INDIGO SPECIALTY PRODUCTS / SPRAY PREPARATION
Spray Water Quality
Compare water quality factors, their effects on herbicides and the remedies in the supplied reference table.
← Mixing & Application SupportWater quality factors
| Water Quality Factor | Effect on Herbicides | Common Affected Herbicides | Remedy |
|---|---|---|---|
| Hardness | Reduced activity via binding | Glyphosate, Glufosinate, 2,4-D | Ammonium sulphate, soft water |
| pH | Degradation or reduced solubility | 2,4-D (alkaline), Glyphosate (basic) | Buffers, acidifiers |
| Turbidity | Adsorption onto particles | Most contact herbicides | Filter or settle water |
| Salinity/TDS | Interference with solubility | Most systemic herbicides | Use clean water or treat TDS |
| Temperature | Reduced solubility/dissolution | Granular or powder formulations | Warm water to ambient temperature |
Water Hardness
Use the supplied chart to compare water hardness classifications. Hardness is expressed as milligrams per litre (mg/L) of calcium carbonate (CaCO3).
| Description of water | Soap lather | Hardness expressed as mg/L of CaCO3 |
|---|---|---|
| Soft | Lots of lather | Less than 50 |
| Moderately soft | 50–75 | |
| Slightly hard | 75–150 | |
| Hard | 150–300 | |
| Very hard | No lather | Greater than 300 |
Spray Water pH & Hardness by Active Ingredient
The colour ratings below reproduce the supplied charts. The Indigo product column identifies products containing the listed active ingredient. Mixtures, salt forms and formulations can differ; product label directions take precedence over the chart. Granular examples are identified and are not spray-tank products. A dash means no corresponding Indigo example has been confirmed.
Water pH & Hardness Response Keys
Water pH Response Key
Effective
This product will be effective at this water pH.
Caution
This product may be subject to alkaline hydrolysis at this pH, label statements suggest that this pH is not ideal, or research suggests that this pH may not be ideal because of its chemistry.
Concern
This product is subject to alkaline hydrolysis at this pH or label statements suggest that this pH is not ideal. Use a buffering agent to correct the water pH before mixing.
Water Hardness Response Key
Not a concern
Water hardness is not a concern with this product.
May be a concern
Water hardness may be a concern since this is a weak acid herbicide. More research is needed.
Concern
Water hardness is a concern. Add ammonium sulfate or another water conditioning agent to prevent hard water antagonism.
Herbicides
| Active ingredient | Indigo product example | Acidic spray water pH 4–6 | Neutral spray water pH 7 | Alkaline spray water pH 8–9 | Water hardness |
|---|---|---|---|---|---|
| 2,4-D amine | — | Effective | Effective | Caution | Concern |
| 2,4-D ester | — | Effective | Effective | Caution | Not a concern |
| Atrazine | — | Effective | Effective | Effective | Not a concern |
| Amicarbazone | — | Effective | Effective | Effective | Not a concern |
| Asulam | — | Effective | Effective | Caution | May be a concern |
| Benefin | — | Effective | Effective | Effective | Not a concern |
| Bensulide | — | Effective | Effective | Effective | Not a concern |
| Bentazon | — | Effective | Effective | Caution | May be a concern |
| Bispyribac-sodium | — | Effective | Effective | Caution | May be a concern |
| Bromoxynil | ProForce Weedblast MAMixture: bromoxynil + MCPA.Indigo label ↗ | Effective | Effective | Caution | May be a concern |
| Carfentrazone | — | Effective | Effective | Caution | Not a concern |
| Chlorsulfuron | — | Caution | Effective | Effective | Not a concern |
| Clopyralid | Warhead TrioMixture: clopyralid + MCPA + diflufenican.Indigo label ↗ | Effective | Effective | Caution | May be a concern |
| Dazomet | ProForce Miticor 980 GGranular soil fumigant; not a spray formulation.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| DCPA | — | Effective | Effective | Effective | Not a concern |
| Dicamba | Contra MMixture: dicamba + MCPA (amine salts).Indigo label ↗ | Effective | Effective | Caution | Concern |
| Diclofop | Destro 375ECContains diclofop-methyl.Indigo label ↗ | Effective | Effective | Caution | Not a concern |
| Dimethenamid | — | Effective | Effective | Effective | Not a concern |
| Diquat | — | Effective | Effective | Caution | Not a concern |
| Dithiopyr | — | Effective | Effective | Effective | Not a concern |
| Ethofumesate | Array 500SCIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Fenoxaprop | — | Effective | Effective | Caution | Not a concern |
| Flazasulfuron | ChikaraIndigo product downloads ↗ | Effective | Effective | Effective | May be a concern |
| Florasulam | — | Effective | Effective | Effective | May be a concern |
