The effect of parasitism on the population dynamics of the macadamia nutborer Gymnandrosoma aurantianum (Lepidoptera: Tortricidae)
Biological control on crop infesting insects represent an useful method in modern agriculture. A search for parasitoids of the macadamia nutborer was carried out during a three year study, and their effect on the population fluctuation of the borer was determined. An egg parasitoid belonging to the...
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Vicerractoría Investigación
2009-12-01
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| Series: | Revista de Biología Tropical |
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| Online Access: | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442009000400027 |
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| author | Helga Blanco-Metzler Allan D Watt Derek Cosens |
| author_facet | Helga Blanco-Metzler Allan D Watt Derek Cosens |
| author_sort | Helga Blanco-Metzler |
| collection | DOAJ |
| description | Biological control on crop infesting insects represent an useful method in modern agriculture. A search for parasitoids of the macadamia nutborer was carried out during a three year study, and their effect on the population fluctuation of the borer was determined. An egg parasitoid belonging to the family Trichogrammatidae and four larval parasitoids, Microgastrine I, Microgastrine II, Ascogaster sp. (Hymeoptera: Braconidae) and Pristomerus sp. (Hymeoptera: Ichneumonidae) were recovered. Parasitism percentage by Microgastrine I was 15% in 1991, 16% in 1992 and 4% in 1993; Microgastrine II was not collected in 1991, but accounted for a 4.3% of parasitism in 1992 and 3.7% in 1993; Ascogaster sp. was registered since 1992 with 3% parasitism (29% in 1993). We found an inverse relationship between total parasitism and the mean of damaged nuts. Parasitoids play an important role in the reduction of the G. aurantianum population. Rev. Biol. Trop. 57 (4): 1245-1252. Epub 2009 December 01.<br>Durante tres años se realizó una búsqueda de los enemigos naturales del barrenador de la nuez de macadamia y se determinó el efecto sobre su población. Se registró un parasitoide de huevo perteneciente a la familia Trichogrammatidae y cuatro parasitoides de larva, Microgastrine I, Microgastrine II, y Ascogaster sp. (Hym: Braconidae) y Pristomerus (Hym: Ichneumonidae). El porcentaje de parasitismo por Microgastrine I fue del 15% en 1991, 16% en 1992 y 4% en 1993; Microgastrine II no se registró en 1991, pero alcanzó un 4.3% de parasitismo en 1992 y un 3.7% en 1993; Ascogaster sp. se registró a partir de 1992 con un 3% de parasitismo y con un 29% en 1993. Se encontró una relación inversa entre el parasitismo total y el promedio de nueces dañadas. Los resultados indican que los parasitoides juegan un papel importante en la disminución de la población de G. aurantianum. |
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| format | Article |
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| institution | Directory Open Access Journal |
| issn | 0034-7744 2215-2075 |
| language | English |
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| publishDate | 2009-12-01 |
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| spelling | doaj.art-c6ff578690854770b2cc75610fd53b0c2023-09-02T22:46:21ZengVicerractoría InvestigaciónRevista de Biología Tropical0034-77442215-20752009-12-0157412451252The effect of parasitism on the population dynamics of the macadamia nutborer Gymnandrosoma aurantianum (Lepidoptera: Tortricidae)Helga Blanco-MetzlerAllan D WattDerek CosensBiological control on crop infesting insects represent an useful method in modern agriculture. A search for parasitoids of the macadamia nutborer was carried out during a three year study, and their effect on the population fluctuation of the borer was determined. An egg parasitoid belonging to the family Trichogrammatidae and four larval parasitoids, Microgastrine I, Microgastrine II, Ascogaster sp. (Hymeoptera: Braconidae) and Pristomerus sp. (Hymeoptera: Ichneumonidae) were recovered. Parasitism percentage by Microgastrine I was 15% in 1991, 16% in 1992 and 4% in 1993; Microgastrine II was not collected in 1991, but accounted for a 4.3% of parasitism in 1992 and 3.7% in 1993; Ascogaster sp. was registered since 1992 with 3% parasitism (29% in 1993). We found an inverse relationship between total parasitism and the mean of damaged nuts. Parasitoids play an important role in the reduction of the G. aurantianum population. Rev. Biol. Trop. 57 (4): 1245-1252. Epub 2009 December 01.<br>Durante tres años se realizó una búsqueda de los enemigos naturales del barrenador de la nuez de macadamia y se determinó el efecto sobre su población. Se registró un parasitoide de huevo perteneciente a la familia Trichogrammatidae y cuatro parasitoides de larva, Microgastrine I, Microgastrine II, y Ascogaster sp. (Hym: Braconidae) y Pristomerus (Hym: Ichneumonidae). El porcentaje de parasitismo por Microgastrine I fue del 15% en 1991, 16% en 1992 y 4% en 1993; Microgastrine II no se registró en 1991, pero alcanzó un 4.3% de parasitismo en 1992 y un 3.7% en 1993; Ascogaster sp. se registró a partir de 1992 con un 3% de parasitismo y con un 29% en 1993. Se encontró una relación inversa entre el parasitismo total y el promedio de nueces dañadas. Los resultados indican que los parasitoides juegan un papel importante en la disminución de la población de G. aurantianum.http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442009000400027Gymnandrosoma aurantianum (Ecdytolopha torticornis)control biológicoparasitoidesmacadamiaCosta RicaGymnandrosoma aurantianum (Ecdytolopha torticornis)biological controlparasitoidsmacadamiaCosta Rica |
| spellingShingle | Helga Blanco-Metzler Allan D Watt Derek Cosens The effect of parasitism on the population dynamics of the macadamia nutborer Gymnandrosoma aurantianum (Lepidoptera: Tortricidae) Revista de Biología Tropical Gymnandrosoma aurantianum (Ecdytolopha torticornis) control biológico parasitoides macadamia Costa Rica Gymnandrosoma aurantianum (Ecdytolopha torticornis) biological control parasitoids macadamia Costa Rica |
| title | The effect of parasitism on the population dynamics of the macadamia nutborer Gymnandrosoma aurantianum (Lepidoptera: Tortricidae) |
| title_full | The effect of parasitism on the population dynamics of the macadamia nutborer Gymnandrosoma aurantianum (Lepidoptera: Tortricidae) |
| title_fullStr | The effect of parasitism on the population dynamics of the macadamia nutborer Gymnandrosoma aurantianum (Lepidoptera: Tortricidae) |
| title_full_unstemmed | The effect of parasitism on the population dynamics of the macadamia nutborer Gymnandrosoma aurantianum (Lepidoptera: Tortricidae) |
| title_short | The effect of parasitism on the population dynamics of the macadamia nutborer Gymnandrosoma aurantianum (Lepidoptera: Tortricidae) |
| title_sort | effect of parasitism on the population dynamics of the macadamia nutborer gymnandrosoma aurantianum lepidoptera tortricidae |
| topic | Gymnandrosoma aurantianum (Ecdytolopha torticornis) control biológico parasitoides macadamia Costa Rica Gymnandrosoma aurantianum (Ecdytolopha torticornis) biological control parasitoids macadamia Costa Rica |
| url | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442009000400027 |
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