Monitoramento de Ecdytolopha aurantiana (Lima) em Laranjeira Valência com Feromônio Sexual

Yamamoto, Pedro Takao; Molina, Juliana; Felippe, Marcos R.; Nociti, Letícia Ane Sizuki

doi:10.14295/ba.v1.0.42

Cited by 3 publications

(3 citation statements)

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“…a baixa incidência de frutos atacados nas avaliações de ambos os anos pode estar relacionada aos picos populacionais da espécie nos pomares, pois, segundo Prates (1992), o ataque de G. aurantiana é geralmente mais intenso no período chuvoso, entre fevereiro e março, uma vez que a umidade relativa e a temperatura são maiores nestes meses. assim como observado neste trabalho, Yamamoto et al (2006) constataram baixo número de frutos atacados em relação ao total de frutos produzidos pelas plantas de laranjeira 'valência', e este fato foi atribuído à baixa umidade relativa da região durante as amostragens.…”

Section: Resultsunclassified

DISTRIBUIÇÃO ESPACIAL DO BICHO-FURÃO,Gymnandrosoma aurantiana (Lima, 1927)(LEPIDOPTERA: TORTRICIDAE),EM CITROS UTILIZANDO GEOESTATÍSTICA

et al. 2015

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RESUmO -o bicho-furão, Gymnandrosoma aurantiana (lima, 1927), é uma das principais pragas da citricultura brasileira, pois os frutos atacados pelas lagartas tornam-se inviáveis para o consumo in natura e processamento industrial. objetivou-se estudar a distribuição espacial dos danos causados por G. aurantiana utilizando geoestatística. Para tanto, foi conduzido um experimento em um pomar de laranjeira-doce da variedade 'valência', enxertado sobre limoeiro 'Cravo', localizado em Taquaritinga-SP, Brasil. a área foi dividida em 88 parcelas, sendo cada parcela formada por 30 plantas dispostas em três linhas de 10 plantas, e em seguida foi obtido o número de frutos atacados para os anos de 2007 e 2008. a distribuição dos frutos atacados pela praga foi agregada ao longo das avaliações, com variância maior que a média para todas as amostragens. os dados apresentaram ajuste adequado segundo o modelo esférico, e o alcance da dependência espacial (a) variou entre 40,66 e 135,40 m. a estimativa de frutos atacados nas áreas não amostradas foi obtida pela krigagem, e os principais focos da praga foram observados nas parcelas próximas aos limites da área experimental. Termos para indexação: krigagem, mariposa, reboleira, semivariograma. SPATIAL DISTRIBUTION OF CITRUS FRUIT BORER, Gymnandrosoma aurantiana (LImA, 1927) (LEPIDOPTERA: TORTRICIDAE), ON CITRUS By USING GEOSTATISTICSABSTRACT -The citrus fruit borer, Gymnandrosoma aurantiana (lima, 1927), is one of the most important pests of citrus in Brazil, mainly because the larvae render the fruit useless for both fresh consumption and industrial processing. it was aimed to study the spatial distribution of fruits attacked by G. aurantiana using geostatistics. Thus, an experiment was carried out in a 'valencia' sweet orange orchard, located in the municipality of Taquaritinga, state of São Paulo, Brazil. The experimental area was divided into 88 sampling units, consisting of 30 plants (three rows x ten plants), and then it was recorded the number of fruits attacked by G. aurantiana in 2007 and 2008. The spatial distribution of attacked fruits was aggregated for both sampling periods, and the variance was greater than the mean for all samplings. The data showed proper adjustment to the spherical model, and the range of spatial dependence (a) varied from 40.66 to 135.40 m. kriging was used in order to estimate the attacked fruits at not sampled sites, and it was shown that the damage was mainly done at the sampling units that were near the border of the experimental field.

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Section: Resultsunclassified

DISTRIBUIÇÃO ESPACIAL DO BICHO-FURÃO,Gymnandrosoma aurantiana (Lima, 1927)(LEPIDOPTERA: TORTRICIDAE),EM CITROS UTILIZANDO GEOESTATÍSTICA

et al. 2015

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“…In the case of G. aurantianum, only the major component had been evaluated for capture of males in traps in macadamia orchards in Costa Rica (Chamberlain et al 2003) and Guatemala (Navas-Franco 2019), whereas in Brazil, the sex pheromone is composed of (E)-8-dodecenyl acetate and (E)-8-dodecenol (Leal et al 2001). The binary mixture attracts G. aurantianum males in citrus plantations (Leal et al 2001) and has been used as a commercial pheromone (Ferocitrus Furão, Fuji Flavor Co., Tokyo, Japan) in field testing to monitor this species in citrus (Carvalho 2003;Parra et al 2004;Yamamoto et al 2006). However, this binary mixture captured fewer G. aurantianum males than the single compound (E)-8-dodecenyl acetate did in macadamia.…”

