Population dynamics of the coffee berry borer Hypothenemus hampei (Ferr.) (Coleoptera: Scolytidae) in Lavras county, Minas Gerais State
The population growth of coffee berry borer Hypothenemus hampei (Ferrari, 1867) in a coffee plantation (Coffea arabica), located in Lavras county, Minas Gerais State, Brazil, was evaluated from January 1997 to June 1997. The objective of this research was to study the population dynamics of this borer, during one season, in the coffee plantation. A total of 1500 m2 of a coffee crop with the Catuai Amarelo cultivar were evaluated. The coffee fruits were collected monthly and examined for the presenceof adults and immature stages (eggs, larvae and pupae) of H. hampei and its parasitoids. In another coffee plantation area, located in Ijaci-MG and cultivated with Mundo Novo, Catuai Vermelho and Catuai Amarelo cultivars, one sampling was made at harvesttime in order to determine the percentage of fruits damaged by coffee berry borer damaged per tree at different maturation stages. During the season, parasitoids were not found in association with H. hampei. Rainfall was possibly the factor which contributed to the low coffee berry borer population in the area. In the second trial area, the coffee berry borer showed preference for red fruits rather than yellow ones.
| Main Authors: | , , , , |
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| Format: | biblioteca |
| Published: |
2000
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| Subjects: | COFFEA, COFFEA ARABICA, HYPOTHENEMUS HAMPEI, COLEOPTERA, INSECTOS DAÑINOS, PLAGAS DE PLANTAS, CAFE, VARIEDADES, DINAMICA DE POBLACIONES, ENTOMOLOGIA, MINAS GERAIS, BRASIL, |
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