Your browser does not support Javascript!
Back to CAPS Home

Fusarium wilt of watermelon

Fusarium oxysporum f.sp. niveum
Autumn Olive Autumn Olive
Dan Egel, Purdue University


Watermelon (Citrullus lanatus (Thumb.) Matsum. & Nakai), including seeded (diploid) and seedless (triploid) varieties.  No other cucurbit species are affected. 


Commodities Affected:
Fruits and Vegetables



Plants infected with race 2 of Fusarium oxysporum f.sp. niveum may die before producing fruit or be severely stunted, resulting in lower yields.  No varieties of watermelon are resistant to race 2 of Fusarium oxysporum f.sp. niveum, so all watermelon production in Indiana is potentially threatened



Race 2 of Fusarium oxysporum f.sp. niveum has been confirmed in Knox and Gibson Counties and may exist in additional counties.  There exists the potential for Fusarium oxysporum f.sp. niveum race 2 to spread from these counties to other watermelon production areas within Indiana.  Race 2 may also be imported into Indiana via seeds or transplants.