisconsin, New Jersey, Washington, and Oregon. Insects and disease can pose serious problems for growers trying to realize profits in heavy cranberry production regions. Since cranberries are a perennial crop, pest damage can have a particularly significant negative impact in the next growing season.

By studying feeding preferences of insects, entomologists have reported that several insects prefer some cranberry cultivars over others. For instance, several insect herbivores have been anecdotally reported to prefer 'Howes' cranberry leaves over those of 'Early Black'. In a recent study published in the Journal of the American Society for Horticultural Science, scientists reported on a series of studies they designed to determine whether these anecdotal reports were accurate and to compare phenolic profiles in the foliage of 'Early Black' and 'Howes' for compounds that differ in concentration and could be possible feeding deterrents.

The scientists conducted bioassays to determine the feeding preferences of three cranberry pests. Gypsy moth larvae, cranberry weevil adults, and red-headed fleabeetle were studied in late June, early July, and early August, respectively, when they were at their most active on the bog. According to the research, gypsy moth larvae demonstrated a significant feeding preference for 'Howes' over 'Early Black'. Red-headed flea beetle adults demonstrated a similar, but not statistically significant, trend, whereas cranberry weevil preferred neither cultivar.

"Compounds giving rise to six peaks in the phenolic profile were significantly greater in concentration in 'Early Black' than 'Howes' on at least one of three sampling dates during the growing season," noted the study's corresponding author Justine Vanden Heuvel. "Five of these compounds were isolated from leaves harvested at the June time point coinciding with gypsy moth infestation and identified as: 5-O-caffeoylquinic acid, 3-O-p-coumaroylquinic acid, 5-O-p-coumaroylquinic acid, quercetin-3-O-galactoside, and quercetin-3-O-rhamnoside."

Vanden Heuvel said that the data suggests that these compounds warrant further investigation as possible insect-feeding deterrents. "The compounds identified in this study should be investigated further to determine their ability to reduce feeding and/or growth of foliage feeders in cranberry. If a feeding deterrent is identified, this deterrent could have potential as a screening method for new cranberry cultivars. Breeding schemes and cultural practices could also be investigated to increase the presence and concentration of the deterrent in cranberry leaves."


Story Source:

The above story is based on materials provided by American Society for Horticultural Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Neto, Catherine C., Dao, Christine A., Salvas, Michelle R., Autio, Wesley R., Vanden Heuvel, Justine E. Variation in Concentration of Phenolic Acid Derivatives and Quercetin Glycosides in Foliage of Cranberry that May Play a Role in Pest Deterrence. J. Amer. Soc. Hort. Sci., 2010 135: 494-500 [link]

Cite This Page:

American Society for Horticultural Science. "Six compounds found in cranberry leaves may naturally reduce insect feeding, growth." ScienceDaily. ScienceDaily, 22 June 2011. <www.sciencedaily.com/releases/2011/06/110622125710.htm>.
American Society for Horticultural Science. (2011, June 22). Six compounds found in cranberry leaves may naturally reduce insect feeding, growth. ScienceDaily. Retrieved September 30, 2014 from www.sciencedaily.com/releases/2011/06/110622125710.htm
American Society for Horticultural Science. "Six compounds found in cranberry leaves may naturally reduce insect feeding, growth." ScienceDaily. www.sciencedaily.com/releases/2011/06/110622125710.htm (accessed September 30, 2014).

Share This



More Plants & Animals News

Tuesday, September 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

California University Designs Sustainable Winery

California University Designs Sustainable Winery

Reuters - US Online Video (Sep. 27, 2014) Amid California's worst drought in decades, scientists at UC Davis design a sustainable winery that includes a water recycling system. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com
Argentina Worries Over Decline of Soybean Prices

Argentina Worries Over Decline of Soybean Prices

AFP (Sep. 27, 2014) The drop in price of soy on the international market is a cause for concern in Argentina, as soybean exports are a major source of income for Latin America's third largest economy. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
Mama Bear, Cubs Hang out in California Backyard

Mama Bear, Cubs Hang out in California Backyard

Reuters - US Online Video (Sep. 27, 2014) A mama bear and her two cubs climb trees, wrestle and take naps in the backyard of a Monrovia, California home. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com
'Crazy' Climate Forces Colombian Farmers to Adapt

'Crazy' Climate Forces Colombian Farmers to Adapt

AFP (Sep. 26, 2014) Once upon a time, farming was a blissfully low-tech business on Colombia's northern plains. Duration: 02:05 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins