A bee smoker sits on a honey super at a beehive near Mildura, Victoria, Australia, on Wednesday, Sept. 23, 2015. Bees, responsible for an estimated $15 billion of crop output in the U.S. alone, play an essential role in almond production. With the nut fetching record prices, the insects have become the asset to own -- or steal -- in Australia's biggest almond-producing region. Photo credit: Carla Gottgens / Bloomberg via Getty Images.
Farmer Matt Wiggiem looks toward the sunset after clearing debris from a Case IH 7230 combine harvester in Princeton, Illinois, U.S., on Thursday, Sept. 24, 2015. Soybean futures for November delivery fell 0.9% on the Chicago Board of Trade after reaching $8.92, highest for most-active contract since Sept. 16. Photo credit: Daniel Acker / Bloomberg via Getty Images.
Motorists ply along Singapore's central expressway blanketed by smog from agricultural fires in neighbouring Sumatra island in Indonesia on September 29, 2015. The Pollutant Standards Index, which measures air quality, climbed to 'very unhealthy' levels in Singapore, according to the National Environment Agency. Photo credit: AFP PHOTO / ROSLAN RAHMAN / Getty Images.
An Afghan man with his son lead a flock of sheep at a livestock market ahead of the sacrificial Eid al-Adha festival in Herat on Septmber 23, 2015. Muslims across the world are preparing to celebrate annual festival of Eid al-Adha or the festival of sacrifice which marks the end of the Hajj pilgrimage to Mecca and commemorates prophet Abraham's readiness to sacrifice his son to show obedience to God. Photo credit: AFP PHOTO / Aref Karimi / Getty Images.
Employees walk on a bridge towards the Viterra Inc. Cascadia terminal, owned by Glencore Plc, on Burrard Inlet in Vancouver, British Columbia, Canada, on Tuesday, Sept. 29, 2015. Glencore Plc is considering selling a minority stake in its agriculture business as part of the Swiss miner and commodity trader's wider plan to reduce its $30 billion of debt by about a third. A sale would mark a retreat by Glencore, less than five months after saying it sought to expand in agriculture following the success of its C$6.1 billion ($4.6 billion) purchase of Canadian grain trader Viterra Inc. in 2012. Photo credit: Ben Nelms / Bloomberg via Getty Images.