Good weather boosting crops in Brazil, the U.S. and elsewhere, an extension of the Black Sea grain corridor, and a rising dollar all conspire to extend the downward momentum in most commodities. The exceptions today were soyoil and livestock. The latter saw a new contract high in feeder cattle.   Thus far in this trading week, July corn is down the most, -5.2 percent, July soybeans are -4 percent with slightly larger breaks in coproducts, and the three wheat classes are off -2 percent to -3.6 percent, the latter being July SRW. 

The Black Sea agreement is just a two-month extension and Russia can still throttle down Ukraine’s exports as it has with slowed inspections, but Moscow avoids blame from third countries usi...