Monitoring for Oriental Fruit Moth
1
with Synthetic Sex Pheromone

Phillips, J. H. H.

doi:10.1093/ee/2.6.1039

Cited by 23 publications

(14 citation statements)

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“…A elucidação do feromônio sexual da espécie, que intermedeia a atração entre sexos, permitiu o desenvolvimento da técnica de monitoramento de adultos com armadilhas, e assim a realização de vários estudos de flutuação populacional (Phillips, 1973;Forno et al, 1975;Silveira Neto et al, 1981). Entretanto, uma das questões não elucidadas é a periodicidade de ocorrência de G. molesta nos pomares ao longo dos anos, importante no estabelecimento de ajustes e modelos matemáticos para previsão de eventos relacionados à flutuação populacional do inseto.…”

Section: Population Dynamics Of Oriental Fruit Moth In Peach and Plumunclassified

Dinâmica populacional da mariposa oriental em pomares de pessegueiro e ameixeira

Hickel

Souza

et al. 2003

Pesq. agropec. bras.

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Resumo O objetivo deste trabalho foi estudar a dinâmica populacional da mariposa oriental [Grapholita molesta (Busk)] em pomares de pessegueiro e ameixeira. Os adultos foram monitorados em dois pomares de pessegueiro e um de ameixeira por cinco anos. Séries temporais equivalentes de temperaturas máximas e mínimas foram correlacionadas aos dados de flutuação populacional para se aferir a correspondência entre a ocorrência da praga e as flutuações de temperatura. A análise de Fourier das séries temporais das armadilhas de coleta de mariposas revelou dinâmicas cíclicas, com período principal médio de 53,91 semanas. Um período menor médio, de 7,45 semanas, também ficou evidente e se aproxima do tempo médio de geração do inseto. A análise do espectro de potência das séries temporais, com e sem periodicidade, revelou que a dinâmica populacional de G. molesta possui um componente regular, caracterizado pelos períodos observados, e outro componente irregular, reminiscente de ruí-do 1/f, caracterizado pelas variações de amplitude, aparentemente irregulares, na ocorrência do inseto. A combinação desses dois componentes ocasiona um processo com domínio de baixas freqüências, próprio das dinâmicas periódicas ruidosas. Os ciclos de aparecimento da praga ocorrem em fase com os ciclos de flutuação de temperaturas máximas e mínimas.Termos para indexação: Grapholita molesta, Prunus, população de inseto, inseto nocivo, praga das plantas. Population dynamics of oriental fruit moth in peach and plum orchardsAbstract The objective of this work was to study the populational dynamics of oriental fruit moth [Grapholita molesta (Busk)] in peach and plum orchards. Adults were monitored in two peach and one plum orchards for five years. Equivalent time series of maximum and minimum temperatures were correlated to the population fluctuation data to verify the correspondence between pest occurrence and temperature fluctuations. A Fourier analysis of the moth time series revealed cyclic dynamics, with a main average period of 53.91 weeks. Another mean short period of 7.45 weeks was also obtained, and approximates to the mean pest generation time. The power spectrum analysis of the time series, with and without the main periodicity, revealed that G. molesta population dynamics has one regular component characterized by the observed periods, and one irregular component, reminiscent of 1/f noise, characterized by the observed apparently irregular amplitude oscillations in the insect occurrence. The combination of components generate a process in the low frequency domain, consistent with noisy periodic dynamic. The pest cycles occurred in phase with the maximum and minimum temperature fluctuations.Index terms: Grapholita molesta, Prunus, insect population, pest insects, pests of plants.(1) Aceito para publicação em 26 de novembro de 2002.

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Section: Population Dynamics Of Oriental Fruit Moth In Peach and Plumunclassified

Dinâmica populacional da mariposa oriental em pomares de pessegueiro e ameixeira

Hickel

Souza

et al. 2003

Pesq. agropec. bras.

