Biology of Cephaloleia vagelineata Pic. (Coleoptera: Chrysomelidae) Pest of the Oil Palm in Colombia
The oil palm scraper-leaf beetle, Cephaloleia vagelineata Pic. (Coleoptera: Chrysomelidae), is a common oil palm pest in the northern and central oil palm producing zones of Colombia. Information about the biology and behavior of this insect is unknown. Therefore, the life cycle of C. vagelineata was studied under laboratory conditions (28 ° C, 80% RH), and its behavior and natural enemies were observed in oil palm plantations. Findings show that the life cycle of C. vagelineata is 130.4 days on average. The duration of developmental stages of C. vagelineata were as follows: egg 6.6 days, larva 78.4 days, pupa 14.4 days, adult 31 days. Adults of C. vagelineata are commonly found in the arrows of oil palms, where they copulate and feed. When disturbed they fall off the leaves or fly towards another palm tree. It was also found that their populations are larger in dry season, and that females lay their eggs individually at the bases of the petioles. Under field conditions adults of C. vagelineata were found infected by Lecanicillium lecanii and Metarhizium anisopliae. These results will allow to carry out research on population dynamics of C. vagelineata and to develop biological control strategies in order to regulate populations of this pest in oil palm plantations.
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Fedepalma
2018
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| Online Access: | https://publicaciones.fedepalma.org/index.php/palmas/article/view/12599 |
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