Spotted Wing Drosophila, a well-known pest that infests ripe, ready-to-eat fruit, poses a significant threat to farmers because it is very difficult to control with standard pesticides. A new approach to tackling this pest involves manipulating the behavior of these insects by disguising healthy fruit as if it were infected with an unappealing pathogen.
By studying the specific odors emitted by infected fruit, researchers have identified the chemicals that repel the flies when applied to healthy fruit and are developing a slow-release device to disperse these fruity odors in the field, ensuring that they do not come into direct contact with the fruit. This method provides a new tool to help farmers protect their crops without relying exclusively on insecticides.
Some regions, like the Midwest, are facing the onset of an agricultural recession. The recession stems largely from extreme weather conditions, rising production and labor costs, global supply-and-demand imbalances, and declining farmer revenues and disaster aid.
The study compared 3 Grace Star plants with increasing density (low, medium and high), without cover, between the provinces of Modena and Forlì-Cesena. As the data show, the cherry tree in Emilia-Romagna is still a profitable investment.
In Murcia, a field study on ‘Sweetheart’ sweet cherry evaluates kaolinite and calcite against heat stress, drought and solar radiation. Foliar mineral sprays improve leaf reflectance, temperature response and nutritional balance in trees exposed to intense summer heat.
Oregon State University’s Decoy technology aims to reduce insecticide use against spotted-wing drosophila, protecting cherries, blueberries and soft fruit with attract-and-kill systems, slow-release traps and integrated biological control for fruit growers on U.S. farms.