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Add Sigma to your regional spray program

Each regional model follows a published fungicide and insecticide program. The Sigma Liquid Foundation Program rides in the same tank at every spray, at weekly rates sized to the interval, with the granular foundation at aerification and topdressing.

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1

Start from your regional program

Pick the program that matches your region and turf. Timing and key targets follow the published BASF and Syngenta regional programs.

2

Add Sigma to every spray

Sigma Bio is a dormant suspension. Put the Sigma liquids in the tank first, then build your fungicide, insecticide or nutrient spray on top.

3

Size the rate to the interval

Weekly rate × weeks between sprays: 2× on a 14-day program, 4× on a 28-day program. Prime early with short intervals.

Warm-season bermudagrass greens · 14–28 day program

South Florida and Puerto Rico

Year-round growth on warm-season greens. The main stresses are long stretches of cloud cover, tropical moisture and heavy seasonal play, with near-daily rain from mid- to late summer.

Fungicide and insecticide timing from the BASF Regional Turf Spray Program S38 · South Florida and Puerto Rico, Warm Season Greens (2021) ↗

12sprays with Sigma
12 fungicide
Download program PDF
JanFebMarAprMayJunJulAugSepOctNovDecProgram spraySigma liquidsSigma granularToday
Program fungicideSigma liquids (darker = more weeks covered)Granular at aerificationLow-rate topdressing window
#TimingSpray on your program · key targetsSigma rateoz / 1,000 ft²: Bio / Mol / Algae / Biochar / Seaweed / K-Ferm
1Jan 15Fungicide Leaf spots, Microdochium patch; Pythium if needed4× weekly1 / 1 / 2 / 2 / 4 / 4
2Feb 15Fungicide Fairy ring, leaf spots, Microdochium patch, take-all root rot4× weekly1 / 1 / 2 / 2 / 4 / 4
3Mar 15Fungicide Fairy ring, take-all root rot4× weekly1 / 1 / 2 / 2 / 4 / 4
4Apr 15Fungicide Fairy ring, take-all root rot4× weekly1 / 1 / 2 / 2 / 4 / 4
5May 15Fungicide Fairy ring, leaf spots, mini ring4× weekly1 / 1 / 2 / 2 / 4 / 4
6Jun 15Fungicide Fairy ring, leaf spots, mini ring4× weekly1 / 1 / 2 / 2 / 4 / 4
7Jul 15Fungicide Fairy ring, leaf spots, mini ring, summer stress4× weekly1 / 1 / 2 / 2 / 4 / 4
8Aug 15Fungicide Fairy ring, leaf spots, tropical weather protection4× weekly1 / 1 / 2 / 2 / 4 / 4
9Sep 15Fungicide Algae, leaf spots, tropical weather protection4× weekly1 / 1 / 2 / 2 / 4 / 4
10Oct 15Fungicide Take-all root rot4× weekly1 / 1 / 2 / 2 / 4 / 4
11Nov 15Fungicide Take-all root rot, winter protection4× weekly1 / 1 / 2 / 2 / 4 / 4
12Dec 15Fungicide Leaf spots, Microdochium patch; Pythium if needed4× weekly1 / 1 / 2 / 2 / 4 / 4

Granular foundation

  • Jun 1 · Summer aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • Aug 1 · Late-summer aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • Mar 1 – Oct 31 · topdressingLow rate 6.9 lb / 1,000 ft² (300 lb / acre) every 30–45 days, rolled in and watered
  • Mar 1 – Oct 31 · every 45 daysDouble Bio rotation: Sigma 0-2-13 Bio 2X SGN 110, 2.3–3.4 lb / 1,000 ft² (100–150 lb / acre). No nitrogen, so it does not push growth

Notes

  • Fungicide sprays are water-in applications in this program; Sigma liquids can ride in the same tank and be watered in with them.
  • Sigma rate = the weekly rate × weeks until the next spray (capped at 4 weeks). Spraying more often? Use the 1× or 2× rate.
  • Seaweed and K-Ferm: low rate on weekly and 14-day sprays; high rate on 3-week and longer intervals, or in heat and drought stress.
Ultradwarf bermudagrass greens · 7–28 day program

Florida

Ultradwarf bermudagrass greens. Winter protection runs October through February; summer protection and fairy ring and Rhizoctonia zeae prevention run March through August, starting when soils stay above 70°F.

