Scientists have revealed for the first time the natural weapon used by marigolds to protect tomato plants against destructive whiteflies.
Scientists have revealed for the first time the natural weapon used by marigolds to protect tomato plants against destructive whiteflies.
Researchers from Newcastle University’s School of Natural and Environmental Sciences, carried out a study to prove what gardeners around the world have known for generations - marigolds repel tomato whiteflies.
Publishing their findings today (1 March 2019) in the journal PLOS ONE, the experts have identified limonene - released by marigolds - as the main component responsible for keeping tomato whiteflies at bay. The insects find the smell of limonene repellent and are slowed down by the powerful chemical.
Large-scale application
The findings of the study have the potential to pave the way to developing a safer and cheaper alternatives to pesticides.
Read more at Newcastle University
Photo Credit: Bru-nO via Pixabay
