Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Bioinsecticide for combating a pest that affects the tomato and the green bean

02.09.2005


The tomato fruitworm is the name given to an insect pest which, due to its polyphagous character, causes very serious damage to a number of plants, such as the tomato and the green bean. Its danger is greater if one takes into account the fact that this pest has developed resistances to chemical insecticides, including tot he latest ones. Thus, a Crop Protection research team from the Public University of Navarra have started work on developing a bioinsecticide that can be used as an alternative control measure.



The research project is called “Characterisation of isolated multiple Helicoverpa armigera nucleopolyhedrovirus for its development as an active material in bioinsecticides”.

A worldwide pest


The Helicoverpa armigera insect, the scientific name for the tomato fruitworm, is found widely distributed throughout Europe, the Middle East, Africa and Oceania, where it is considered to be a very serious pest. In Spain it has been traditionally one of the most important pests in cotton and maize but, since more than a decade ago, it has become a feared pest for several vegetable crops. These insects have a predilection for fruit, penetrating into their interior, on which they feed and frequently emigrating from one fruit to another and capable of destroying several during its larval stage.

Control of this pest with synthetic organic insecticides, apart from the toxicity and environmental problems arising from their use, is turning out to be of little efficacy due to the great capacity the organism has for developing resistances to a great variety of active materials.

Thus the need to put into place alternative control measures, outstanding amongst which is the biological control with baculovirus, a virus exclusive to insect pathogens, and which show a great number of properties favourable to being developed as bioinsecticides.

Contrasted experience

There currently exist some 40 products available in different countries for different species of lepidoptera pests, the active material being baculovirus. Amongst these are some that are specially developed for the control of H. armigera in cotton, but there are still no products specific for vegetable crops.

This is precisely the aim of the mentioned research group from the Public University of Navarra: to design a bioinsecticide that can be used as a control measure. In concrete, as a first stage – that corresponding to the research team -, the biochemical and biological characterisation of the most specific strains of H. armigera found in the extensive collection of baculovirus available to the team will be undertaken. Then, those strains showing the best biological characteristics for their future development as bioinsecticides will be selected.

This first stage is to last two years – to the end of next year, 2006, approximately -, and the completed development of the bioinsecticide could take another two years.

It should be pointed out that the Crop Protection research team from the Public University of Navarra have undertaken, over its 11 years of research, important work on the development of baculovirus as bioinsecticides.The team is currently working together with a company to design a highly effective product against the larvae of Spodoptera exigua, another lepidoptero important in market gardening.

Irati Kortabitarte | alfa
Further information:
http://www.basqueresearch.com
http://www.elhuyar.com

More articles from Agricultural and Forestry Science:

nachricht Kakao in Monokultur verträgt Trockenheit besser als Kakao in Mischsystemen
18.09.2017 | Georg-August-Universität Göttingen

nachricht Ultrasound sensors make forage harvesters more reliable
28.08.2017 | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

Im Focus: Fast, convenient & standardized: New lab innovation for automated tissue engineering & drug

MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.

MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...

Im Focus: Silencing bacteria

HZI researchers pave the way for new agents that render hospital pathogens mute

Pathogenic bacteria are becoming resistant to common antibiotics to an ever increasing degree. One of the most difficult germs is Pseudomonas aeruginosa, a...

Im Focus: Artificial Enzymes for Hydrogen Conversion

Scientists from the MPI for Chemical Energy Conversion report in the first issue of the new journal JOULE.

Cell Press has just released the first issue of Joule, a new journal dedicated to sustainable energy research. In this issue James Birrell, Olaf Rüdiger,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

New quantum phenomena in graphene superlattices

19.09.2017 | Physics and Astronomy

A simple additive to improve film quality

19.09.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>