Abstract: A herbicidal composition containing as an active ingredient a compound of the formula ##STR1## wherein R.sub.0 represents a hydrogen atom or a lower alkyl group, and R.sub.1, R.sub.2 and R.sub.3 each represent a hydrogen or halogen atom, or a lower alkyl, lower alkoxy or lower alkenyloxy group, which is especially useful for application to aquatic rice paddies, and novel compounds of formula (I) wherein R.sub.0, R.sub.1, R.sub.2 and R.sub.3 have the same meanings as defined above, provided that R.sub.1, R.sub.2 and R.sub.3 do not represent hydrogen atom at the same time.

Abstract: Chemical pruning, and contact compositions for the selective inhibition of suckering in plant species subject thereto, particularly tobacco, said compositions comprising as an active species a lower alkane diol, especially 1,3-butanediol.

Abstract: There is provided a method for the preemergence and postemergence control of undesirable plant species by the application of a herbicidally effective amount of a 1,2,4-trialkyl disubstituted pyrazolium salt to the foliage of said undesirable plant species, and to soil containing seeds thereof.

Abstract: A method of stimulating the growth of roses, particularly in greenhouses, by applying to the rose bushes N,N-di-n-propyl-4-trifluoromethyl-2,6-dinitroaniline, known generally as trifluralin, in combination with 2,4-dichlorophenoxyacetic acid (2,4-D). The method also comprises applying trifluralin and 2,4-D in combination with cacodylic acid.