is one of the main vectors of barley yellow dwarf virus (BYDV), which affects the grain yield of oats. Several biological control strategies have been studied to control this pest, one of which is Bee Vectoring Technology (BVT) using bumblebees. We tested the efficacy of , as vectored by bumblebees, and a direct spray application of neem (a natural bio-insecticide derived from the tree) on aphids. An assessment of the pest's impact on the plots surveyed in northwestern Ontario revealed incidence rates of 80%. The use of bumblebees as a dispersal agent of significantly reduced the aphid population (0.542 ± 0.147b) compared to the untreated control (0.125 ± 0.069a). The application of diluted neem also showed a reduction in the aphid population (0.708 ± 0.221a). Although the products used controlled the pests, they had no effect on the aphid's natural enemy, the ladybug. Therefore, the dissemination of by the bumblebee leads to a decrease in the vector population and consequently reduces the severity of barley yellow dwarf disease in oat fields.
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| http://dx.doi.org/10.3389/finsc.2025.1468262 | DOI Listing |
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