In: Behavioral Ecology, 2011, vol. 22, no. 2, p. 392-400
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In: Physiological Entomology, 2011, vol. 39, no. 2, p. 101-110
Olfaction is of major importance for survival and reproduction in moths. Males possess highly specific and sensitive olfactory receptor neurones to detect female sex pheromones. However, the capacity of male moths to respond to host-plant volatiles is relatively neglected and the role that such responses could play in the sensory ecology of moths is still not fully understood. The present study...
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In: Physiological Entomology, 2014, vol. 39, no. 2, p. 172-182
A membrane feeding assay in which the effects of the antimalarial drugs quinine and artesunate are tested on Anopheles gambiae Giles sensu stricto is described. In the present study, 87% of female A. gambiae are shown to feed on whole defibrinated bovine blood alone, whereas only 47% and 43.5% feed on saline and on saline + bovine serum albumin (BSA) solutions, respectively,...
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In: Flavour and Fragrance Journal, 2007, vol. 22, no. 2, p. 130-138
The essential oil extracted from Piper betle L. leaf using pilot plant steam distillation was tested against the adult housefly, Musca domestica, for insecticidal activity. LC50 values at the end of 24 and 48 h exposure periods were 10.3 and 8.7 mg/dm3, respectively. Ceylon citronella oil (Cymbopogon nardus) used as a standard showed LC50s of...
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In: Pesticide Biochemistry and Physiology, 2013, vol. 107, no. 2, p. 160-168
The threat of transmission of Lyme borelliosis and tick-borne encephalitis by ixodid ticks has resulted in an increasing number of tick repellents coming onto the market. To allow proper evaluation of the efficacy of different types of compounds and their formulations, there is a need for standardised methods for testing ticks repellents. Ticks show a marked negative geotactic response following...
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In: PloS Negleted Tropical Deseases, 2012, vol. 6, no. 2, p. e1491 1-8
Here we describe field trials designed to standardize tools for the control of Glossina tachinoides, G. palpalis gambiensis and G. morsitans submorsitans submorsitans in West Africa based on existing trap/target/bait technology. Blue and black biconical and monoconical traps and 1 m2 targets were made in either phthalogen blue cotton, phthalogen blue...
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In: The Journal of Experimental Biology, 2013, vol. 216, p. 1292-1306
In this study, we show that female African malaria mosquitoes Anopheles gambiae starved for 3–5 h start to engorge on sucrose at concentrations between 50 and 75 mmol l−1. Half of the feeding response (ED50) is reached at 111 mmol l−1 and the maximum response (0.4 mg) occurs at 250 mmol l−1. Two receptor cells in a trichoid sensillum of...
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In: Revue d’élevage et de médecine vétérinaire des pays tropicaux, 2005, vol. 58, no. 1-2, p. 27-29
Tsetse flies are very efficient cyclic vectors of African trypanosomosis. Since tsetse are generally infected by the first blood meal, as in the case of sleep-ing sickness for example, any propensity to feed on the same host a second time will improve transmission within this host species, whereas transmission between host species will decrease. To test this hypothesis we presented a monitor...
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In: The Journal of Experimental Biology, 2004, vol. 204, no. 24, p. 4283-4289
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In: The Journal of Experimental Biology, 2001, vol. 204, no. 3, p. 585-597
Olfactory receptors in basiconic and grooved-peg sensilla on the antenna of fifth-instar Triatoma infestans nymphs respond to host odours. Gas chromatography analyses of host odour extracts coupled to electrophysiological recordings from basiconic sensillum receptors indicate that nonanal is a constituent of sheep wool and chicken feather odour that stimulates one of the receptors in this...
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