Fecha de publicación: -- Fuente: PubMed "pollination" J Econ Entomol. 2026 Nov 5:toag333. doi: 10.1093/jee/toag333. Online ahead of print.ABSTRACTInsecticides managing insect pest species in agricultural systems, including soybean, often produce lethal and sublethal non-target effects on beneficial insects, including natural enemies and pollinators. Soybeans (Fabales: Fabaceae: Glycine max (L.) Merr.) are self-pollinating, yet recent studies show that bee communities improve yield and visit blooming soybean. Here, we measured bee community health metrics (abundance, species richness, and the Shannon diversity index) in soybean fields in Columbia, Missouri, in 2019 and 2020 treated with either grower standard foliar application of a pyrethroid spray insecticide or an attract-and-kill strategy consisting of insecticidal fence netting baited with pheromone lures. We observed a significant, 1.19-fold decrease in bee abundance in attract-and-kill treatments compared to grower standard treatments across all application periods (P = 0.001). Exploratory analyses revealed that of the 5 most abundant species, only 1 (Hymenoptera: Apidae: Melissodes bimaculatus (Lepeletier, 1825)) significantly decreased in abundance in attract-and-kill settings compared to grower standard. When excluding this species from captures, the significant abundance difference between treatments disappeared (P = 0.229). Additionally, we found no significant difference between the 2 treatments for richness (P = 0.558) or diversity (P = 0.592). Yet, M. bimaculatus abundance in attract-and-kill treatments was roughly three-quarters 77% of that in grower standard treatments, a stark decline for one of the most prevalent bee species in soybean. Overall, our results suggest that M. bimaculatus alone drives the abundance decrease in attract-and-kill treatments and that diversity overall is not affected. Our study underlines the importance of understanding plant-pollinator networks when considering different pest management strategies.PMID:42986705 | DOI:10.1093/jee/toag333