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“…Efficient monitoring of adult C. molesta populations represents an enormous challenge for pest managers, given its ability to reproduce in different host-plant species and in various types of host-plant tissue (e.g., shoots and fruit) (Rothschild & Vickers, 1991;Hughes & Dorn, 2002). Male moths are monitored routinely using pheromone-baited traps (Phillips, 1973;Rothschild et al, 1984;Kovanci & Walgenbach, 2005). Female monitoring is highly desirable as females are directly responsible for infestations and populations of C. molesta contain females capable of relatively long flights (Hughes & Dorn, 2002).…”

Section: Introductionmentioning

confidence: 99%

Synergism between aromatic compounds and green leaf volatiles derived from the host plant underlies female attraction in the oriental fruit moth

Piñero

Dorn²

2007

Entomologia Exp Applicata

103

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Blends of volatile compounds emitted by host plants are known to mediate the attraction of gravid female herbivores to oviposition sites, but the role of individual odor components is still little understood. We characterized the olfactory response of mated female Cydia (Grapholita) molesta (Busck) (Lepidoptera: Tortricidae) to synthetic mixtures of compounds emitted by peach shoot, a key host plant of this herbivore, and investigated the role of important constituents of bioactive mixtures in moth attraction. Relative ratios of constituents of the mixtures corresponded to the natural ratio of volatile compounds collected in the plant's headspace. A significant attractant effect was found for a comparatively complex 10-compound mixture that included four green leaf volatiles [( Z )-3-hexen-1-ol, 1-hexanol, ( E )-2-hexenal, and ( Z )-3-hexen-1-yl acetate], five aromatics (benzaldehyde, methyl salicylate, methyl benzoate, benzonitrile, and phenylacetonitrile), and a carboxylic acid (valeric acid). Using a subtraction approach, the number of compounds was progressively decreased, resulting in a bioactive 5-compound mixture composed of two constituents, green leaf volatiles and aromatic compounds. Further evaluations revealed that benzaldehyde and benzonitrile must be present in association with three distinct green leaf volatiles to produce an attractant effect on the female moths. This 5-compound mixture was as attractive as natural peach shoot volatiles, which are known to comprise over 20 compounds. Results are discussed in light of the documented synergistic effect between the three general green leaf volatiles and the two specific aromatic compounds.

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“…The integrated pest management program for the control of insects and mites introduced to fruit growers in Ontario, Canada in the mid‐1970s was successful for ca 20 years. The program used pheromone‐trap‐capture data to time applications of organophosphorus (OP) insecticides (phosmet, azinphos‐methyl) to control the hatch of first instar larvae of the Oriental fruit moth, Grapholita molesta (Busck) 1. Phosmet and azinphos‐methyl were used in this program because the native predator Amblyseius fallacis (Garman), which maintained European red mite, Panonychus ulmi (Koch) populations below economic damage thresholds, had developed resistance to these compounds 2, 3.…”

Section: Introductionmentioning

confidence: 99%

Management of insecticide resistance in Oriental fruit moth (Grapholita molesta; Lepidoptera: Tortricidae) populations from Ontario

Kanga

Pree

Lier

et al. 2003

Pest Management Science

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The development of resistance in the Oriental fruit moth, Grapholita molesta (Busck) to organophosphorus (OP) insecticides (azinphos-methyl and phosmet) is a serious threat to the tender fruit industry in Ontario (50% crop losses in 1994). Resistance to carbamate insecticides and increased survival of field-collected moths at diagnostic concentrations of pyrethroids were widespread. As a result, four different treatment regimes were tested to manage resistance in G molesta, and the changes in resistance frequencies under each treatment regime were monitored from 1996 to 1999. The data indicated that the levels of resistance were significantly influenced by the various treatment regimes. The seasonal pattern of resistance was similar for all treatment regimes, in that resistance peaked in mid-season and declined in the late season. Levels of resistance in G molesta to OPs decreased from 55% to 14% and that to pyrethroids declined from 30% to 10% from 1996 to 1999 under a treatment regime consisting of endosulfan-organophosphate-pyrethroid rotation. Similarly, under a treatment regime implemented in commercial orchards (organophosphate-pyrethroid rotation), resistance to OP insecticides declined from 50% to 12% and resistance to pyrethroids evolved to around 16%. The overall data indicated that resistance was unstable; a strategy based on rotation of insecticides by class for each generation of G molesta was successful in managing resistance to both OP and pyrethroid insecticides. The rotational strategy has been widely adopted by growers and is applied to ca 85% of the acreage.

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Monitoring for Oriental Fruit Moth 1 with Synthetic Sex Pheromone

Cited by 23 publications

References 0 publications

Dinâmica populacional da mariposa oriental em pomares de pessegueiro e ameixeira

Dinâmica populacional da mariposa oriental em pomares de pessegueiro e ameixeira

Synergism between aromatic compounds and green leaf volatiles derived from the host plant underlies female attraction in the oriental fruit moth

Management of insecticide resistance in Oriental fruit moth (Grapholita molesta; Lepidoptera: Tortricidae) populations from Ontario

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