Biological aspects of Argyrotaenia sphaleropa (Meyrick, 1909) (Lepidoptera: Tortricidae) in artificial diets with different protein sources

Ciência Rural

Botton, Marcos³  Loeck, Alci Enimar²  Manfredi-Coimbra, Silvana¹  Garcia, Mauro Silveira²  Foresti, Josemar² 

[1] Universidade Federal de Pelotas, Pelotas;Universidade Federal de Pelotas;Empresa Brasileira de Pesquisa Agropecuária

关键词: artificial diet;    fertility life table;   

DOI  :  10.1590/S0103-84782005000200002

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Biology aspects of Argyrotaenia sphaleropa Meyrick fed on artificial diets with different protein sources were studied: D1-white bean, wheat germ, soybean protein and casein; D2-common bean and yeast and D3-common bean, yeast and wheat germ, evaluating the duration and viability of all developmental stages (egg, larval, prepupa and pupa) and of the total cycle (egg-adult), sex ratio, pupa weight, fecundity, longevity and life table of fertility. Tests were conducted in the laboratory at 25±1°C, 65±10% RH and 14h of photophase. Duration of the egg stage was 6.6 days on all diets. The longest duration of larval and prepupal stages on D1 and pupal stages on D2, resulting in a longer duration of the total cycle on these two diets (30,9 and 30,8 days). The total viability was higher than 62% on all diets, and there was no statistical difference among the treatments. The number of instars was four or five on all treatments. The lowest fecundity was observed in D1. Based on the fertility life table, D3 was the most suitable diet for rearing A. sphaleropa, due to the lowest development time (T), the highest finite increasing rate (l), and total viability exceeding 75%.

【 授权许可】

CC BY-NC