Xanthomonas vasicola pv. holcicola

streaky spot

Bacterium holcicola, Phytomonas holcicola, Pseudomonas holcicola, Xanthomonas campestris pv. holcicola, Xanthomonas holcicola

Africa: Cote d'Ivoire, Ethipia, Gambia, Madagascar, Niger, South Africa, Togo; Asia: Bangladesh, India, Iran, Kazakhstan, Pakistan, Philippines, Thailand; Europe: France, Romania, Russia, Ukraine; North America: Mexico, USA; Oceania: Australia, New Zealand, Solomon Islands; South America: Argentina, Brazil, Venezuela.

AZ, AR, IA, KS, MN, MT, NE, NM, ND, OK, OR, SD, TX, UT, VA, WA, WY

2025-10-08

bacterium

Korea

Main: sorghum, sudan grass, millet; Other: corn

XANTHO

Xanthomonas vasicola pv. holcicola causes bacterial leaf streak or blight in sorghum. Infected plants develop water-soaked streaks along leaves that later become necrotic, potentially reducing photosynthesis and crop yield. The pathogen is not seedborne and has no known insect vectors. Spread occurs primarily through rain splash, overhead irrigation, and mechanically with infected plant tissue. The bacterium can survive on crop residues and wild grasses, serving as a source of inoculum for subsequent seasons.