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- Title
Aspectos de la biología de Typophorus nigritus F. (Coleoptera: Chrysomelidae) en el boniato (Ipomoea batatas (L.) Lam.).
- Authors
Castellón Valdés, María del Carmen; García Hernández, Yanisledy; Fuentes Vega, Heliodoro
- Abstract
The study was conducted in two years periods (November / 2005-February / 2006) and (from May to July / 2006), at the Entomology Laboratory of the Research Institute of Tropical Root and Tuber Crops (INIVIT) Santo Domingo municipality, Villa Clara province. This work is aimed at assessing the biological cycle and aspects related with oviposition and longevity of T. nigritus. Data related to all assessments were processed using Mann-Whitney non-parametric test. Average temperatures of 28.5 ±1.2°C and 23.0 ±2.2°C resulted in life cycles of 64 and 97 days respectively. Environmental temperature also influenced insect oviposition. With temperatures of 28.2 ±1.6°C, oviposition onset was in fewer days, females did not oviposite in a higher day number and after 32.45 days, 657 eggs were counted and more than 90% were fertile. Female needs to perform only a copula then continue ovipositing for the rest of its life. Regarding longevity of independent adults during the evaluated period, females showed greater longevity than males with significant differences. The previous results on the biology of T. nigritus are the first known in Cuba on this species as sweet potato pest (I. batatas) which contributes to insect knowledge and are considered an indispensable management tool.
- Subjects
CUBA; SWEET potato diseases &; pests; CHRYSOMELIDAE; TUBER crops; BEETLES; AGRICULTURE; REPRODUCTION
- Publication
Revista Centro Agricola, 2012, Vol 39, Issue 1, p33
- ISSN
0253-5785
- Publication type
Article