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.
Internationally known for the apricot varieties marketed under the COT brand name, the French company has been directing its interests in cherry varietal innovation for a few years now, leading to its own genetic improvement programme in 2012.
‘Different packaging companies are at different stages of digitisation,’ said Jon Cox, vice-president of Double Diamond, a packaging company in Quincy, Washington. ‘They have caught up with us where we were and are taking us to the next stage.’
A Holovousy study in the Czech Republic examines 35 sweet cherry accessions and highlights the role of genetics, dry matter and ascorbic acid in resistance to surface pitting, a key issue for postharvest quality, shelf life and market value.
In sweet cherry, productivity starts in the previous cycle: floral induction, bud differentiation, reserves, irrigation and canopy management influence flowering, fruit set and quality in the following season, making post-harvest care decisive for stable yields and premium fruit.