The night resting sites of the tsetse fly <i>Glossina palpalis palpalis</i> (Robineau-Desvoidy) (Diptera, Glossinidae) in northern Nigeria

Scholz, Elke; Spielberger, U; Ali, J.

doi:10.1017/s0007485300006854

Cited by 22 publications

(19 citation statements)

References 10 publications

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“…gambiensis in selecting sites close to the ground was similar to the results obtained by CHALLIER (1973) and Bois et al (1977) on the same subspecies in Upper Volta. The collection of two males on tree canopies at heights above 3.0 m, shows that some of the flies do occasionally rest at higher levels, as SCHOLTZ et al (1976) found for G.…”

Section: Discussionmentioning

confidence: 52%

“…They concluded that the increased recapture rate during the rainy season was probably because the more equable climate during this period kept flies in the locality, while during the dry season the increasing hostility of the weather caused flies to disperse. This does not seem plausible since the adjoining areas have undergone ruthless clearing (SCHOLTZ et al, 1976) in order to isolate the experimental site and are therefore more inhospitable. The present results indicate that one of the probable reasons for low recapture rates in areas with an abundance of fallen logs may be due to the penetration of released flies through the undergrowth to seek resting sites on fallen logs, where detection is often difficult.…”

Section: Discussionmentioning

confidence: 99%

“…Observations by the mark/recapture method have constantly given relatively low recapture rates despite the isolated nature of the study sites; recapture rates of more than 31% have not been achieved. Furthermore, the recent studies of SCHOLTZ et al (1976) showed that there was a decrease in recapture rates during the dry season which is the period of insecticide applications. The tanglefoot method was used in these studies; tanglefoot application methods have been described in detail (OKIWELU, 1976(OKIWELU, , 1977.…”

Section: Methodsmentioning

confidence: 99%

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Resting site preferences of the tsetse, Glossina palpalis gambiensis Vanderplank (Diptera: Glossinidae), in Mali

Okiwelu

1981

Int. J. Trop. Insect Sci.

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Studies on the resting site preferences of the tsetse, Glossina palpalis gambiensis Vanderplank, were conducted in a gallery forest in the Northern Guinea Savanna in Mali. Tanglefoot was used to trap flies alighting to rest on the various site-types investigated. Five site-types were observed: boles, fallen logs, undergrowth ('bush'), branches and tree canopies. Observations were made in the warm rainy, warm dry and hot dry seasons.Distribution of resting flies on site-types was significantly heterogenous in each of the seasons. More than 80% of flies collected in each of the three seasons were found on fallen logs. Generally, there was no significant difference in numbers found on the top or side of fallen logs. Boles were the next best preferred site-type. Approximately 90% of flies on boles were collected below 1.0 m and none was found above 2.0 m. Few flies were collected from the undergrowth (bushes), tree canopies and branches. Similarities and differences between results obtained from the present study with those of other workers are discussed. The importance of the results in ground insecticide control operation against this species is noted.

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Section: Discussionmentioning

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Resting site preferences of the tsetse, Glossina palpalis gambiensis Vanderplank (Diptera: Glossinidae), in Mali

Okiwelu

1981

Int. J. Trop. Insect Sci.

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“…centralis and G. pallidipes , than for riverine tsetse species, such as G. palpalis and Glossina fuscipes . In both habitats, tsetse often spend nights on or under leaves (Robinson, ; Scholz et al ., ). In riverine systems with thick vegetation, there is perhaps a greater possibility that the vegetation will interfere with the spray reaching its target (Challier, ).…”

Section: Discussionmentioning

confidence: 97%

Modelling optimal timing and frequency of insecticide sprays for eradication or knockdown of closed populations of tsetse flies Glossina spp. (Diptera: Glossinidae)

Barclay

Hargrove²,

Driessche

2020

Medical Vet Entomology

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A population model for tsetse species was used to assess the optimal number and spacing of airborne sprays to reduce or eradicate a tsetse population. It was found that the optimal spray spacing was determined by the time (days) from adult emergence to the first larviposition and, for safety, spacing was assigned to that duration minus 2 days. If sprays killed all adults, then the number of sprays required for eradication is determined by a simple formula. If spray efficiency is less than 100% kill per spray, then a simulation was used to determine the optimal number, which was strongly affected by spray efficiency, mean daily temperature, pupal duration, age to first larviposition and the acceptance threshold for control, rather than eradication. For eradication, it is necessary to have a spray efficiency of greater than 99.9% to avoid requiring an excessive number of sprays. Output from the simulation was compared with the results of two aerial spraying campaigns against tsetse and a least squares analysis estimated that, in both cases, the kill efficiency of the sprays was not significantly less than 100%.

