The taxonomy, distribution, biology and economic importance of the millet grain midge,<i>Geromyia penniseti</i>(Felt), gen. n., comb. n. (Dipt., Cecidomyiidae)

Coutin, R.; Harris, K. M.

doi:10.1017/s0007485300003199

Cited by 15 publications

(6 citation statements)

References 8 publications

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“…Onset of the rains, however, is frequently linked to diapause termination (Denlinger, 1986). The results of this study are similar to those showing that rainfall or artificial wetting stimulates pupation in diapausing larvae (Lamborn, 1938;Squire, 1939;Kevan, 1944;Hynes, 1947;Geering, 1953;Greathead, 1958;van Dinther, 1961;Coutin and Harris, 1968;Usua, 1970;Bowden, 1976). Diapause in the pupae of ethmiid moths is broken in response to sporadic rainfall in desert situations (Powell, 1974).…”

Section: Breaking Of Dormancysupporting

confidence: 86%

Effect of precipitation on emergence ofSmicronyx guineanusVoss andSm. umbrinusHustache (Coleoptera: Curculionidae) adults and soil vertical distribution of pupae

Traoré

Vincent

Stewart³

1996

International Journal of Pest Management

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A three-year study was conducted to evaluate the effect of rainfall on the emergence of Smicronyx guineanus Voss and Sm. umbrinus Hustache adults and the vertical distribution of pupae in the soil. Field collection of data was conducted in 1990, 1991 and 1993 in sorghum and millet fields infested by Striga hermonthica at Kaya and Ouahigouya (Burkina Faso, West Africa). In 1993, experiments were conducted in an insectary with the use of simulated rainfall. Ten, 20, 30, 40, and 50 mm of rainfall were stimulated and the effect on the pupal emergence noted. Each of the six levels of the factor 'rainfall' was tested with pieces of Striga flower, stem and no Striga present. A highly significant difference was observed among rainfall heights and an optimum rainlall of 30-40 mm was found for Smicronyx adult emergence. No interaction was found between rainfall and Striga. To assess the vertical distribution of Smicronyx pupae in soil, five field quadrats were collected at Kaya and Ouahigouya respectively in October 1991October , 1992October and 1993. Four vertical layers, 0-5, 5-10, 10-15, and 15-20 cm, were extracted separately and 0-5 and 5-10 cm layers showed significantly higher percentages of Smicronyx pupae in 1991 (63.2%) and 1993 (58.9%).

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Section: Breaking Of Dormancysupporting

confidence: 86%

Effect of precipitation on emergence ofSmicronyx guineanusVoss andSm. umbrinusHustache (Coleoptera: Curculionidae) adults and soil vertical distribution of pupae

Traoré

Vincent

Stewart³

1996

International Journal of Pest Management

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“…Geromyia penniseti is economically important in savanna areas. The population increases rapidly early in the season and the local millet flowering in late September is exposed to severe infestation which may result in up to 90% loss in grain yield (Coutin and Harris, 1968). Recent observations indicate that 100% infestation may occur on late millets (sanio) cultivated mainly in the Casamance region of southern Senegal (Ndoye,19.79c).…”

Section: Earhead Pestsmentioning

confidence: 99%

“…Diapause is broken by warm and humid conditions. In the laboratory, larvae pupate normally when sprayed with 60 mm simulated rainfall ten times at weekly intervals (Coutin and Harris, 1968). The life cycle is completed in two weeks and four or five generations may occur in a single season, with successive generations tending to overlap.…”

Section: Earhead Pestsmentioning

confidence: 99%

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Insect pests of pearl millet in West Africa: A review

Gahukar

1984

Tropical Pest Management

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Pearl millet (Pennisetum americanum (L.) K. Schum), a major food crop in the sahelian and savanna regions of West Africa, is attacked by about 100 species of insects. Of these, the only regular pests are stem borers (Acigona ignefusalis Hmps. and Sesamia spp.) and earhead caterpillars (Masalia spp., Raghuva spp.). Sporadic pests such as hairy caterpillars (Amsacta moloneyi Druce), armyworms (Spodoptera spp. and Mythimna spp.) and grasshoppers (Acrididae) may cause severe losses to crops during prolonged droughts early in the season. A grain midge (Geromyia penniseti (Felt)) attacks late millets and causes a considerable loss in yield. Information is presented on the biology, distribution, hosts and natural enemies of these pests, and some methods of control are discussed.

