
Heavy July rains left 73% of Argentina's Pampas region with 50–300 mm above normal, restoring soil moisture. Wheat sowing reached 6.9 million hectares with a BCR projection near 20 million tonnes.
Chicharrita leafhopper infestations in northern provinces and localized water deficits remain risks, and farmers plan to expand maize area 15–20%.
A large Argentine wheat crop and expanded maize area add to world wheat and corn supply, pressuring prices, while pest or dry-spell losses in the north could partly offset that.
After 334 past bearish weather events, Wheat (SRW) moved a median -0.2% over 5 sessions (47% higher; middle half -1.9% to +1.7%), and -0.2% over 20.
After 357 past bearish weather events, Corn moved a median -0.3% over 5 sessions (44% higher; middle half -2.2% to +1.3%), and -0.5% over 20.
After 324 past neutral weather events, Soybeans moved a median +0.0% over 5 sessions (52% higher; middle half -1.4% to +1.7%), and +0.7% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.