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:12/15/2016)... -- "Increase in mobile transactions is driving the growth ... is expected to grow from USD 4.03 billion in ... CAGR of 29.3% between 2016 and 2022. The market ... for smart devices, government initiatives, and increasing penetration of ... expected to grow at a high rate during the ...
(Date:12/8/2016)... , Dec. 8, 2016 Market Research Future published ... Market. The global Mobile Biometric Security and Service Market is expected ... to 2022. Market Highlights: ... , , Mobile Biometric ... due to the increasing need of authentication and security from unwanted ...
(Date:12/7/2016)... 2016 According to a new market research report "Emotion ... Expression, Voice Recognition), Service, Application Area, End User, And Region - Global Forecast ... USD 6.72 Billion in 2016 to USD 36.07 Billion by 2021, at a ... Reading ... MarketsandMarkets Logo ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... , Jan. 19, 2017  Market Research Future has a half ... for Liquid Biopsy is growing rapidly and expected to reach USD ... Market Highlights ... Global Liquid Biopsy Market has been assessed as a swiftly growing ... and boom in the coming future. There has been a tremendous ...
(Date:1/19/2017)... ... January 19, 2017 , ... November ... to leading biopharmaceutical and medical device manufacturers and regulators, is proud to announce ... Part 11-compliant email client designed to provide product vigilance departments with the flexibility ...
(Date:1/19/2017)... ... January 18, 2017 , ... LabRoots , ... from around the world, was today awarded the "Best Science & Technology Social ... on merit and decided upon by a dedicated team of researchers and analysts. ...
(Date:1/19/2017)... , Jan. 18, 2017 Acupath Laboratories, ... announces the formation of an Executive Committee that will ... beyond. John Cucci , a 15-year ... from Director of Business Development to Chief Sales ... Mr. Cucci served in senior sales leadership roles at ...
Breaking Biology Technology: