Corn eases from highs, soy at four-week peak on U.S. crop concerns

* Corn falls after two-day rally, soybeans at four-week high

* Slow maturity of U.S. corn crop seen delaying harvest

* Wheat hovers near three-week peak

(Adds detail, quotes, changes dateline/byline) SINGAPORE/PARIS, Sept 7 (Reuters) - Chicago corn futures slid on Thursday, giving up some of the recent gains that lifted the market to a two-week high in the previous session on concerns over slow maturity of the U.S. crop while soybean prices rose to a four-week high in light trade. Wheat edged lower after four sessions of gains, trading not far from Wednesday's peak at close to a three-week high. The Chicago Board Of Trade's most-active corn contract was down 0.35 percent at $3.59-3/4 a bushel at 1122 GMT after climbing in the previous session to $3.62 a bushel, the highest since Aug. 23. Wheat slipped by 0.1 percent to $4.45 a bushel and soybeans were up 0.5 percent at $9.76-1/4 a bushel after hitting $9.77-1/2, the highest since Aug. 10. "U.S. Midwest weather is providing a sympathetic soundtrack to analysts cutting their U.S. (corn) yield forecasts," said Tobin Gorey, director of agricultural strategy at Commonwealth Bank of Australia. "The forecasts will be tested against the USDA's next crop report." Corn is drawing support from concerns about slow crop maturity that could delay the start of the harvest and leave crops vulnerable to adverse weather. The U.S. Department of Agriculture said in a weekly report late on Tuesday that 12 percent of the U.S. corn crop was mature, behind the five-year average of 18 percent. Forecasts predicted dry weather across much of the Midwest for the next 10 days, potentially stressing the maturing U.S. soybean crop. Traders said that activity on the soybean market was low because of Brazil's Independence Day public holiday. Brazil is expected to export a record 65 million tonnes of soybeans in 2018, though the country's overall output could fall, industry group Abiove said on Wednesday in its first forecast for next season. The expected arrival of hurricane Irma in the southeast of the United States next week could also hit some soybean and corn crops and hamper exports. "Traders are also monitoring the Irma hurricane as its trajectory could hit the U.S. south-eastern coast, surely causing logistical issues," French consultancy Agritel said.

Prices at 1122 GMT

Last Change Pct End Ytd Pct Move 2016 Move CBOT wheat 445.50 -0.25 -0.06 408.00 9.19 CBOT corn 359.75 -1.25 -0.35 352.00 2.20 CBOT soy 976.25 5.25 0.54 1004.00 -2.76 Paris wheat Dec 162.00 0.25 0.15 175.00 -7.43 Paris maize Nov 159.00 -0.25 -0.16 170.00 -6.47 Paris rape Nov 369.25 -0.50 -0.14 383.25 -3.65 WTI crude oil 49.04 -0.12 -0.24 53.72 -8.71 Euro/dlr 1.20 0.01 0.53

Most active contracts - Wheat, corn and soy US cents/bushel, Paris futures in euros per tonne

(Reporting by Naveen Thukral; Editing by Richard Pullin and David Goodman)