| Fluazifop | — | Effective | Effective | Caution | Not a concern |
| Flumioxazin | — | Effective | Effective | Caution | Not a concern |
| Fluroxypyr | — | Effective | Effective | Effective | Not a concern |
| Foramsulfuron | — | Caution | Effective | Effective | Not a concern |
| Glufosinate | — | Effective | Effective | Effective | Not a concern |
| Glyphosate | ProForce Rapid Fire 800SGIndigo label ↗ | Effective | Effective | Effective | Concern |
| Halosulfuron | ProSedge 750DFContains halosulfuron-methyl.Indigo label ↗ | Effective | Effective | Effective | May be a concern |
| Imazaquin | — | Effective | Effective | Effective | Not a concern |
| Imazapic | — | Effective | Effective | Effective | Not a concern |
| Imazosulfuron | — | Effective | Effective | Effective | May be a concern |
| Indaziflam | — | Effective | Effective | Effective | Not a concern |
| Isoxaben | — | Effective | Effective | Effective | Not a concern |
| MCPA amine | Contra MMCPA dimethylamine salt, with dicamba.Indigo label ↗ | Effective | Effective | Effective | Concern |
| MCPA ester | ProForce Weedblast MAMCPA ethylhexyl ester, with bromoxynil.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Mecoprop (MCPP) | — | Effective | Effective | Effective | Concern |
| Mesotrione | — | Effective | Effective | Effective | May be a concern |
| Metolachlor | — | Effective | Effective | Effective | Not a concern |
| Metribuzin | — | Effective | Effective | Effective | Not a concern |
| Metsulfuron | ProForce Met-Force 600WGContains metsulfuron-methyl; industrial herbicide.Indigo label ↗ | Caution | Effective | Effective | May be a concern |
| MSMA | Geronimo 800SLIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Oryzalin | — | Effective | Effective | Effective | Not a concern |
| Oxadiazon | Echelon GGranular herbicide + fertiliser; not a spray formulation.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Pendimethalin | Battalia 435Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Penoxsulam | — | Effective | Effective | Effective | Not a concern |
| Prodiamine | ProForce Onset 10GRGranular herbicide; not a spray formulation.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Pronamide | Checkpoint 500SCPronamide is also called propyzamide.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Pyraflufen ethyl | — | Effective | Effective | Caution | Not a concern |
| Quinclorac | — | Effective | Effective | Effective | Concern |
| Rimsulfuron | — | Effective | Effective | Effective | Not a concern |
| Sethoxydim | — | Effective | Effective | Effective | Concern |
| Siduron | — | Effective | Effective | Effective | Not a concern |
| Simazine | ProForce SimForce 500SCIndustrial herbicide.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Sulfentrazone | — | Effective | Effective | Effective | Not a concern |
| Sulfosulfuron | — | Effective | Effective | Effective | May be a concern |
| Topramezone | — | Effective | Effective | Effective | Not a concern |
| Triclopyr amine | — | Effective | Effective | Effective | May be a concern |
| Triclopyr ester | — | Effective | Effective | Effective | Not a concern |
| Trifloxysulfuron | RecondoContains trifloxysulfuron-sodium.Indigo label ↗ | Caution | Effective | Effective | Not a concern |
| Trifluralin | — | Effective | Effective | Effective | Not a concern |
Fungicides
| Active ingredient | Indigo product example | Acidic spray water pH 4–6 | Neutral spray water pH 7 | Alkaline spray water pH 8–9 | Water hardness |
|---|---|---|---|---|---|
| Acibenzolar-S-methyl | — | Effective | Effective | Caution | Not a concern |
| Azoxystrobin | Azo-Force 250SCIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Boscalid | ProForce Counterattack DuoMixture: boscalid + pyraclostrobin.Indigo product downloads ↗ | Effective | Effective | Effective | Not a concern |
| Captan | — | Effective | Effective | Effective | Not a concern |
| Chloroneb | — | Effective | Effective | Effective | Not a concern |
| Chlorothalonil | ProForce Squadron Weatherace 720SCIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Copper hydroxide + mancozeb | — | Caution | Effective | Effective | Not a concern |
| Cyazofamid | Segway 400SCIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Difenoconazole | — | Effective | Effective | Effective | Not a concern |
| Etridiazole | — | Effective | Effective | Effective | Not a concern |
| Fluazinam | ProForce Clean Sweep TrioMixture: fluazinam + tebuconazole + thiophanate-methyl.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Fludioxonil | — | Effective | Effective | Effective | Not a concern |
| Fluoxastrobin | — | Effective | Effective | Effective | Not a concern |
| Flutolanil | — | Effective | Effective | Effective | Not a concern |
