Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Human Health Effects Marine & Wildlife Sign in to save

Seasonal variation is a bigger driver of soil faunal and microbial community composition than exposure to the neonicotinoid acetamiprid within Brassica napus production systems

Soil Biology and Biochemistry 2023 5 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Jessica Potts, Robert W. Brown, Robert W. Brown, Robert W. Brown, Davey L. Jones Davey L. Jones Robert W. Brown, Robert W. Brown, Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Robert W. Brown, Davey L. Jones Davey L. Jones Robert W. Brown, Davey L. Jones Paul C. Cross, Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Robert W. Brown, Robert W. Brown, Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Robert W. Brown, Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Robert W. Brown, Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Robert W. Brown, Robert W. Brown, Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones Davey L. Jones

Summary

Researchers investigated whether seasonal variation or neonicotinoid pesticide application is the dominant driver of soil invertebrate and microbial community composition in agroecosystems, finding that seasonal shifts outweigh the detectable effects of neonicotinoid exposure under field conditions.

Neonicotinoid pesticides are widely used within agroecosystems. Due to their systemic nature and high solubility, neonicotinoids are frequently recorded in soil, water, untreated plant matter and non-target organisms. Studies have demonstrated their capacity to induce invertebrate mortality, however, very little research has been conducted beyond pollinator exposure, particularly under field conditions. Typically, many neonicotinoids are applied via seed-dressings, reducing their direct contact with pollinators, but offering an unintended soil-exposure pathway. Soil biology underpins many vital functions, from regulating water and gas flow, to maintaining physical soil structure. In this study we investigated the effect of a commercial neonicotinoid pesticide (Insyst®) on the abundance, richness, and composition of both the mesofaunal and microbial communities and associated metabolome during oilseed rape (Brassica napus L.) production. Our results showed that over a single growing season, foliar application of Insyst® (250 g ha−1, 50 g ha−1 of the active ingredient, acetamiprid) had no significant effect (P > 0.05) on the measured soil biological indexes. Seasonal variation was a significantly greater driver in regulating biological communities within the soil than Insyst® application. In addition, we showed that the active ingredient (acetamiprid) was rapidly degraded by the soil microbial community (theoretical half-life = 119 days) during the summer cropping season. These results help highlight the need for realistic field studies, as agricultural pesticides are never pure, often containing surfactants, adjuvants, or emulsifiers which alter their behaviour and ecotoxicity. Understanding the biological interactions of vital soil fauna with necessary pesticide usage will enable proper risk alleviation measures to maintain soil biological and ecological health.

Read via DOI Download PDF

Share this paper

Post Share Share Pin Email