Fungicide and insecticide timing from the Syngenta 2027 Putting Greens · Ultradwarf Bermudagrass · Florida ↗

31sprays with Sigma
25 fungicide · 4 insecticide · 2 nutrient
Download program PDF
JanFebMarAprMayJunJulAugSepOctNovDecProgram spraySigma liquidsSigma granularToday
Program fungicideProgram insecticideNutrient spraySigma liquids (darker = more weeks covered)Granular at aerificationLow-rate topdressing window
#TimingSpray on your program · key targetsSigma rateoz / 1,000 ft²: Bio / Mol / Algae / Biochar / Seaweed / K-Ferm
1Jan 4Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5
2Jan 14Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
3Jan 25Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5
4Feb 4Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
5Feb 15Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
6Mar 1Fungicide Fairy ring and Rhizoctonia zeae prevention2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
7Mar 15Fungicide Algae, leaf spot, Rhizoctonia, take-all root rot, bermudagrass decline2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
8Mar 29Fungicide Fairy ring and Rhizoctonia zeae prevention1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5
9Apr 5Insecticide Mole crickets, billbugs, caterpillars1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5
10Apr 12Fungicide Algae, leaf spot, Rhizoctonia, take-all root rot, bermudagrass decline2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
11Apr 26Fungicide Fairy ring and Rhizoctonia zeae prevention2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
12May 10Fungicide Algae, leaf spot, Rhizoctonia, take-all root rot, bermudagrass decline1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5
13May 17Insecticide Billbugs, caterpillars, white grubs1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5
14May 24Fungicide Fairy ring and Rhizoctonia zeae prevention2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
15Jun 7Fungicide Algae, leaf spot, Rhizoctonia, take-all root rot, bermudagrass decline2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
16Jun 21Fungicide Fairy ring and Rhizoctonia zeae prevention2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
17Jul 5Fungicide Algae, leaf spot, Rhizoctonia, take-all root rot, bermudagrass decline2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
18Jul 19Fungicide Fairy ring and Rhizoctonia zeae prevention2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
19Aug 2Fungicide Algae, leaf spot, Rhizoctonia, take-all root rot, bermudagrass decline; Pythium2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
20Aug 16Fungicide Fairy ring and Rhizoctonia zeae prevention2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
21Aug 30Nutrient spray Nutrient spray (no program fungicide this window)2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
22Sep 13Nutrient spray Nutrient spray (no program fungicide this window)2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
23Sep 27Insecticide Mole crickets, billbugs, caterpillars1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5
24Oct 4Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
25Oct 19Insecticide Billbugs, caterpillars, white grubs1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5
26Oct 25Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5
27Nov 1Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
28Nov 15Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
29Nov 29Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
30Dec 13Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
31Dec 27Fungicide Leaf spot, Pythium blight, bermudagrass decline, algae1× weekly0.25 / 0.25 / 0.5 / 0.5 / 0.5 / 0.5

Granular foundation

  • Jun 1 · Summer aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • Aug 1 · Late-summer aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • Mar 1 – Oct 31 · topdressingLow rate 6.9 lb / 1,000 ft² (300 lb / acre) every 30–45 days, rolled in and watered
  • Mar 1 – Oct 31 · every 45 daysDouble Bio rotation: Sigma 0-2-13 Bio 2X SGN 110, 2.3–3.4 lb / 1,000 ft² (100–150 lb / acre). No nitrogen, so it does not push growth

Notes

  • Nematodes: on a spring or fall nematicide program, apply the Sigma liquids 3 days after the nematicide to support root rebound (sting and root-knot sites).
  • Sigma rate = the weekly rate × weeks until the next spray (capped at 4 weeks). Spraying more often? Use the 1× or 2× rate.
  • Seaweed and K-Ferm: low rate on weekly and 14-day sprays; high rate on 3-week and longer intervals, or in heat and drought stress.
Bermudagrass greens, semi-dormant in winter · 14–28 day program

Central and North Texas

Bermudagrass greens that go semi-dormant. Weather swings quickly: winters can be cold and icy or cloudy and wet for weeks; summers run from hot and humid to hot and dry.

