Abstract: There are provided novel nitroguanidine and cyanoguanidine compounds. A method of dessicating and defoliating plants by applying to the foliage thereof certain nitroguanidine or cyanoguanidine compounds and a method for the selective preemergence control of undesirable broadleaf weeds and grasses in the presence of graminaceous crops are disclosed.

Abstract: Novel substituted phenyl and benzyl nitroguanidine and phenyl and benzyl cyanoguanidine compounds. Method for increasing crop yield, inhibiting logding of graminaceous crops, and inducing cytokinin-like responses in crop plants with said novel guanidine compounds and derivatives thereof, as well as methods for inhibiting deterioration and/or extending the shelf life of harvested fruit, vegetables, and ornamentals are disclosed.

Abstract: Novel substituted phenyl and benzyl nitroguanidine and phenyl and benzyl cyanoguanidine compounds. Methods for increasing crop yield, inhibiting lodging of graminaceous crops, and inducing cytokinin-like responses in crop plants with said novel guanidine compounds and derivatives thereof, as well as methods for inhibiting deterioration and/or extending the shelf life of harvested fruit, vegetables, and ornamentals are disclosed.

Abstract: There are provided novel nitroguanidine and cyanoguanidine compounds. A method of dessicating and defoliating plants by applying to the foliage thereof certain nitroguanidine or cyanoguanidine compounds and a method for the selective preemergence control of undesirable broadleaf weeds and grasses in the presence of graminaceous crops are disclosed.

Abstract: This invention relates to a method for controlling undesirable monocotyledonous and dicotyledonous plant species by applying to the foliage thereof or to soil containing seeds or other propagating organs of said plant species, a herbicidally-effective amount of a pyridazine compound. The invention also relates to novel herbicidally-effective pyridazine compounds.

Abstract: Novel substituted phenyl and benzyl nitroguanidine and phenyl and benzyl cyanoguanidine compounds. Methods for increasing crop yield, inhibiting lodging of graminaceous crops, and inducing cytokinin-like responses in crop plants with said novel guanidine compounds and derivatives thereof, as well as methods for inhibiting deterioration and/or extending the shelf life of harvested fruit, vegetables, and ornamentals are disclosed.

Abstract: The invention relates to a method to influence, alter or control the growth, development and/or life cycle of desirable and undesirable plants, comprising: applying to same a biologically effective amount of certain substituted quinazolinones.The invention also relates to certain novel quinazolinones, useful to influence, alter or control the growth, development and/or life cycle of desirable and undesirable plants.

Abstract: The invention is novel 4-(pyrazolyl)-4H-1,2,4-triazoles, the preparation thereof including their salts, and a method for controlling undesirable plant species therewith.

Abstract: This disclosure describes herbicidal methods for the pre- and postemergence control of undesired mono- and dicotyledonous plants using substituted imidazo[1,5-d]-as-triazin-4(3H)-ones and substituted imidazo[1,5-d]-as-triazine-4(3H)-thiones.

Abstract: The invention is a novel class of dithiindicarboximido, dithiolanedicarboximido, thiapyrandicarboximido and pyrandicarboximido derivatives represented by the formula: ##STR1## wherein X is CH.sub.2 or S; Z is S, O or SO, provided that when Z is O, X cannot be S; Y is --COOR.sub.3, --CONR.sub.4 R.sub.5, --CONHNR.sub.6 R.sub.7, --CONHN.sup..sym. R.sub.6 R.sub.7 R.sub.7 .cndot.halide.sup..crclbar., CN, --CONHOH or --COR.sub.10 ; n is 0 or 1; R.sub.1 and R.sub.2 each represent alkyl C.sub.1 -C.sub.4, or when taken together with the carbon to which they are attached form cycloalkyl C.sub.4 -C.sub.8 or methyl-substituted cycloalkyl C.sub.4 -C.sub.9 ; R.sub.3 is hydrogen or alkyl C.sub.1 -C.sub.4 ; R.sub.4 and R.sub.5 each represent hydrogen, alkyl C.sub.1 -C.sub.4, phenyl, monohalophenyl, monoalkyl(C.sub.1 -C.sub.4)phenyl or monoalkoxy(C.sub.1 -C.sub.4)phenyl; R.sub.6 and R.sub.7 are alkyl C.sub.1 -C.sub.2 ; R.sub.8 is hydrogen, alkyl C.sub.1 -C.sub.4, phenyl, monohalophenyl, monoalkyl(C.sub.1 -C.sub.

Abstract: The present invention relates to novel substituted-1-phenol-4-sulfonamides and salts thereof. It also relates to a method for controlling undesirable plant species with said compounds, and particularly to a novel method for selectively controlling wild oats with said compounds by contacting the seeds or foliage of said wild oat plants with a herbicidally effective amount thereof.