The Washington Tree Fruit Research Commission has released the 2024 report on pesticide residues for sweet cherry production in the Northwest.
According to the Commission's announcement, this annual effort aims to provide the industry with guidance for pest management decisions, taking into account the maximum residue levels (MRLs) in some foreign markets.
During the 2024 cherry season, in a mature block of Skeena, the Commission's researchers applied and then analyzed 14 active ingredients commonly found in 11 insecticides and miticides and three fungicides. The main goal of the study was to replicate the “worst-case scenario” regarding residues, using aggressive doses, timings, and intervals that are legal according to product labels but may not reflect typical commercial use.
With this approach, which involved two applications of most products, all residues were compliant with national regulations. However, in some key export markets, the MRLs for certain products are set at the “limit of quantification,” which is the lowest detectable residue that can be measured, making it “virtually impossible to meet such standards” if the product is applied, according to the report.
Read the full article: Good Fruit Grower
Image: SL Fruit Service
28 Jan 2025
Four cherry varieties (Ferrovia, Regina, Kordia, and Skeena) grafted onto two rootstocks (Gisela 6 and MaxMa 14) were the subject of a study conducted at the Fruit Growing Institute in Plovdiv (Bulgaria).
19 Mar 2024
A study was conducted in Ukraine to determine the impact of different pruning techniques and conditions on young cherry trees. The varieties used were 'Krupnoplidna' and 'Melitopolska Chorna', both grafted onto Colt rootstock.
17 Sep 2025
In Spain’s Jerte Valley, new Picota cherry cultivars enhance fruit quality, reduce pit size, and support stem-free harvesting. A recent study identifies four promising genotypes with commercial size, shelf-life resistance, and post-harvest performance in MAP.
17 Sep 2025
Field trials tested Armonigro on Brooks and Santina cherry trees and May Glo nectarines in Chile’s Aconcagua Valley. The treatments aimed to improve yield and fruit size under adverse climatic conditions, including low chill hours and irregular bud development.
