A lack of rain and high temperatures could reduce sunflower and corn harvests in southern Ukraine and parts of the country's central regions, the trading department of Ukraine's largest farmers' union UAC said on Tuesday.
Ukraine is a major European corn grower and exporter and is among the world's leading exporters of sunflower oil.
"We have a risk zone: the south and part of the centre, where a lack of moisture is already being recorded, especially amid persistently high temperatures," it said in a weekly report.
"The plants are entering the flowering stage, and July will determine how much corn and sunflower we harvest, as moisture problems could cut our production," UAC noted.
Ukraine sowed about 4.4 million tons of corn and almost 5 million hectares of sunflower for the 2026 harvest. APK-Inform agriculture consultancy this month forecast the 2026 corn crop at 30.1 million metric tons against 30.9 million tons in 2025.
The consultancy sees the 2026 sunflower harvest at 13.4 million tons versus 10.8 million tons in 2025.