Potential Effects Of Pyrethrin Incorporated In Sucrose Baits Against Phlebotomus Duboscqi Neveu Lemaire (diptera: Psychodidae) In Leishmaniasis Control Strategies
Background: Due to challenges of controlling leishmaniasis in Kenya through the vector, the efficacy of pyrethrin EC (Pymos™ 0.6% W/V) a mosquito adulticide was evaluated against Phlebotomus duboscqi while incorporated in sucrose as a possible complementary method. Methods: Pyrethrin was prepared in...
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2024
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| author | Ireri, Laban Mucheru, Obadiah Ngure, Peter Kepha, Stella Kimuta, Albert Cirindi, Josyline Tonui, Willy |
| author_facet | Ireri, Laban Mucheru, Obadiah Ngure, Peter Kepha, Stella Kimuta, Albert Cirindi, Josyline Tonui, Willy |
| author_sort | Ireri, Laban |
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| description | Background: Due to challenges of controlling
leishmaniasis in Kenya through the vector, the efficacy
of pyrethrin EC (Pymos™ 0.6% W/V) a mosquito
adulticide was evaluated against Phlebotomus
duboscqi while incorporated in sucrose as a possible
complementary method.
Methods: Pyrethrin was prepared into concentrations
of 0.08, 0.25and 0.5 mg/ml using 10% sucrose. Ten
male and female sand flies were each aspirated into
jars and fed separately with the prepared solutions
using cotton wool pads placed atop experimental jars
and mortality monitored each day. The experiments
were replicated three times.
Results: Significant mortality (P< 0.05) for both sexes
was observed. The concentration of 0.08mg/ml gave
low adult mortality in 24 hours but amplified with time.
In the 0.25 bioassay, mortality of females were 10
(33.3%) and males had 21 (70%) in 24 hours. The LD50
for females and males tied at 0.1 mg/ml in 48 hours of
exposure. The concentration of 0.25 mg/ml was ideal
at 48 hours of feeding where majority of the sand flies
succumbed to the insecticide. There were significant
mortality differences (P <0.05) between the
concentrations but no significant difference (P>0.05)
was observed in male and female mortality at 48 hours
of exposure however. Although we cannot rule out
sand fly mortality due to contact with the test material,
the results of this study however suggest that control
strategies using low-dose pyrethrin-sugar
combinations as baits may be effective against
phlebotomine sand flies and other sugar feeding pests
of medical importance. |
| format | Article |
| id | oai:repository.daystar.ac.ke:123456789-4511 |
| institution | Daystar University |
| language | English |
| publishDate | 2024 |
| publisher | Webmedcentral |
| record_format | dspace |
| spelling | oai:repository.daystar.ac.ke:123456789-45112024-05-07T13:05:41Z Potential Effects Of Pyrethrin Incorporated In Sucrose Baits Against Phlebotomus Duboscqi Neveu Lemaire (diptera: Psychodidae) In Leishmaniasis Control Strategies Ireri, Laban Mucheru, Obadiah Ngure, Peter Kepha, Stella Kimuta, Albert Cirindi, Josyline Tonui, Willy Pyrethrin sucrose baits Phlebotomus duboscqi Leishmaniasis Vector control Background: Due to challenges of controlling leishmaniasis in Kenya through the vector, the efficacy of pyrethrin EC (Pymos™ 0.6% W/V) a mosquito adulticide was evaluated against Phlebotomus duboscqi while incorporated in sucrose as a possible complementary method. Methods: Pyrethrin was prepared into concentrations of 0.08, 0.25and 0.5 mg/ml using 10% sucrose. Ten male and female sand flies were each aspirated into jars and fed separately with the prepared solutions using cotton wool pads placed atop experimental jars and mortality monitored each day. The experiments were replicated three times. Results: Significant mortality (P< 0.05) for both sexes was observed. The concentration of 0.08mg/ml gave low adult mortality in 24 hours but amplified with time. In the 0.25 bioassay, mortality of females were 10 (33.3%) and males had 21 (70%) in 24 hours. The LD50 for females and males tied at 0.1 mg/ml in 48 hours of exposure. The concentration of 0.25 mg/ml was ideal at 48 hours of feeding where majority of the sand flies succumbed to the insecticide. There were significant mortality differences (P <0.05) between the concentrations but no significant difference (P>0.05) was observed in male and female mortality at 48 hours of exposure however. Although we cannot rule out sand fly mortality due to contact with the test material, the results of this study however suggest that control strategies using low-dose pyrethrin-sugar combinations as baits may be effective against phlebotomine sand flies and other sugar feeding pests of medical importance. This study received financial support from the International Foundation for Science (IFS) Karlavägen 108, 5th floor SE-115 26 Stockholm, Sweden and the Organization for the Prohibition of Chemical Weapons, The Hague (OPCW). There are no competing interests. 2024-05-07T13:00:33Z 2024-05-07T13:00:33Z 2010-11-06 Article Ireri L, Mucheru O, Ngure P, Kepha S, Kimutai A, Cirindi J, Tonui W. Potential Effects Of Pyrethrin Incorporated In Sucrose Baits Against Phlebotomus Duboscqi Neveu Lemaire (diptera: Psychodidae) In Leishmaniasis Control Strategies . WebmedCentral PARASITOLOGY 2010;1(11):WMC001086 https://repository.daystar.ac.ke/handle/123456789/4511 en WMC001086 application/pdf Webmedcentral |
| spellingShingle | Pyrethrin sucrose baits Phlebotomus duboscqi Leishmaniasis Vector control Ireri, Laban Mucheru, Obadiah Ngure, Peter Kepha, Stella Kimuta, Albert Cirindi, Josyline Tonui, Willy Potential Effects Of Pyrethrin Incorporated In Sucrose Baits Against Phlebotomus Duboscqi Neveu Lemaire (diptera: Psychodidae) In Leishmaniasis Control Strategies |
| title | Potential Effects Of Pyrethrin Incorporated In Sucrose Baits Against Phlebotomus Duboscqi Neveu Lemaire (diptera: Psychodidae) In Leishmaniasis Control Strategies |
| title_full | Potential Effects Of Pyrethrin Incorporated In Sucrose Baits Against Phlebotomus Duboscqi Neveu Lemaire (diptera: Psychodidae) In Leishmaniasis Control Strategies |
| title_fullStr | Potential Effects Of Pyrethrin Incorporated In Sucrose Baits Against Phlebotomus Duboscqi Neveu Lemaire (diptera: Psychodidae) In Leishmaniasis Control Strategies |
| title_full_unstemmed | Potential Effects Of Pyrethrin Incorporated In Sucrose Baits Against Phlebotomus Duboscqi Neveu Lemaire (diptera: Psychodidae) In Leishmaniasis Control Strategies |
| title_short | Potential Effects Of Pyrethrin Incorporated In Sucrose Baits Against Phlebotomus Duboscqi Neveu Lemaire (diptera: Psychodidae) In Leishmaniasis Control Strategies |
| title_sort | potential effects of pyrethrin incorporated in sucrose baits against phlebotomus duboscqi neveu lemaire (diptera: psychodidae) in leishmaniasis control strategies |
| topic | Pyrethrin sucrose baits Phlebotomus duboscqi Leishmaniasis Vector control |
| url | https://repository.daystar.ac.ke/handle/123456789/4511 |
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Glossary of plant derived insect deterrents