Herbicidal 4-trifluoromethyl-3-cyanoalkoxy-4-nitro diphenyl ethers

摘要

Compounds of the formula <IMAGE> wherein X is a hydrogen atom, a halogen atom, a trihalomethyl group, an alkyl group, or a cyano group, Y is a hydrogen atom, a halogen atom, or a trihalomethyl group, and Z is a divalent alkylene group, AND COMPOSITIONS CONTAINING THESE COMPOUNDS EXHIBIT HERBICIDAL ACTIVITY.