Citation
Sendoya-Corrales, Carlos Andrés and Pastrana-Sanchez, José Luis and Matabanchoy Solarte, Jesús Arvey and Bustillo Pardey, Álex Enrique and Rosero Guerrero, Miriam and Morales Rodríguez, Anuar (2024) Biology and population dynamics of adult Sagalassa valida Walker, 1856 (Lepidoptera: Brachodidae), the oil palm root borer in Colombia. Journal of Oil Palm Research (Malaysia), 36. pp. 393-408. ISSN 2811-4701
Abstract
Sagalassa valida is a pest of economic importance because the larval stage feeds on the root system of the oil palm. In this investigation, the life cycle, the population dynamics of the adults, and their natural enemies were determined through biweekly samplings for 43 months in two lots of oil palm; located in the Central and Western Zone of Colombia. It was determined that the life cycle of S. valida is 64.1 days on average; the duration of each stage was: Egg 9.2 ± 0.5 days, larva 38.1 ± 4.9 days (five instars), prepupa 2.9 ± 1.1 days, pupa 13.9 ± 1.1 days and adult 12.3 ± 4.3 days. The adults of S. valida were present in the two zones during the study; using Spearman’s correlation index, it was determined that in the Central Zone, the precipitation presented a direct and significant correlation with the variables: number of males (ρ = 0.24; P = 0.023) and the total number of adults (ρ = 0.21; P = 0.044). Ten natural enemies of S. valida and 14 weeds were identified in the study areas. This information is essential to implement an efficient management strategy for S. valida in plantations.
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Abstract
Sagalassa valida is a pest of economic importance because the larval stage feeds on the root system of the oil palm. In this investigation, the life cycle, the population dynamics of the adults, and their natural enemies were determined through biweekly samplings for 43 months in two lots of oil palm; located in the Central and Western Zone of Colombia. It was determined that the life cycle of S. valida is 64.1 days on average; the duration of each stage was: Egg 9.2 ± 0.5 days, larva 38.1 ± 4.9 days (five instars), prepupa 2.9 ± 1.1 days, pupa 13.9 ± 1.1 days and adult 12.3 ± 4.3 days. The adults of S. valida were present in the two zones during the study; using Spearman’s correlation index, it was determined that in the Central Zone, the precipitation presented a direct and significant correlation with the variables: number of males (ρ = 0.24; P = 0.023) and the total number of adults (ρ = 0.21; P = 0.044). Ten natural enemies of S. valida and 14 weeds were identified in the study areas. This information is essential to implement an efficient management strategy for S. valida in plantations.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | oil palms |
| AGROVOC Term: | population dynamics |
| AGROVOC Term: | life cycle |
| AGROVOC Term: | sampling |
| AGROVOC Term: | natural enemies |
| AGROVOC Term: | weeds |
| AGROVOC Term: | Insecta |
| AGROVOC Term: | larvae |
| AGROVOC Term: | pupae |
| Geographical Term: | Colombia |
| Depositing User: | Nor Hasnita Abdul Samat |
| Date Deposited: | 07 May 2026 01:48 |
| Last Modified: | 07 May 2026 01:48 |
| URI: | http://webagris.upm.edu.my/id/eprint/3395 |
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