Corn futures are trading higher at midday. Strength in the stock market and crude oil, weakness in the dollar, spillover buying from soybeans and planting delay concerns are supporting corn prices. Weekly export sales were strong last week at 52.8 million bushels of old and new-crop, which was above trade expectations. Wet weather and forecasts calling for more rain in the southern and eastern Corn Belt will keep planting delay concerns alive. May is 3 cents higher at $3.96 and December is 2 cents higher at $4.23 3/4.

Soybean futures are up strongly at midsession, led by old-crop months. The bullish weekly export sales report, declining production estimates for Argentina and tight old-crop stocks are supporting the market. Export sales of 43 million bushels of old and new-crop soybeans were above trade expectations. Strength in Asian vegetable oil markets are also supporting soybean oil and the soy complex. May is 29 3/4 cents higher at $10.63 3/4 and November is 13 1/4 cents higher at $9.45 3/4.

Wheat futures are higher at midday. Strength in the stock market, weakness in the dollar and spillover strength from soybeans are supporting wheat futures. Spring wheat planting delays remain a bullish underlying concern. However, gains are being limited by disappointing weekly export sales. Sales of 5.2 million bushels of old-crop and 4 million bushels of new-crop were below trade expectations. In addition, Egypt bought some Canadian wheat instead of from the U.S. CBOT May is 6 cents higher at $5.26 3/4, KCBT May is 4 1/4 cents higher at $5.76 1/2 and MGE May is 3 cents higher at $6.82.

Cattle futures are trading lower at midday. The market is being pressured by spillover weakness from lean hog futures and weaker boxed beef prices on Thursday. Cash trade has not yet developed this week, but ideas of steady at best trade has also kept the futures market under pressure. June is 85 cents lower at $82.10 and August is 83 cents lower at $82.38.

Lean hog futures are down sharply again at midsession. Lower cash hog and pork prices are weighing on futures as packers are having a hard time moving pork amid concern about the H1N1 virus, aka swine flu. Despite assurances that the virus is not spread by pork, several countries have banned or restricted U.S. pork imports. June is $2.30 lower at $64.45 and July is $1.35 lower at $67.50.