Navigation Links
Predatory bugs can save cornfields
Date:11/30/2010

This press release is available in Spanish.

One of the worst pests of corn in the world, the corn rootworm, may owe its worldwide success partly to its larvae's nasty, sticky blood.

U.S. Department of Agriculture (USDA) entomologist Jonathan G. Lundgren and his colleagues discovered this recently, working with CABI researchers in Delmont, Switzerland, and Hdmezővsrhely, Hungary. The discovery could lead to development of ways to overcome these defenses as part of sustainable, ecologically based pest management methods.

Lundgren works at the Agricultural Research Service (ARS) North Central Agricultural Research Laboratory in Brookings, S.D. ARS is USDA's principal intramural scientific research agency, and this research supports the USDA priority of promoting international food security. CABI is an international not-for-profit organization that researches natural ways of controlling pests, and they have been helping to lead the effort against corn rootworm's European invasion.

The experiments with CABI are the latest in Lundgren's research on corn rootworm predators. Although rootworms have been a major pest for 100 years, this is remarkably the first comprehensive research program on corn rootworm predators to be conducted.

In lab and field experiments in the United States and abroad, the rootworm larvae's sticky blood caused certain species of predators to quickly back off. The foul-tasting blood coagulated in the predators' mouths, temporarily gluing them shut. Predators repelled by the rootworm larvae's blood included ground beetles and ants.

Wolf spiders, on the other hand, had a hearty appetite for rootworms. When insects such as spiders suck fluids from prey rather than chewing their victims, they may be able to bypass the ability of the blood to stick and linger.

The experiments with CABI involved two years of lab and field experiments, begun in 2007, in the United States and Hungary. In the Brookings laboratory, Lundgren and colleagues offered hungry predators a smorgasbord of rootworm larvae and pupae. In all, they have tested 10 different predator species from Europe and North America.

The results have led Lundgren to research managing crop fields to encourage large and diverse predator populations.


'/>"/>

Contact: Don Comis
Donald.Comis@ars.usda.gov
301-504-1625
United States Department of Agriculture -- Research, Education and Economics
Source:Eurekalert

Related biology news :

1. Predatory bacterial swarm uses rippling motion to reach prey
2. Mighty predatory mite and oil sprays may save eggplant production in Micronesia
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2017)... GENOA, Italy , May 23, 2017  Hunova, the first robotic ... and trunk, has been officially launched in Genoa, Italy ... Europe and the USA . The ... launched on the market by the IIT spin-off Movendo Technology thanks to ... view the Multimedia News Release, please click: ...
(Date:4/24/2017)... , April 24, 2017 ... and partner with  Identity Strategy Partners, LLP (IdSP) ... "With or without President Trump,s March 6, 2017 ... Terrorist Entry , refugee vetting can be instilled with ... resettlement. (Right now, all refugee applications are suspended ...
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced ... will feature emerging and evolving technology through ... Innovation Summits will run alongside the expo portion of ... sessions, panels and demonstrations focused on trending topics within ... advanced design and manufacturing event will take place June ...
Breaking Biology News(10 mins):
(Date:6/22/2017)... ... June 22, 2017 , ... RURO, Inc., a leading ... 6.5, a content-packed update to the Limfinity® framework. , LimitLIS® and other RURO ... diverse base of customers among labs and other businesses. Limfinity® 6.5 adds new ...
(Date:6/20/2017)... Pa. , June 20, 2017  Kibow Biotech ... pleased to announce the issuance of a new patent ... or hyperuricemia by the U.S. Patent and Trademark Office ... a winner of the Buzz of Bio award in ... is akin to developing non-drug approaches to chronic disease. ...
(Date:6/19/2017)... ... June 19, 2017 , ... ... clinical development reported today that it is launching two new additions of its ... be demonstrating new capabilities at the DIA 2017 Annual Meeting in Chicago, IL, ...
(Date:6/16/2017)... ... June 16, 2017 , ... CTNext , Connecticut’s go-to resource ... held at The LOFT at Chelsea Piers in Stamford. , Nine finalists, all of ... of judges for an opportunity to secure $10,000 awards to help support business growth. ...
Breaking Biology Technology: