US 2020/0260722 Al  3  Aug. 20, 2020  (Trianthema portulacastrum  ); Pursley,  Florida(Richardia  scabra  ); Radish,  wild(Raphanus raphanistrum  ); Ragweed,  common(Ambrosia artemisiifolia);  Ragweed,  giant(Ambro› sia trifida); Redstem(Ammania auriculata);  Ricefield bul› rush(Scirpus mucronatus);  Sesbania,  hemp(Sesbania exal› tata);  Sharppoint fluvellin*,  (Kickxia elatine);  Shepherd’s  purse(Capsella bursa pastoris);  Sicklepod(Cassia  obtusifo› lia  ); Sida,  prickly(Sida spinosa  ); Smallflower umbrella  sedge(Cyperus difformis);  Smartweed,  Annual(Polygonum  spp.); Smartweed,  Pennsylvania(Polyfonum pennsylvani› cum  ); Sowthistle,  annual(Sonchus oleraceus);  Sprangletop  (Leptochloa fascicularis);  Sun  flower(Helianthus annuus);  Sun  flower(Helianthus  spp.);  Tansymustard(Descurainia  pinnata); Texasweed(Caperonia palustris);  Thistle, Canada  (Cirsium arvense);  Thistle, Russian(Salsola  iberica);  Vel› vetleaf(Abutilan theophrasti);  Wallflower,  bushy(Erysimum  repandum);  Water hyssop  (Bacopa.  spp); Waterhemp, com› mon(Amaranthus rudis);  Waterhemp,  tall2(Amaranthus  tuberculatus); Waterhemp(Amaranthus  spp); Willow herb,  common(Epilobium ciliatum  );  Willowherb(Epilobium cilia› tum  ); Yellowcress,  creeping(Rorippa sylvestris),  or combi› nations thereof.  [0018]  FIG.  1  shows trial data of two inventive composi› tions and a commercial herbicide for control of Yellow  Nutsedge(  Cyperus esculentus  ).  [0019]  The present inventors have found that halosulfu› ron-methyl, may be made more stable in liquid compositions  by formulating those pesticides with particular diluents  and/or surfactants. The liquid compositions generally com› prise halosulfuron-methyl and at least one diluent, and  optionally at least one surfactant and/or rheology modifier.  The diluent, surfactant, and rheology modifier are generally  inert ingredients. The inventors have found, however, that  the presence of certain types of hydroxyl groups on these  [0022]  The following surfactant compounds include the  type of alcohol or hydroxyl group that the inventors have  found leads to instability of halosulfuron-methyl pesticide  compositions:  [0021]  As used herein, the pKa may be estimated by  looking to standard charts showing estimated pKa values for  specific OH groups, such as the following table:  components leads to unstable compositions. The composi› tions described herein lose less than 5% (w/w) of halosul› furon-methyl after storing the liquid composition for 8  weeks at 40°  C. in a sealed container. The compositions may  be applied to any desired environment, such as a lawn,  garden, turf grass, agriculture crops, non-crop areas, or  ornamentals.  [0020]  The presence of certain hydroxyl groups leads to  instability of halosulfuron-methyl pesticide compositions.  However, this instability does not result from the presence of  OH components that are acidic due to adjacent electron  withdrawing groups (e.g., carbonyl, sulfonyl, phosphonyl),  or groups where negative charge is spread over a large  volume of the group (e.g., phenyl). Rather, particular OH  groups having a pKa above 13 have been found to lead to  instability when present in a halosulfuron-methyl composi› tion. In the case of surfactants, where the OH group  resembles ethanol (pKa=16), as in an OH found on a  hydrocarbon chain or at any position on a fatty acid except  the carbonyl group, the inventors have found instability.  Thus, stability may be predicted by the lack of OH groups  on a surfactant compound having an estimated pKa (from  tables) of greater than 13.  BRIEF DESCRIPTION OF THE FIGURES  DETAILED DESCRIPTION OF VARIOUS  ASPECTS OF THE DISCLOSURE  TABLE 1  TABLE 2  Group  Estimated pKa  Sulfuric  Strong Acid  Carboxylic  4  Phosphoric  2.2, 7.2, 12.4  Phenol  10  Glycerol  14.4  Alkana!  15-18  Compounds Leading to Instability  Compound Name  Formula  Ricinoleic Acid  OH  OH  3-Hydroxyoctadecanoic acid  OH 