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“…Cependant, dans des conditions locales particulieres, elles sont presque toujours observees ou capturees au repos sur les memes especes de plantes (Laveissiere, 1976 b;Lavaissiere et al, 1979 b;Gruvel, 1975;Turner, 1980 c;Scholtz et al, 1976).…”

Section: Pourquoi Une Telle Etude?unclassified

Lieux de repos diurnes de Glossina palpalis palpalis (Robineau-Desvoidy) dans une zone preforestiere de Cote D'Ivoire

Sékétéli¹,

Kuzoe²

1994

Int. J. Trop. Insect Sci.

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Resume-Des etudes sur les lieux de repos diurnes de Glossina palpalis palpalis ont ete menees d'octobre 1981 a decembre 1982 dans le foyer de trypanosomia.se humaine de Bouafle (Cote d'lvoire). 1382 glossines (970 males et 412 femelles), ont ete observees au repos dans leurs habitats naturels apres 757 heures de recherche. Quelle que soit la saison, plus de 80% des mouches etaient trouvees au repos sur des lianes (Acaciapennata en particulier), sur des cafeiers (Coffea indica), sur des composees representees par l'espece Eupatorium odoratum.La quasi totalite des mouches observees se reposaient de preference sur la face inferieure des parties ligneuses des plantes choisies, a des hauteurs comprises entre 10 cm et 2,5 m du sol. Les diametres des supports ligneuses allaient de 0,1 cm a 8 cm. II convient de noter que quelle que soit la saison, plus de 50% des mouches se reposaient a une hauteur inferieure a 50 cm et que plus de 90% d'entre elles etaient observees sur des supports de diametres inferieures ou egaux a 3 cm.Sur la vegetation bordant les villages ou les differentes voies d'acces, les glossines ont toujours ete trouvees au repos en profonfeur dans cette vegetation a des distances comprises entre 1 et 5 m des lisieres.Environ 27 % des mouches capturees au repos ont ete trouvees gorgees ou en phase intermediare. La capture des glossines au repos dans leurs habitats constitue done dans la zone d'etude, un moyen privilegie pour la collecte de repas de sang frais en vue de I'identification des notes naturels de G. palpalis palpalis.Les implications practiques d'une telle etude sont discutees et des recommandations sont formulees pour l'application selective d'insecticides remanents contre les vecteurs de la trypanosomiase humaine dans le foyer de Bouafle.Mots Cles: Glossines, Glossina palpalis palpalis, lieux de repos Abstract-The diurnal resting sites of Glossina palpalis palpalis were studied from October 1981 to December 1982 in the human trypanosomiasis focus at Bouafle (Ivory Coast). A total of 1382 resting tsetse (970 males and 412 females), were found after 757 hr of search in their natural habitats.At any season, over 80% of the flies were resting on lianas (Acacia pennata in particular), on coffee trees (Coffea indica) and on Eupatorium odoratum.Almost all the flies showed a preference for resting on the underside of woody parts of plants selected. The heights of the resting sites ranged from 10 cm to 2.5 m above the ground and their diameters ranged from 0.1 cm to 8 cm. It must be stressed that both in the dry and in the rainy seasons, more than 50% of the flies rested below 50 cm from the ground and over 90% of these favoured stems and branches measuring less than 3 cm in dia. About 27% of flies were engorged or showed at least red blood meals in their guts. The catching of resting flies therefore, appears to be an excellent way of collecting fresh blood meals for identification of the natural vertebrate hosts of G. p. palpalis in the study area.The practical interest of the study is discussed and r...

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The night resting sites of the tsetse fly Glossina palpalis palpalis (Robineau-Desvoidy) (Diptera, Glossinidae) in northern Nigeria

Cited by 22 publications

References 10 publications

Resting site preferences of the tsetse, Glossina palpalis gambiensis Vanderplank (Diptera: Glossinidae), in Mali

Resting site preferences of the tsetse, Glossina palpalis gambiensis Vanderplank (Diptera: Glossinidae), in Mali

Modelling optimal timing and frequency of insecticide sprays for eradication or knockdown of closed populations of tsetse flies Glossina spp. (Diptera: Glossinidae)

Lieux de repos diurnes de Glossina palpalis palpalis (Robineau-Desvoidy) dans une zone preforestiere de Cote D'Ivoire

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