De Fazio Rosario, Piras Cristian, Britti Domenico
Department of Health Sciences, "Magna Græcia University" of Catanzaro, Campus Universitario "Salvatore Venuta" Viale Europa, 88100 Catanzaro, Italy.
CISVetSUA, "Magna Græcia University" of Catanzaro, Campus Universitario "Salvatore Venuta" Viale Europa, 88100 Catanzaro, Italy.
Toxics. 2024 Aug 21;12(8):615. doi: 10.3390/toxics12080615.
Deltamethrin is used against plant pests (e.g., mites and ants) and, in farm animals, against biting insects because of its acaricidal and repellent effects against ticks, thus protecting the sheep and cattle from the transmission of pathogens. However, its impact on the environment still needs to be fully evaluated. This study evaluates the impact of this pyrethroid on the nitrogen-fixing nodules in , a model legume. This research compares nodular biomass and root weight between a deltamethrin-treated section and an untreated control section of this legume. Our results indicate a significant reduction in the biomass of nitrogen-fixing nodules in the treated grove, suggesting that deltamethrin negatively affects the symbiotic relationship between and nitrogen-fixing bacteria. This reduction in nodule formation can impair soil fertility and plant growth, highlighting an ecological risk associated with pyrethroid's use in livestock farming. These findings underscore the need for a shift towards Green Veterinary Pharmacology (GVP), which promotes environmentally sustainable practices in managing livestock health. By minimizing our reliance on harmful chemical treatments, GVP offers viable solutions to protect and enhance ecosystem services such as biological nitrogen fixation that are essential for maintaining soil health and agricultural productivity.
溴氰菊酯因其对蜱虫的杀螨和驱避作用,被用于防治植物害虫(如螨虫和蚂蚁),在农场动物中用于防治叮咬昆虫,从而保护绵羊和牛免受病原体传播。然而,其对环境的影响仍需全面评估。本研究评估了这种拟除虫菊酯对豆科模式植物固氮根瘤的影响。本研究比较了该豆科植物经溴氰菊酯处理的部分和未处理的对照部分之间的根瘤生物量和根重。我们的结果表明,处理过的树林中固氮根瘤的生物量显著减少,这表明溴氰菊酯对该植物与固氮细菌之间的共生关系有负面影响。根瘤形成的减少会损害土壤肥力和植物生长,突出了拟除虫菊酯在畜牧业中使用所带来的生态风险。这些发现强调了向绿色兽医药理学(GVP)转变的必要性,GVP促进在管理牲畜健康方面采用环境可持续的做法。通过尽量减少我们对有害化学处理的依赖,GVP提供了可行的解决方案,以保护和增强诸如生物固氮等生态系统服务,而生物固氮对于维持土壤健康和农业生产力至关重要。