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- Title
Influence of pesticides, soil temperature and moisture on entomopathogenic nematodes from southern Benin and control of underground termite nest populations.
- Authors
BAIMEY, Hugues; ZADJI, Lionel; AFOUDA, Leonard; MOENS, Maurice; DECRAEMER, Wilfrida
- Abstract
The influence of three pesticides on the viability and infectivity of four Beninese isolates of entomopathogenic nematodes (EPN), Heterorhabditis indica Ayogbe1, H. sonorensis Azohoue2, H. sonorensis Ze3, and Steinernema sp. Bembereke, was determined. The impact of both soil temperature and soil moisture on the virulence of these EPN to Trinervitermes occidentalis was investigated in laboratory assays. The effect of EPN-infected Galleria mellonella larvae on underground populations of Macrotermes bellicosus was also examined. All tested Heterorhabditis species were more tolerant to glyphosate and fipronil than the Steinernema species. Heterorhabditis sonorensis Azohoue2, showed the best results with 63.2% termite mortality at a soil temperature of 35°C. The increase of soil moisture to 20% (w/w) did not negatively influence the virulence of tested EPN. The underground populations of 71% or 60% treated nests were controlled by H. sonorensis Azohoue2- or H. indica Ayogbe1-infected G. mellonella larvae, respectively.
- Subjects
PESTICIDE residues in food; SPRAYING &; dusting in agriculture; ABIOTIC environment; PEST control; AGRICULTURAL chemicals; THERMODYNAMIC state variables
- Publication
Nematology, 2015, p1
- ISSN
1388-5545
- Publication type
Article
- DOI
10.1163/15685411-00002923