Laboratory rearing of Forcipomyia spp. midges (Diptera, Ceratopogonidae), 2: Determination of the reproductive and biotic potentials, preliminary tests
The purpose of this work was to determine the reproductive and biotic potentials of the following species: Forcipomyia (Euprojoannisia) spatulifera Saunders, F. (E.) blantoni Soria and Bystrak, f. (F.) genualis (Loew), F. (F.) poulaineae Macfie, F. vic. Lepidohelea sp. 1 and F. (Microhelea) fuliginosa (Meigen) in laboratory conditions. Saunders' method for rearing midges was adapted to the present work. The methods to measure the reproductive and biotic potentials were similar to those used for other insects according to literature. Results indicated high values of reproductive potential for the non-pollinating species F. genualis, F. poulaineae an F. vic. Lepidohelea sp. 1. The reproductive potential values for the pollinating species F. (E) blantoni (34.87 x 10 exponent 8 midges/year) and F. (E.) spatulifera (22.43 x 10 exponent 7) were considered suficient to forecast good possibilities of mass rearing for colonization and/or inundation purposes: in field conditions. Numerica values of biotic potential were not yet determined because of the lack of quantification of the levels of population suppression caused by the predators parasites and pathogens in natural and laboratory conditions. It was concluded that mass rearing of spatulifera, blantoni and other Forcipomyia midges is a very promising technique due to the quick reproductive capacity observed in this research
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| Format: | biblioteca |
| Published: |
1978
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| Subjects: | THEOBROMA CACAO, FORCIPOMYIA, POLINIZADORES, CICLO VITAL, COMPORTAMIENTO SEXUAL, EVOLUCION DE LA POBLACION, DAÑOS, FACTORES AMBIENTALES, CERATOPOGONIDAE, |
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| Summary: | The purpose of this work was to determine the reproductive and biotic potentials of the following species: Forcipomyia (Euprojoannisia) spatulifera Saunders, F. (E.) blantoni Soria and Bystrak, f. (F.) genualis (Loew), F. (F.) poulaineae Macfie, F. vic. Lepidohelea sp. 1 and F. (Microhelea) fuliginosa (Meigen) in laboratory conditions. Saunders' method for rearing midges was adapted to the present work. The methods to measure the reproductive and biotic potentials were similar to those used for other insects according to literature. Results indicated high values of reproductive potential for the non-pollinating species F. genualis, F. poulaineae an F. vic. Lepidohelea sp. 1. The reproductive potential values for the pollinating species F. (E) blantoni (34.87 x 10 exponent 8 midges/year) and F. (E.) spatulifera (22.43 x 10 exponent 7) were considered suficient to forecast good possibilities of mass rearing for colonization and/or inundation purposes: in field conditions. Numerica values of biotic potential were not yet determined because of the lack of quantification of the levels of population suppression caused by the predators parasites and pathogens in natural and laboratory conditions. It was concluded that mass rearing of spatulifera, blantoni and other Forcipomyia midges is a very promising technique due to the quick reproductive capacity observed in this research |
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