| Summary: | <i>Fusarium oxysporum</i> exhibits insect pathogenicity—however, generalized concerns of releasing phytopathogens within agroecosystems marred its entomopathogenicity-related investigations. In a previous study, soils were sampled from Douro vineyards and adjacent hedgerows. In this study, 80 of those soils were analyzed for their chemical properties and were subsequently co-related with the abundance of entomopathogenic <i>F. oxysporum</i>, after insect baiting of soils with <i>Galleria mellonella</i> and <i>Tenebrio molitor</i> larvae. The soil chemical properties studied were organic matter content; total organic carbon; total nitrogen; available potassium; available phosphorus; exchangeable cations, such as K<sup>+</sup>, Na<sup>+</sup>, Ca<sup>2+</sup>, and Mg<sup>2+</sup>; pH; total acidity; degree of base saturation; and effective cation exchange capacity. Entomopathogenic <i>F. oxysporum</i> was found in 48 soils, i.e., 60% ± 5.47%, of the total soil samples. Out of the 1280 insect larvae used, 93, i.e., 7.26% ± 0.72%, were found dead by entomopathogenic <i>F. oxysporum</i>. Stepwise deletion of non-significant variables using a generalized linear model was followed by a generalized linear mixed model (GLMM). A higher C:N (logarithmized) (<i>p</i> < 0.001) and lower exchangeable K<sup>+</sup> (logarithmized) (<i>p</i> = 0.008) were found significant for higher fungal abundance. Overall, this study suggests that entomopathogenic <i>F. oxysporum</i> is robust with regard to agricultural changes, and GLMM is a useful statistical tool for count data in ecology.
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