Female sex pheromones of Chilo spp. (Lepidoptera: Pyralidae) and their development in pest control applications

Beevor, P. S.; David, H.; Jones, Owen

doi:10.1017/s1742758400021354

Cited by 18 publications

(21 citation statements)

References 16 publications

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“…La feromona sexual de la hembra de C. suppressalis, fue identificada por primera vez como una mezcla de los aldehídos (Z)-11-hexadecenal (Z11C16al) y (Z)-13-octadecenal (Z13C18al) (Nesbitt et al, 1975;Ohta et al, 1976), pero una vez probada su eficacia para atraer a los machos, esta mezcla resultaba menos eficaz que la atracción que ejercían las hembras vírgenes vivas (Beevor et al, 1990;Tatsuki, 1990). Este hecho hizo reexaminar la composición de la feromona, sugiriendo la presencia en la mezcla de otros componentes sinérgicos y encontrando cuatro compuestos adicionales a los dos iniciales, que fueron:…”

Section: Feromonasunclassified

“…Tras diversos ensayos, se determinó que de estos 4 nuevos compuestos identificados, sólo el Z9C16al, isómero de posición del doble enlace del Z11C16al, era el que tenía actividad feromonal (Beevor et al, 1990;Tatsuki, 1990). La mezcla de este último compuesto con los Z11C16al y Z13C18al aumentó enormemente la eficacia de atracción, y desde entonces ha sido la base para el desarrollo de las formulaciones comercializadas (Casagrande, 1993).…”

Section: Feromonasunclassified

“…En España, de 1987 a 1990 se realizaron diversos experimentos en la zona del Parque Natural de la Albufera de Valencia para diseñar la estrategia de confusión sexual más adecuada (CAPA, 1988;Beevor et al, 1990;Serrano et al, 1998;Batalla, 1999a), reduciendo progresivamente el número de difusores por ha, hasta llegar un marco de colocación de 10×10, con los emisores de PVC, Selibate®CS (Agrisense BCS Ltd., Pontypridd, UK) (Casagrande, 1993 …”

Section: Feromonasunclassified

“…It also occurs in Iran and the southern countries of the former USSR; in Europe it is a pest mainly in Spain. The larvae of rice stem borers feed within plant stems causing severe crop losses in many cases (Beevor et al, 1990;Batalla, 1999a). Chilo spp is hard to control with foliar contact insecticides because these are only effective within a narrow window during the period between hatching and penetration inside the plant stem (Beevor et al, 1990;Jones, 1998).…”

Section: V1 Introductionmentioning

confidence: 99%

“…The larvae of rice stem borers feed within plant stems causing severe crop losses in many cases (Beevor et al, 1990;Batalla, 1999a). Chilo spp is hard to control with foliar contact insecticides because these are only effective within a narrow window during the period between hatching and penetration inside the plant stem (Beevor et al, 1990;Jones, 1998). Nowadays, C. suppressalis is being controlled in Spain using aerial applications with insect growth regulators and mating disruption or mass trapping methods in more sensitive areas.…”

Section: V1 Introductionmentioning

confidence: 99%

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Uso de semioquímicos en el control de plagas. Estudios básicos y de aplicación

González¹

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Section: Feromonasunclassified

Section: V1 Introductionmentioning

confidence: 99%

Section: V1 Introductionmentioning

confidence: 99%

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Uso de semioquímicos en el control de plagas. Estudios básicos y de aplicación

González¹

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KNOCKDOWN OF CS‐SPOOK INDUCES DELAYED LARVAL MOLTING IN RICE STRIPED STEM BORER Chilo suppressalis

Shahzad

Yao

et al. 2014

Arch Insect Biochem Physiol

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Spook has essential roles in the biogenesis of the molting hormone 20-hydroxyecdysone (20-E). The function of spook in the rice striped stem borer (SSB) Chilo suppressalis remains unclear, prompting our hypothesis that it exerts actions similar to those reported for other insect species. Here we amplified the full-length transcript of spook (Cs-Spook) in SSB by 5' and 3' rapid amplification of cDNA ends. Cs-Spook has conserved P450 motifs such as Helix-C, Helix-I, Helix-K, and PERF motif (PxxFxPxRF). It was highly expressed in late instar larvae but less so in newly molted larvae. Cs-Spook was highly expressed in prothoracic glands. Cs-Spook was knocked down by dsRNA treatments. Compared with controls, the gene expression level was reduced to 9% at 24 h post injection (PI), 33% at 48 h PI, and 24% at 72 h PI. The ecdysteroid titer decreased significantly in the dsRNA-treated group (P < 0.05), resulting in delayed larval development. The delayed development in dsRNA-treatment group was rescued by treating with 20-E. Our work demonstrates that Cs-Spook participates in the biogenesis of 20-E and regulates the molt of SSB, as seen in other species.

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Odorant‐binding proteins involved in sex pheromone and host‐plant recognition of the sugarcane borer Chilo infuscatellus (Lepidoptera: Crambidae)

Liu

Hu²,

et al. 2020

Pest Management Science

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BACKGROUND: Pheromone-binding proteins (PBPs) are responsible for transporting sex pheromones and general odorantbinding proteins (GOBPs) have been proposed to transport host-plant volatiles. A large number of OBPs have been identified from Lepidoptera species. However, olfactory molecular biology and physiology studies on PBP and GOBP in sugarcane pests are limited. Chilo infuscatellus is one of the most widely distributed pests in sugarcane-producing areas. RESULTS: Three PBPs (CinfPBP1, CinfPBP2 and CinfPBP3) and two GOBPs (CinfGOBP1 and CinfGOBP2) were identified, and five olfactory gene transcripts were abundantly expressed in antennae of C. infuscatellus. Binding assays showed that CinfPBP1-3 exhibited strong binding affinity for the sex pheromone components Z11-16:OH and 16:OH of C. infuscatellus. Meanwhile, Cinf-GOBP1-2 had high binding affinity with host-plant volatiles from sugarcane (Saccharum officinarum). Field-trapping results suggested that four volatile components, octadecane, (Z)-3-hexen-1-ol, ⊍-terpineol and hexadecane from host plants and sex pheromone mixed baits have synergistic roles in attracting C. infuscatellus adult moths. CONCLUSION: Functional characterization of CinfPBPs and CinfGOBPs in C. infuscatellus could help us find new environmentally friendly alternatives to conventional pest control using pesticides in sugarcane fields.

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Female sex pheromones of Chilo spp. (Lepidoptera: Pyralidae) and their development in pest control applications

Cited by 18 publications

References 16 publications

Uso de semioquímicos en el control de plagas. Estudios básicos y de aplicación

Uso de semioquímicos en el control de plagas. Estudios básicos y de aplicación

KNOCKDOWN OF CS‐SPOOK INDUCES DELAYED LARVAL MOLTING IN RICE STRIPED STEM BORER Chilo suppressalis

Odorant‐binding proteins involved in sex pheromone and host‐plant recognition of the sugarcane borer Chilo infuscatellus (Lepidoptera: Crambidae)

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