Parasitic nematodes of plants are microscopic soil-inhabiting organisms. Although they are present in all crop-growing areas, whether in the tropics or under temperate climes, it is predominantly in the tropical regions that these parasites perpetrate extensive damage and crop-yield losses. Market-garden produce, banana, sugar cane and rice are particularly prone to attack.
Chemical control strategies based on regular use of nematicides are to date still the usual recommended means of combating these pests. However, the products are costly, toxic for those who use them and harmful to the environment. Many of them are in any case being taken off the market, which intensifies the need to find other control strategies that are effective and carry no risk for either the users or the environment.
An alternative does present itself, according to IRD researchers and their partners (1). This is to be found among the soil fauna, although their precise role in plant-parasite interactions is still not clear. However, new results from experimentation by that team on the effect of certain earthworm species on the development of nematode-parasitized rice plants showed that these worms enable the plants to grow, in spite of still having substantial nematode populations in their roots. The damage usually caused to these crops is thus counteracted in some way.
Marie Guillaume | alfa
Forest Management Yields Higher Productivity through Biodiversity
14.10.2016 | Technische Universität München
Farming with forests
23.09.2016 | University of Illinois College of Agricultural, Consumer and Environmental Sciences (ACES)
Physicists from the University of Würzburg have designed a light source that emits photon pairs. Two-photon sources are particularly well suited for tap-proof data encryption. The experiment's key ingredients: a semiconductor crystal and some sticky tape.
So-called monolayers are at the heart of the research activities. These "super materials" (as the prestigious science magazine "Nature" puts it) have been...
Ultrafast lasers have introduced new possibilities in engraving ultrafine structures, and scientists are now also investigating how to use them to etch microstructures into thin glass. There are possible applications in analytics (lab on a chip) and especially in electronics and the consumer sector, where great interest has been shown.
This new method was born of a surprising phenomenon: irradiating glass in a particular way with an ultrafast laser has the effect of making the glass up to a...
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
28.10.2016 | Power and Electrical Engineering
28.10.2016 | Physics and Astronomy
28.10.2016 | Life Sciences