
doi: 10.1002/ps.70063
pmid: 40676733
AbstractBACKGROUNDSting nematode (Belonolaimus longicaudatus) is a major pest in Florida strawberry fields, which produce most of winter strawberries in the United States. For decades, fumigants were the only nematicides available for strawberries. Recently, fluensulfone and fluopyram were approved for use in Florida strawberry production, offering more selective and less toxic alternatives to manage sting nematode. From 2018 to 2024, six field experiments were conducted to evaluate the efficacy of fluensulfone and fluopyram (applied alone or in combination) compared to metam potassium or in a program with or without 1,3‐Dichloropropene + chloropicrin on strawberry yield and sting nematode populations.RESULTSMetam potassium consistently yielded higher than the untreated control, despite often higher sting nematode population densities at the end‐season in the first four seasons (2018–2022). In the last two seasons, 1,3‐Dichloropropene + chloropicrin achieved both higher yields and lower sting nematode densities compared to non‐fumigated treatments. Fluensulfone and particularly fluopyram (alone or in combination) significantly reduced sting nematode populations in two and four out of six seasons, respectively, particularly in non‐fumigated plots. While they somewhat improved yields compared to the untreated control.CONCLUSIONMetam potassium and 1,3‐Dichloropropene + chloropicrin, provided the highest strawberry yield, but sting nematode populations often rebounded by the end of the season. Fluensulfone, and especially fluopyram were not as effective in protecting strawberry yield compared to the fumigants, but they effectively reduced sting nematode populations. Both products are useful alternatives to fumigants or additional tools for sting nematode management in Florida strawberries. © 2025 Society of Chemical Industry.
Sulfonamides, Thiazoles, Nematoda, Antinematodal Agents, Florida, Animals, Sulfones, Fragaria
Sulfonamides, Thiazoles, Nematoda, Antinematodal Agents, Florida, Animals, Sulfones, Fragaria
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