The effects of agrochemicals on Lepidoptera, with a focus on moths, and their pollination service in field margin habitats

摘要: Abstract In agricultural landscapes, field margins are potential habitats for moths and butterflies (Lepidoptera). However, because of their proximity to sites, can be affected by inputs pesticides fertilizers. the present study, we assessed use caterpillars as habitat. Furthermore, effects realistic margin input rates various agrochemicals on moths, especially caterpillar stages, were studied in field, semi-field, laboratory experiments. Our monitoring results indicate that, although found margins, mean abundance was 35–60% lower compared meadows. a experiment, insecticide treatment (pyrethroid, lambda-cyhalothrin) significantly reduced number only 15% sampled occurred insecticide-treated plots. community composition caterpillars, whereas fertilizer slightly increased abundance. experiments, Mamestra brassicae shown very sensitive when exposed leaves (rate that kills 50% test (LR50) after 48 h: 0.78% recommended rate; this rate corresponds arable spray drift at distance 3–4 m from crop), also appeared avoid feeding treated leaves. addition, semi-field 40% fewer eggs Hadena bicruris Silene latifolia plants sprayed with control flowers less likely pollinated moths. Overall, these studies illustrate they agrochemicals. As important prey organisms adult act pollinators, should maintain biodiversity landscapes.