Biotechnology aiding the fight against cowpea pest damage in Africa
Cowpea (Vigna unguiculata), a staple crop in West Africa, is consumed by more than 200 million people a day and is an important source of income for farming communities. Nigeria is the largest producer of cowpea, yet still imports roughly 500,000 tonnes of the crop per year due to the domestic consumption demand. This need…
Could Spider Venom Be Used As A Novel Insecticide For Major Crop Pests?
A new protein discovered in the venom of Australian tarantulas can also kill insect pests that consume the venom orally. The protein known as orally active insecticidal peptide-1 (OAIP-1) was found to be highly toxic to insects that consumed it, with a similar efficacy to the neonicotinoid insecticide imidacloprid. In particular, the protein was found…
The Evolution of Insect Resistance to Bt Crops
A group of scientists at the University of Arizona have this week published a paper in Nature Biotechnology on the evolution of resistance in insect pests populations to insecticidal proteins from Bacillus thuringiensis (Bt) that are produced by transgenic crops. Resistance is defined as the phenotype of an individual that gives the individual the ability to…