A solution may lie in the perennial plant, Lippia javanica, widely consumed to alleviate symptoms of fever is also used by some farmers to make a pesticide. The University of Greenwich team in collaboration with the University of Zimbabwe, pulped and soaked the Lippia leaves in water to produce an extract which could be sprayed on cattle. Varying concentrations were tried to discover the best application method and the level of protection provided by the plant extract.
The research was led by Phil Stevenson, Professor of Plant Chemistry and Dr Steven Belmain, Ecologist, from the Agriculture, Health & Environment Department at the Natural Resources Institute (NRI). Professor Phil Stevenson says: “When used at the correct dosage, Lippia javanica proved to be almost as effective as the industrial pesticides used for tick control.”
The shrub’s leaves can easily be harvested from abundant bushes in the wild and can also be easily grown from seed. Therefore, farmers need think only about the time it takes them to harvest and prepare the Lippia extract as opposed to buying expensive commercial synthetic products.
Further work is being carried out to refine the extraction of the active ingredients of the plant and optimise application on the lower parts of the animal where the ticks usually attach themselves.
The work is part of the EU funded African Dryland Alliance for Pesticidal Plant Technologies (ADAPPT) project led by NRI, together with partners including the Royal Botanic Gardens, Kew and non-governmental organisations, agricultural institutes, ministries and universities from eight African countries.
The project is carrying out research into the use of plants as environmentally benign and safer alternatives to synthetic pesticides. It is examining roots, leaves, seeds, and flowers requiring only basic preparation which farmers can use to reduce field crop damage, stored product losses and livestock illness or mortality.
For more information see the project website at www.nri.org/adappt
To learn more about the University of Greenwich’s Natural Resources Institute see http://www.gre.ac.uk/schools/nri
Researchers discover natural product that could lead to new class of commercial herbicide
16.07.2018 | UCLA Samueli School of Engineering
Advance warning system via cell phone app: Avoiding extreme weather damage in agriculture
12.07.2018 | Leibniz-Zentrum für Agrarlandschaftsforschung (ZALF) e.V.
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
16.07.2018 | Physics and Astronomy
16.07.2018 | Life Sciences
16.07.2018 | Earth Sciences