Publications for:

pest = Macrophomina phaseolina
crop = Sunflower (Helianthus annuus)
country = U.S.A. (mid N)

found 2 publications:

2011

First report of charcoal rot caused by Macrophomina phaseolina on sunflower in Illinois
Plant Disease (2011) 95 (10), p. 1318
publishers website - pestinfo wiki

2002

First report of charcoal rot (Macrophomina phaseolina) on sunflower in North and South Dakota
Plant Disease (2002) 86 (8), p.923
publishers website - pestinfo wiki