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Abstract
The results showed also that mixtures of fertilizers + insecticides at LC25 resulted in a potentiation effect. Potassium sulphate when mixed with the two tested concentration of insecticides resulted in high levels of potentiation against the tested nematode larvae. Ammonium sulphate and mono-superphosphate when mixed with the height concentration (LC50) of the tested insecticides (except ammonium sulphate + pirimiphos–methyl) induced an additive effect.