The presence of the El Niño phenomenon generated favourable climatic conditions for the development of Drosophila suzukii, a fly that threatens cherry orchards this season. The higher relative humidity resulting from a cooler and wetter spring, especially in central and southern regions, could favour an increase in the populations of this pest from the veraison phase, when the fruit is more susceptible to attack.
Despite the good climatic conditions for the spread of Drosophila suzukii, experts point out that growers have gained more knowledge about the pest in previous years, which enables them to control it more effectively and minimise risks. Although conditions are favourable, the experts believe that the worst is over and that it is now up to growers to keep the situation under control.
Despite the apparent improvement in weather conditions, experts emphasise the importance of monitoring and controlling the presence of Drosophila suzukii in orchards. Mass traps strategically placed in the orchard and surrounding areas, especially where fly host species are present, are recommended.
Surveillance and application of insecticides are essential, especially from the colour break, when cherry trees are most susceptible to this pest.
1) Ciclo di vita da uovo a adulto tra 8-18 giorni. 2) Tre le 10-15 generazioni l'anno. 3) Longevità tra 21-66 giorni. 4) Una femmina può deporre tra 400-600 uova. 5) Può deporre fino a 3 uova per frutto.
The experts also emphasise the need for adequate rotation of the active ingredients of the insecticides used, as Drosophila suzukii can develop resistance to the products. They also emphasise the importance of continuing research and development of biological tools such as repellents, chilli and garlic extracts, as well as fungal and bacterial products, to complement control strategies.
In conclusion, despite growers' experience, the presence of El Niño and current climatic conditions require constant vigilance and preventive measures to protect cherry orchards from the threat of Drosophila suzukii.
Source: Cerezos Chile
Images: Cerezos Chile
15 Oct 2025
A new enzymatic protocol enables accurate starch quantification in sweet cherry floral buds, even from preserved samples. The method is fast, sensitive and suitable for large-scale studies in plant physiology and reproductive biology of stone fruit trees.
25 Apr 2025
The Chilean cherry industry achieved record exports in 2025, but faces falling prices and market challenges. China remains key, but there is a need to diversify, improve quality and rebuild consumer and trade confidence.
29 Jun 2026
I bioreattori SETISTM migliorano crescita, vigore e radicazione dei portinnesti di ciliegio dolce Prunus avium e Gisela 6. Lo studio evidenzia vantaggi produttivi e sfide legate a iperidricità, genotipo e protocolli di micropropagazione per vivai più efficienti.
29 Jun 2026
In Germany, per capita consumption of cherries and sour cherries fell to 1.7 kg in 2025, while national production rose 33% thanks to favorable weather. Spain, Greece and Italy remain key suppliers, supporting both fresh fruit sales and industrial processing.
