Faunistic analysis and seasonal fluctuation of ladybeetles in an agro-ecological system installed for organic vegetable production

Plans for an agro-ecological system agricultural production must consider vegetal diversification in properties because, among other advantages, it can help the biological control of pests when focuses on such end. Predator ladybeetles (Coleoptera: Coccinellidae) be found different environments; they play important role control. The aims present study were to feature ladybeetle populations through faunistic analysis and determine their fluctuations comprising seven sub-systems subjected cultivation systems Seropédica County, RJ. experiment was conducted from December/2018 December/2019 at Módulo de Cultivo Orgânico Intensivo Hortaliças (MCOIH), which is located Sistema Integrado Produção Agroecológica (SIPA). In total, 1,231 adult captured, distributed into 13 species, 3 genera 2 tribes Coccinellidae, resulted S (taxon richness) = 19, Shannon-Wiener diversity index (H’) 0.65 (at 0 1 scale) Margalef (α) 2.53 (values lower than 2.0 represent low sites). Equitability (E 0.22), since one species has prevailed: Cycloneda sanguinea (most frequent, dominating constant) MCOIH, as well each sub-systems. However, simplest installed vegetable (monoculture gardens) not favorable diversity, whereas polyculture leafy vegetables recorded greatest taxa ladybeetles, including that predate aphids attack [Coleomegilla maculata, Coleomegilla quadrifasciata, sanguinea, Eriopis connexa, Harmonia axyridis, Hippodamia convergens Hyperaspis (Hyperaspis) festiva]. sub-system gliricidia used produce fertilization biomass favored predominance C. comparison MCOIH. Spring season mostly favoring occurrence H. adults; dominant assemblage MCOIH; however, constant accessory.