Decreased motivation in the use of insecticide-treated nets in a malaria endemic area in Burkina Faso
The motivation for the use of bednets decreased after less than a year, and concerted efforts are required to change behaviour by providing accurate information, most particularly by convincing people that mosquitoes are the only source of malaria, whilst recognising that there are other diseases with similar symptoms, caused in other ways.
Experimental formulations of Bacillus sphaericus and B. thuringiensis israelensis against Culex quinquefasciatus and Anopheles gambiae (Diptera: Culicidae) in Burkina Faso.
Cesspits and puddles were the most important larval habitats for these 2 species in Ouagadougou during the rainy season, and these trials showed that An.
A method for the study of population size and survival rate of houseflies
A field population of houseflies, Musca domestica L., was studied by means of a mark‐release‐recapture method (Bailey's triple‐catch method), and the mean duration of adult life of flies was found to be short.
Combined field and laboratory evaluation of a long-term impregnated bednet, PermaNet.
Is Bacillus thuringiensis standardisation still possible
A new way of titrating Bt products combining insect based bioassay and quantitative determination of toxin protein with biochemical methods is proposed and improvement in the standard protocols used for bioassays and the statistical methods applied is suggested.
Impact of Slow-Release Bacillus Sphaericus Granules on Mosquito Populations Followed in a Tropical Urban Environment
- O. Skovmand, T. Ouédraogo, E. Sanogo, H. Samuelsen, L. P. Toé, T. Baldet
- MedicineJournal of medical entomology
The study showed that it is possible to organize mosquito control in a tropical, urban environment by forming and rapidly training teams of young people to carry out the mosquito control mostly using a biopesticide that can be applied without any tools except an iron bar to lift lids on some cesspits.
Efficacy of a granular formulation of Bacillus sphaericus against Culex quinquefasciatus and Anopheles gambiae in West African countries.
The efficacy of a sustained released granular formulation of Bacillus sphaericus strain 2362 was compared to a flowable concentrate in containers, cesspools, and water ponds and spores showed an increase in number of spores at the surface where larvae were added weekly and a rapid decline where they were not.
Strength of bed nets as function of denier, knitting pattern, texturizing and polymer
Using this methodology, the commercial monofilament yarn polyethylene nets are significantly stronger than the commercial multifilament polyester nets.
Parameters influencing potency of Bacillus thuringiensis var. israelensis products.
- O. Skovmand, D. Hoegh, H. S. Pedersen, T. Rasmussen
- BiologyJournal of Economic Entomology
- 1 April 1997
Biochemical methods for quantification of toxin can not relate simply to potency of the products obtained with this method, and it is suggested that standard protocols for bioassay may be changed to assure equal particle size of products and samples to obtain parallel dose response.
Personal protection of long lasting insecticide-treated nets in areas of Anopheles gambiae s.s. resistance to pyrethroids
The efficacy of the two types of LLINs was comparable, during a period when the S-form of An.