Ammonium sulphate fertiliser increases larval populations of Anopheles arabiensis and culicine mosquitoes in rice fields

C M Mutero; P N Ng'ang'a; P Wekoyela; J Githure; F Konradsen

Ammonium sulphate fertiliser increases larval populations of Anopheles arabiensis and culicine mosquitoes in rice fields

C M Mutero, P N Ng'ang'a, P Wekoyela, J Githure, F Konradsen

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

63 Citationer (Scopus)

Abstract

Udgivelsesdato: 2004-Jan

Originalsprog	Engelsk
Tidsskrift	Acta Tropica
Vol/bind	89
Udgave nummer	2
Sider (fra-til)	187-92
Antal sider	5
ISSN	0001-706X
Status	Udgivet - 2004

Bibliografisk note

Keywords: Ammonium Sulfate; Animals; Anopheles; Crops, Agricultural; Fertilizers; Larva; Oryza sativa; Population Density; Water Microbiology; Water Supply

Citationsformater

@article{480745a0ec5e11ddbf70000ea68e967b,

title = "Ammonium sulphate fertiliser increases larval populations of Anopheles arabiensis and culicine mosquitoes in rice fields",

abstract = "Field experiments were conducted in central Kenya, to study the effect of ammonium sulphate fertiliser ((NH(4))(2)SO(4)) on mosquito larval populations in rice fields. The experiments used a complete randomised block design having four blocks with two experimental ponds per block, and the fertiliser and control treatments allocated randomly among the ponds. Student's two-sample unpaired t-test was used to test for the significance of differences between the relative counts of larvae in fertiliser and control treatments. The results showed a significant overall increase in the larval populations of An. arabiensis (P<0.01) and culicine mosquitoes (P<0.05), after ponds were treated with the fertiliser. Significantly more fourth instar larvae of An. arabiensis were collected in fertiliser than control plots (P<0.001). An. arabiensis data indicated that the first fertiliser application had the most impact, compared to the second and third applications. This was evident in a significant peak of combined first and second instar An. arabiensis larvae observed 5 days after the first fertiliser application (P<0.05). The studies suggest that ammonium sulphate fertiliser reduces turbidity of water in rice fields, thereby making them visually more attractive for egg-laying by An. arabiensis and culicine mosquitoes.",

author = "Mutero, {C M} and Ng'ang'a, {P N} and P Wekoyela and J Githure and F Konradsen",

note = "Keywords: Ammonium Sulfate; Animals; Anopheles; Crops, Agricultural; Fertilizers; Larva; Oryza sativa; Population Density; Water Microbiology; Water Supply",

year = "2004",

language = "English",

volume = "89",

pages = "187--92",

journal = "Acta Tropica",

issn = "0001-706X",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - Ammonium sulphate fertiliser increases larval populations of Anopheles arabiensis and culicine mosquitoes in rice fields

AU - Mutero, C M

AU - Ng'ang'a, P N

AU - Wekoyela, P

AU - Githure, J

AU - Konradsen, F

N1 - Keywords: Ammonium Sulfate; Animals; Anopheles; Crops, Agricultural; Fertilizers; Larva; Oryza sativa; Population Density; Water Microbiology; Water Supply

PY - 2004

Y1 - 2004

N2 - Field experiments were conducted in central Kenya, to study the effect of ammonium sulphate fertiliser ((NH(4))(2)SO(4)) on mosquito larval populations in rice fields. The experiments used a complete randomised block design having four blocks with two experimental ponds per block, and the fertiliser and control treatments allocated randomly among the ponds. Student's two-sample unpaired t-test was used to test for the significance of differences between the relative counts of larvae in fertiliser and control treatments. The results showed a significant overall increase in the larval populations of An. arabiensis (P<0.01) and culicine mosquitoes (P<0.05), after ponds were treated with the fertiliser. Significantly more fourth instar larvae of An. arabiensis were collected in fertiliser than control plots (P<0.001). An. arabiensis data indicated that the first fertiliser application had the most impact, compared to the second and third applications. This was evident in a significant peak of combined first and second instar An. arabiensis larvae observed 5 days after the first fertiliser application (P<0.05). The studies suggest that ammonium sulphate fertiliser reduces turbidity of water in rice fields, thereby making them visually more attractive for egg-laying by An. arabiensis and culicine mosquitoes.

AB - Field experiments were conducted in central Kenya, to study the effect of ammonium sulphate fertiliser ((NH(4))(2)SO(4)) on mosquito larval populations in rice fields. The experiments used a complete randomised block design having four blocks with two experimental ponds per block, and the fertiliser and control treatments allocated randomly among the ponds. Student's two-sample unpaired t-test was used to test for the significance of differences between the relative counts of larvae in fertiliser and control treatments. The results showed a significant overall increase in the larval populations of An. arabiensis (P<0.01) and culicine mosquitoes (P<0.05), after ponds were treated with the fertiliser. Significantly more fourth instar larvae of An. arabiensis were collected in fertiliser than control plots (P<0.001). An. arabiensis data indicated that the first fertiliser application had the most impact, compared to the second and third applications. This was evident in a significant peak of combined first and second instar An. arabiensis larvae observed 5 days after the first fertiliser application (P<0.05). The studies suggest that ammonium sulphate fertiliser reduces turbidity of water in rice fields, thereby making them visually more attractive for egg-laying by An. arabiensis and culicine mosquitoes.

M3 - Journal article

C2 - 14732240

VL - 89

SP - 187

EP - 192

JO - Acta Tropica

JF - Acta Tropica

SN - 0001-706X

IS - 2

ER -