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“…G. penniseti is economically important on late millets in savanna areas in Africa and South India (Coutin and Harris, 1968;Santharam ef al., 1976). Larval feeding prevents normal seed development and causes complete or partial abortion of spikes, resulting in up to 90% yield loss (Coutin and Harris, 1968). The small orange coloured female fly deposits about 300 eggs within flowering spikelets.…”

Section: Grain Midgesmentioning

confidence: 99%

Insect pests of millets and their management: A review

Gahukar

1989

Tropical Pest Management

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About a hundred insect pests attack millets in the field and during storage. Some are common throughout the millet growing areas. Stem borers and grain midge are of regular occurrence. White grubs are important in India. Spike worms have recently become serious in the sub-Sahelian zone of West Africa. Sporadic attacks of blister beetles, armyworms, grasshoppers, chinch bugs, leaf beetles, head caterpillars and head bugs result in severe yield losses in certain seasons. There is a higher incidence of storage pests in the rainy season. Research on pest management needs to be intensified. The tactics differ with the pest complex and the agroecosystem. However, a combination of cultural practices and resistant cultivars have proved to be effective. Multiple pest resistance has become more important in order to reduce insecticide use, common in pest endemic areas and during outbreaks. The exchange of genetic material and research information can provide an interdisciplinary approach to pest management in millets. Résumé.Une centaine des insectes attaquent les mils aux champs et durant le stockage. Quelques uns se trouvent dans toutes les régions où les mils sont cultivés. Les foreurs de tiges et la cécidomyie se trouvent régulièrement. Les vers blancs sont importants aux Indes. Les mineuses des chandelles sont devenues importants ravageurs récemment dans la sous région sahélienne de l'afrique de l'ouest. Les attaques sporadiques de cantharides, chenilles défoliatrices, sauterelles, chrysomèles, punaises, chenilles de panicule résultent en des pertes considérables dans certaines saisons. L'incidence des insectes des denrées est élevée pendant la saison pluvieuse. La recherche sur la lutte intégrée demande d'être intensifiée. Les tactiques de contrôle différent selon le compléxe des insectes et l'agroécosystème. Pourtant, une combinaison des pratiques culturales et les cultivars résistants s'est montrée efficace. La résistance contre plusieurs insectes est devenue populaire afin de réduire l'usage des insecticides qui sont utilisés actuellement dans les zones endémiques et en cas d'évasion d'insectes. L'échange du matériel génétique et l'information de recherches peut faciliter l'approache interdisciplinaire pour la lutte intégrée contre les insectes des mils.

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The taxonomy, distribution, biology and economic importance of the millet grain midge,Geromyia penniseti(Felt), gen. n., comb. n. (Dipt., Cecidomyiidae)

Abstract: The taxonomy, distribution, biology and economic importance of the millet grain midge, Geromyia penniseti (Felt), gen. n., comb. n. (Dipt., Cecidomyiidae)

Cited by 15 publications

References 8 publications

Effect of precipitation on emergence ofSmicronyx guineanusVoss andSm. umbrinusHustache (Coleoptera: Curculionidae) adults and soil vertical distribution of pupae

Effect of precipitation on emergence ofSmicronyx guineanusVoss andSm. umbrinusHustache (Coleoptera: Curculionidae) adults and soil vertical distribution of pupae

Insect pests of pearl millet in West Africa: A review

Insect pests of millets and their management: A review

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