| Fluxapyroxad | — | Effective | Effective | Effective | Not a concern |
| Fosetyl-Al | ProForce Grenadier 800WGContains fosetyl-aluminium.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Iprodione | ProForce Voltar 500SCIndigo label ↗ | Effective | Effective | Caution | Not a concern |
| Mancozeb | — | Effective | Effective | Effective | Not a concern |
| Mefenoxam | ProForce Solitaire 240MEMefenoxam is also called metalaxyl-M.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Metconazole | — | Effective | Effective | Effective | Not a concern |
| Mineral oil + pigment | — | Effective | Effective | Effective | Not a concern |
| Myclobutanil | — | Effective | Effective | Effective | Not a concern |
| PCNB | — | Effective | Effective | Effective | Not a concern |
| Penthiopyrad | — | Effective | Effective | Effective | Not a concern |
| Phosphite | — | Effective | Effective | Effective | Not a concern |
| Polyoxin D | — | Effective | Effective | Effective | Not a concern |
| Propamocarb | ProForce Shrapnel 600SLIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Propiconazole | ProForce Regiment 550ECIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Pyraclostrobin | ProForce Counterattack DuoMixture: pyraclostrobin + boscalid.Indigo product downloads ↗ | Effective | Effective | Effective | Not a concern |
| Tebuconazole | ProForce Tombstone DuoMixture: tebuconazole + trifloxystrobin.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Thiophanate-methyl | ProForce Clean Sweep TrioMixture: thiophanate-methyl + fluazinam + tebuconazole.Indigo label ↗ | Effective | Effective | Caution | Not a concern |
| Triadimefon | — | Effective | Effective | Effective | Not a concern |
| Trifloxystrobin | ProForce Tombstone DuoMixture: trifloxystrobin + tebuconazole.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Triticonazole | — | Effective | Effective | Effective | Not a concern |
| Vinclozolin | — | Effective | Effective | Effective | Not a concern |
Insecticides
| Active ingredient | Indigo product example | Acidic spray water pH 4–6 | Neutral spray water pH 7 | Alkaline spray water pH 8–9 | Water hardness |
|---|---|---|---|---|---|
| Acephate | — | Effective | Effective | Effective | Not a concern |
| Bacillus thuringiensis kurstaki | — | Effective | Effective | Caution | Not a concern |
| Bifenthrin | ProForce Rumbler 100SC InsecticideIndigo label ↗ | Effective | Effective | Caution | Not a concern |
| Carbaryl | — | Effective | Effective | Caution | Not a concern |
| Chlorantraniliprole | ProForce Nexar 200SC InsecticideIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Chlorpyrifos | — | Effective | Effective | Caution | Not a concern |
| Clothianidin | ProForce Scarlet Trio Advanced InsecticideMixture: clothianidin + clofentezine + abamectin.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Cyfluthrin | — | Effective | Effective | Effective | Not a concern |
| Deltamethrin | — | Effective | Effective | Effective | Not a concern |
| Dinotefuran | ProForce Alamo 200SG InsecticideSupplied Alamo label (DOCX) ↗ | Effective | Effective | Effective | Not a concern |
| Fipronil | TermiForce 100SC InsecticideIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Hydramethylnon | — | Effective | Effective | Effective | Not a concern |
| Imidacloprid | ProForce Recruit 200SC InsecticideIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Indoxacarb | Strikezone 200SC InsecticideIndigo label ↗ | Effective | Effective | Caution | Not a concern |
| Lambda-cyhalothrin | — | Effective | Effective | Caution | Not a concern |
| Spinosad | ProForce Curatol 120SC InsecticideIndigo label ↗ | Effective | Effective | Effective | Not a concern |
| Thiamethoxam | Echelon Duo AdvancedGranular herbicide + insecticide + fertiliser; not a spray formulation.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Trichlorfon | — | Effective | Effective | Caution | Not a concern |
Plant Growth Regulators
| Active ingredient | Indigo product example | Acidic spray water pH 4–6 | Neutral spray water pH 7 | Alkaline spray water pH 8–9 | Water hardness |
|---|---|---|---|---|---|
| Ethephon | ProForce Incognito 480SLLabel direction: DO NOT use alkaline water. This takes precedence over the supplied chart’s green alkaline rating.Indigo label ↗ | Effective | Effective | Effective | Not a concern |
| Flurprimidol | — | Effective | Effective | Effective | Not a concern |
| Gibberellic acid | — | Effective | Effective | Caution | Not a concern |
| Mefluidide | — | Effective | Effective | Effective | Not a concern |
| Trinexapac-ethyl | ProForce Amigo 120MEAlso available as Amigo 175EC.Indigo label ↗ | Effective | Effective | Effective | Not a concern |