As Iowa's summer heats up, crops are showing signs of stress from high temperatures and low moisture. Leaves are curling from lack of moisture as few areas of the state have received significant rainfall recently. Many areas receiving measurable rainfall dealt with flooding and erosion as the rain fell in a very short time frame. Alfalfa fields are being affected by large leafhopper populations.
There were 6.5 days suitable for fieldwork, compared to 6.0 days last year at this time. Topsoil moisture rated 15% very short, 39% short, 44% adequate, and 2% surplus across the state. Subsoil moisture rated 7% very short, 22% short, 68% adequate, and 3% surplus.
Oats behind, Corn ahead of last years pace
Oats turning color are at 66%, 7%age points behind last year's 73% and one%age point behind the five-year average. The condition of the oat crop is unchanged from last week at zero% very poor, 4% poor, 22% fair, 60% good, and 14% excellent. Corn tasseled, at 37%, is 3 days ahead of last year's 18% and 6 days ahead of the five-year average of 13%. Corn silked, at 18%, is also 3 days ahead of last year and 5 days ahead of normal. Average corn height is 65 inches, an increase of 14 inches from the previous week. Corn condition is rated at 2% very poor, 5% poor, 21% fair, 53% good, and 19% excellent. Soybeans blooming are at 52%, ahead of last year's 47% and the five-year average of 39%. Seven% of soybeans are setting pods. Soybean condition is 1% very poor, 5% poor, 22% fair, 57% good, and 15% excellent. Twenty-nine% of the second cutting of alfalfa hay is complete, behind last year's 58% and the five year average of 39%. All hay condition is 3% very poor, 12% poor, 38% fair, 40% good, and 7% excellent.
Pasture condition rated 2% very poor, 11% poor, 37% fair, 41% good, and 9% excellent. Pastures are having a hard time keeping up with grazing. Livestock are also showing signs of stress due to heat. Fly populations continue to pester livestock.