| 摘要 |
This invention is concerned with a method for destroying undesirable plant life which comprises applying to said plant life a herbicidally toxic amount of a herbicide containing a chemical compound of the formula <IMAGE> wherein R is selected from the group consisting of alkyl having 1 to 3 carbon atoms and alkenyl having 2 to 3 carbon atoms; Z is selected from the group consisting of oxygen and sulfur; X is selected from the group consisting of halogen, lower alkyl, lower alkenyl, lower haloalkyl, lower alkoxy, nitro, amino, lower alkylamino, lower dialkylamino, lower acylamino, N-lower alkyl-N-lower acylamino, lower alkylthio, lower alkylsulfoxide, lower alkyl sulfone, cyano, thiocyano and -N=CHR' wherein R' is selected from the group consisting of hydrogen and lower alkyl; and n is an integer from 0 to 4, provided a maximum of two X's are selected from the group consisting of nitro, amino, lower alkylamino, lower dialkylamino, lower acylamino and N-lower alkyl-N-lower acylamino when n is greater than 2. The term "lower" as used herein means up to about ten carbon atoms.
|
