Fusarium wilt in watermelons: Cultivar selection critical for managing disease | Agriculture


Shoreline and Joy Ride confirmed essentially the most disease of all cultivars examined.

“As the disease severity increased, the overall yield decreased significantly, illustrating the importance of selecting a resistant cultivar in managing fusarium wilt,” Keinath mentioned. “This study provides clear evidence of the importance of cultivar selection in managing fusarium wilt of watermelon.”

Keinath pressured that, together with utilizing disease-free plant materials, cultivar selection is vital in stopping yield loss.

Fusarium wilt of watermelon

Fusarium wilt of watermelon is essentially the most widespread and damaging disease of watermelon in the southeastern United States. When this disease is extreme, many watermelons could not attain a marketable measurement of 10 kilos for seedless and 15 kilos for seeded. Fusarium wilt additionally may end up in the dying of leaves and vines, exposing watermelons to the solar, ensuing in sunburned melons.

Over the years, the fungus that causes fusarium wilt, Fusarium oxysporum, has been in a position to adapt to resistant varieties. This fungus persists indefinitely in soil in the type of resting spores that survive warmth, chilly and drought. The main sources of fusarium are contaminated plant materials, soil and/or seeds. Once fusarium wilt is current in a subject, it could actually produce spores which survive for 5-10 years in the soil and may infect future plantings when situations are favorable. Cool and moist situations in the spring favor the event of disease in younger watermelon crops, however disease signs are sometimes not seen till sizzling and dry situations stress the plant later in the season.