Section: Discussionmentioning

confidence: 99%

Male attraction of Gymnandrosoma aurantianum (Lepidoptera: Tortricidae), from Guatemala, to its sex pheromone major component is not affected by the addition of secondary components

et al. 2022

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The macadamia nut borer, Gymnandrosoma aurantianum Lima (Lepidoptera: Tortricidae), is the main pest of Macadamia integrifolia Maiden and Betche (Proteaceae) in Central America. We identified five compounds in female sex pheromone gland extracts, (E)-8-dodecenyl acetate, tetradecyl acetate, dodecyl acetate, (E)-8-dodecenol, and (Z)-8-dodecenyl acetate, in a ratio of 100:44.9:33.4:6.5:1.2, respectively, from Guatemalan populations of this insect. All compounds except tetradecyl acetate elicited electroantennography responses in two- to five-day-old males. In field tests, traps baited with single compounds did not capture males, except for the major component (E)-8-dodecenyl acetate. Mixtures of (E)-8-dodecenyl acetate with secondary components were active in field tests, but the number of G. aurantianum males trapped did not differ between these mixtures and (E)-8-dodecenyl acetate alone. Doses of more than 1 mg (1.5 or 2 mg) of the major component did not significantly increase capture. The gradual loss of the amount of (E)-8-dodecenyl acetate in rubber septa under field conditions indicates that septa should be renewed every four weeks. In conclusion, the addition of secondary components to the major component of the sex pheromone gland contents does not improve capture of G. aurantianum males. Our results demonstrate that 1 mg of (E)-8-dodecenyl acetate could be used as an attractant for monitoring populations of this moth.

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“…15–19 mm long (mature larvae). The body is pale yellow and the head pale yellow to pale orange with a red‐brown patch (Adamski & Brown, 2001; Yamamoto et al, 2006 citing Prates & Pinto, 1988, 1991). There are four to five larval instars (Blanco‐Metzler, 1994; Gómez Torres, 2005 citing Garcia, 1998).…”

Section: Detection and Identificationmentioning

confidence: 99%

EPPO Datasheet: Gymnandrosoma aurantianum

2022

EPPO Bulletin

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In addition to the name Gymnandrosoma aurantianum, the synonyms Ecdytolopha aurantianum and E. torticornis are widely used in the literature (EPPO, 2020). Morphological and host differences were observed between the specimens in Costa Rica (E. torticornis) and G. aurantianum in other parts of its range. For example, the pest has only been reported infesting macadamia in Costa Rica, despite the fact that other known hosts are present in areas where the pest occurs (Blanco-Metzler, 1994; Blanco-Metzler, pers. comm. 2019). It is not known if these differences are biological and ecological or relate to the existence of a complex of species (EPPO, 2020). To date (2021-11), E. torticornis is treated as a synonym of G. aurantianum, as formalized in Adamski and Brown (2001). | HO ST SGymnandrosoma aurantianum has been recorded on a wide range of woody or herbaceous fruit plants, cultivated or in the wild, from various families. Many Citrus species are confirmed hosts. When impact is mentioned in the recent literature, it relates mainly to orange (Citrus sinensis), mandarin (Citrus reticulata), macadamia (Macadamia integrifolia), cocoa (Theobroma cacao) and sacha inchi (Plukenetia volubilis). It is worth noting that some hosts are only recorded in older literature and do not appear in recent literature on outbreaks (EPPO, 2020).Several authors make the hypothesis that G. aurantianum has passed from native hosts to exotic cultivated hosts, such as macadamia in Costa Rica (Blanco-Metzler, 1994). Owing to the wide host range of G. aurantianum and the fact that it has passed on to new hosts in the Americas, it is not excluded that it may be able to attack other fruit plants if the fruit is suitable for its development, including Citrus species that are currently not recorded as hosts (EPPO, 2020).

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Monitoramento de Ecdytolopha aurantiana (Lima) em Laranjeira Valência com Feromônio Sexual

Cited by 3 publications

References 5 publications

DISTRIBUIÇÃO ESPACIAL DO BICHO-FURÃO,Gymnandrosoma aurantiana (Lima, 1927)(LEPIDOPTERA: TORTRICIDAE),EM CITROS UTILIZANDO GEOESTATÍSTICA

DISTRIBUIÇÃO ESPACIAL DO BICHO-FURÃO,Gymnandrosoma aurantiana (Lima, 1927)(LEPIDOPTERA: TORTRICIDAE),EM CITROS UTILIZANDO GEOESTATÍSTICA

Male attraction of Gymnandrosoma aurantianum (Lepidoptera: Tortricidae), from Guatemala, to its sex pheromone major component is not affected by the addition of secondary components

EPPO Datasheet: Gymnandrosoma aurantianum

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