ornatrix foram utilizadas as temperaturas de 18, 20, 22, 25, 28, 30 e 32✬, umidade relativa de 70 ± 20% e fotofase de 14 horas. Para a determinação das exigências térmicas de U. Foram criados insetos em dieta artificial à base de feijão e levedura de cerveja. Key words: Crotalaria, Rattlebox moth, rearing techniqueĮstudou-se a biologia de Utetheisa ornatrix em dieta artificial, visando a determinação das exigências térmicas dos diferentes estágios de desenvolvimento, numa tentativa de avaliar as regiões do estado de São Paulo em que a praga tem maiores condições de se tornar problema para Crotalaria spp.

Lower threshold temperatures (TT) and thermal constants (K) for the egg, larval and pupal stages were 12.7✬ and 51.2 GDD, 13.5✬ and 290.9 GDD, 13.8✬ and 108.4 GDD, respectively TT and K values for the biological cycle were 13.8✬ and 436.3 GDD. ornatrix thermal requirements were tested at 18, 20, 22, 25, 28, 30, and 32✬ 70☒0% RH, and 14-h photophase. The insects were reared on an artificial diet based on the white beans and yeast. The aim was to find out the thermal regions in the São Paulo state where the pest could develop on Crotalaria spp. IIEmbrapa Clima Temperado 96001-970 Pelotas - RS - BrasilĪ study on the biology of Utetheisa ornatrix reared on the artificial diet, was conducted to determine the thermal requirements in each development stage. IDepartamento de Entomologia, Fitopatologia e Zoologia Agrícola USP/ESALQ 13418-310 Piracicaba - SP - Brasil José Maurício Simões Bento I José Roberto Postali Parra I AGRICULTURE, AGRIBUSINESS AND BIOTECHNOLOGYīiology and thermal requirements of Utetheisa ornatrix (L.) (Lepidoptera: Arctiidae) reared on artificial dietĪndré Gustavo Corrêa Signoretti I Dori Edson Nava II, * *

Utethesia ornatrix