Mise au point d'un systeme de lutte rationnelle contre les insectes ravageurs sur les perimetres rizicoles irrigues au Burkina Faso

Dakouo, D.; Nacro, Souleymane; Bacyé, Bernard

doi:10.1017/s1742758400013035

Cited by 5 publications

(6 citation statements)

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“…Similar observations were made by Dakouo et al (1991) with Chilo spp. Similar observations were made by Dakouo et al (1991) with Chilo spp.…”

Section: Discussionsupporting

confidence: 88%

“…Adult populations of Chilo spp. However, the average percentages of damaged panicles observed were comparable with those reported by Kaboré et al (2002) in the same locations, but were lower than the 30% of whiteheads recorded by Dakouo et al (1991) in the Kou Valley. Therefore, it appears that both Chilo species (Bonzi, 1982) were active throughout the year and do not diapause like the Asian Chilo suppressalis Walker (Li et al, 2002).…”

Section: Discussionsupporting

confidence: 88%

“…Lepidopteran stemborers from the genera Chilo and Maliarpha as well as diopsid flies have been reported as insect pests of economic importance in Burkina Faso (Coulidiaty, 1983;Dakouo et al, 1991). The results of this study confirmed their importance in the three major irrigated rice schemes in western Burkina Faso.…”

Section: Discussionsupporting

confidence: 75%

“…(Diptera: Diopsidae) (Dakouo et al, 1988(Dakouo et al, , 1991Nacro and Dakouo, 1997). These insects include the African rice gall midge, Orseolia oryzivora Harris & Gagné (Diptera: Cecidomyiidae), the lepidopteran stemborers, Chilo zacconius Bleszynski, Chilo diffusilineus de Joannis and Maliarpha separatella Ragonot (all Lepidoptera: Pyralidae) and several species of the diopsid fly, Diopsis spp.…”

Section: Introductionmentioning

confidence: 99%

“…These insects include the African rice gall midge, Orseolia oryzivora Harris & Gagné (Diptera: Cecidomyiidae), the lepidopteran stemborers, Chilo zacconius Bleszynski, Chilo diffusilineus de Joannis and Maliarpha separatella Ragonot (all Lepidoptera: Pyralidae) and several species of the diopsid fly, Diopsis spp. Lepidopteran stemborers and a complex of diopsid flies are responsible for yield losses of up to 30% (Dakouo et al, 1991). In the southwestern region of the country, O. oryzivora can destroy up to 60% of plant tillers (Nacro et al, 1995) during the wet cropping season, thereby compromising the whole harvest (Nacro et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

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Seasonal abundance of lepidopteran stemborers and diopsid flies in irrigated fields of cultivated (Oryza sativa) and wild rice (Oryza longistaminata) in western Burkina Faso

Dakouo

Nacro

et al. 2008

JTI

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Lepidopteran stemborers (Chilo zacconius Bleszynski, Chilo diffusilineus de Joannis and Maliarpha separatella Ragonot) and diopsid flies (Diopsis spp.) are economically significant insect pests of rice in Burkina Faso. The objective of this study was to monitor damage trends and the pre-imaginal populations of these insects on two host plants, cultivated (Oryza sativa L.) and wild rice (Oryza longistaminata Chev and Roehr). The study was conducted over four consecutive rice crop seasons from 1999 to 2001 in three irrigated rice-growing locations in western Burkina Faso. Sampling of cultivated rice was conducted monthly in 1 m 2 quadrates in 100 randomly selected farmers' fields. Data on wild rice were collected monthly from each of the three locations using 500 tillers that were plucked at random and dissected. Results showed that in the absence of a rice crop lepidopteran stemborers and diopsid flies are able to survive on O. longistaminata, which can host the pre-imaginal populations of these insects throughout the year. Damage caused on cultivated rice varied across farmers' fields, seasons and phenological stages of the plants. With 8% the highest average extent of 'whiteheads' was recorded during the dry season. These results are important elements in the design of a sustainable management strategy for these insect pests.

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“…Similar observations were made by Dakouo et al (1991) with Chilo spp. Similar observations were made by Dakouo et al (1991) with Chilo spp.…”

Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Seasonal abundance of lepidopteran stemborers and diopsid flies in irrigated fields of cultivated (Oryza sativa) and wild rice (Oryza longistaminata) in western Burkina Faso

Dakouo

Nacro

et al. 2008

JTI

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Effect of transplanting period on the population dynamics, parasitism and damage of lepidopteran rice stem borers in irrigated rice scheme of Vallée du Kou, Burkina Faso

Sama

Nacro

Dakouo

2015

Int. J. Trop. Insect Sci.

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Natural enemies associated with rice stemborers in the Kou Valley, Burkina Faso

Souobou

Nacro

Ouattara

2015

Int. J. Trop. Insect Sci.

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Stemborers are a major constraint to the production of rice in the Kou Valley, Burkina Faso. Biological control is a good alternative to the use of agrochemicals that are harmful to human and animal health, and the environment. A survey of natural enemies of stemborers was conducted during the 2014 rice-cropping season across three transplanting periods (P1, P2 and P3). Plant and insect samples were collected by mowing and trapping at weekly intervals until harvest, starting 21 days after transplanting, and examined microscopically. Immature stages of the parasitized stemborers were reared to maturity for a positive identification of the parasitoids. Three genera of stemborers were identified:Chilo(Lepidoptera: Pyralidae),Maliarpha(Lepidoptera: Pyralidae) andSesamia(Lepidoptera: Noctuidae). TheChilogenus was the most important with an average percentage of 41.4% of the pre-imaginal population in P2 followed byMarliarpha(1.1%) andSesamia(0%). A total of 15 hymenopteran parasitoid species that included nine genera and seven families were identified. All the parasitoids were associated withChiloand only two of the species parasitizedMaliarpha. The most frequent parasitoids encountered wereBracon testacerofatus,Goniozus indicus,Dolichogenidea oryzaeandBraconspp. A total of 28 predator species were recorded from 22 genera, 6 orders and 15 families.Leucaugesp.,Agriocnemissp.,Lycosa pseudoannulataandLycosasp. were the most important predators with frequencies reaching 15% of the arthropods caught in some fields. These results will be employed to develop a sustainable system to manage rice stemborers.

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Mise au point d'un systeme de lutte rationnelle contre les insectes ravageurs sur les perimetres rizicoles irrigues au Burkina Faso

Cited by 5 publications

References 2 publications

Seasonal abundance of lepidopteran stemborers and diopsid flies in irrigated fields of cultivated (Oryza sativa) and wild rice (Oryza longistaminata) in western Burkina Faso

Seasonal abundance of lepidopteran stemborers and diopsid flies in irrigated fields of cultivated (Oryza sativa) and wild rice (Oryza longistaminata) in western Burkina Faso

Effect of transplanting period on the population dynamics, parasitism and damage of lepidopteran rice stem borers in irrigated rice scheme of Vallée du Kou, Burkina Faso

Natural enemies associated with rice stemborers in the Kou Valley, Burkina Faso

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