Description

Abstract: Blue lupine (Lupinus angusriJolius) and white lupine (L albus) became infected with peanut mottle virus (PMV) when planted next to peanuts. In each of 2 yr, more than 80%of lupines were infected with PMV. Incidenae of PMY was very low in lupines planted more than 100mfrom a virussource. Height reduction and yield losses appeared greaser in lupines than occur in PMV-infected peanuts and soybeans. The rate of seed transmission of PMV in white lupine was less than 1%. Infected lupines can provide a vegetative overwintering source of PMV for the next season’s pcanut crop. Destroying peanuts before lupines are planted or planting lupines mare than 100 rn from peanuts may be an effective prevention of PMV epidemics in lupines.