Fungicide and insecticide timing from the BASF Regional Turf Spray Program S24 · Central and North Texas, Bermudagrass Greens (2021) ↗

15sprays with Sigma
11 fungicide · 4 nutrient
Download program PDF
JanFebMarAprMayJunJulAugSepOctNovDecProgram spraySigma liquidsSigma granularToday
Program fungicideNutrient spraySigma liquids (darker = more weeks covered)Granular at aerificationLow-rate topdressing window
#TimingSpray on your program · key targetsSigma rateoz / 1,000 ft²: Bio / Mol / Algae / Biochar / Seaweed / K-Ferm
1Jan 15Fungicide Algae, leaf spots, Microdochium patch; Pythium as needed4× weekly1 / 1 / 2 / 2 / 4 / 4
2Feb 15Fungicide Fairy ring, leaf spots, Microdochium patch, take-all root rot2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
3Mar 1Nutrient spray Nutrient spray (no program fungicide this window)2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
4Mar 15Nutrient spray Nutrient spray (no program fungicide this window)2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
5Apr 1Fungicide Fairy ring, leaf spots, mini ring4× weekly1 / 1 / 2 / 2 / 4 / 4
6May 1Fungicide Fairy ring, leaf spots, mini ring4× weekly1 / 1 / 2 / 2 / 4 / 4
7Jun 1Fungicide Fairy ring, leaf spots, mini ring4× weekly1 / 1 / 2 / 2 / 4 / 4
8Jul 1Fungicide Fairy ring, leaf spots, mini ring, summer stress4× weekly1 / 1 / 2 / 2 / 4 / 4
9Aug 1Fungicide Algae, leaf spots, tropical weather protection4× weekly1 / 1 / 2 / 2 / 4 / 4
10Sep 1Fungicide Algae, leaf spots, take-all root rot4× weekly1 / 1 / 2 / 2 / 4 / 4
11Oct 1Fungicide Leaf spots, spring dead spot, take-all root rot4× weekly1 / 1 / 2 / 2 / 4 / 4
12Nov 1Fungicide Leaf spots, spring dead spot, take-all root rot, winter protection4× weekly1 / 1 / 2 / 2 / 4 / 4
13Dec 1Fungicide Leaf spots; Pythium as needed2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
14Dec 15Nutrient spray Nutrient spray (no program fungicide this window)2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
15Dec 29Nutrient spray Nutrient spray (no program fungicide this window)2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1

Granular foundation

  • May 20 · Spring aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • Jul 15 · Summer aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • Apr 1 – Sep 30 · topdressingLow rate 6.9 lb / 1,000 ft² (300 lb / acre) every 30–45 days, rolled in and watered
  • Apr 1 – Sep 30 · every 45 daysDouble Bio rotation: Sigma 0-2-13 Bio 2X SGN 110, 2.3–3.4 lb / 1,000 ft² (100–150 lb / acre). No nitrogen, so it does not push growth

Notes

  • Program lists February/March as one window; it is shown here in mid-February.
  • Sigma rate = the weekly rate × weeks until the next spray (capped at 4 weeks). Spraying more often? Use the 1× or 2× rate.
  • Seaweed and K-Ferm: low rate on weekly and 14-day sprays; high rate on 3-week and longer intervals, or in heat and drought stress.
Cool-season bentgrass and Poa greens · 14 day program

New England

Cool-season greens in CT, MA, ME, NH, NY, RI and VT. Disease pressure usually runs mid-April to late October: anthracnose and dollar spot all season, with patch diseases, Pythium and fairy ring concentrated in summer.

Fungicide and insecticide timing from the BASF Regional Turf Spray Program N9 · New England, Greens Cool Season (2021) ↗

15sprays with Sigma
15 fungicide
Download program PDF
JanFebMarAprMayJunJulAugSepOctNovDecProgram spraySigma liquidsSigma granularToday
Program fungicideSigma liquids (darker = more weeks covered)Granular at aerificationLow-rate topdressing window
#TimingSpray on your program · key targetsSigma rateoz / 1,000 ft²: Bio / Mol / Algae / Biochar / Seaweed / K-Ferm
1Apr 15Fungicide Dollar spot, pink snow mold2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
2May 1Fungicide Dollar spot, leaf spot, pink snow mold2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
3May 15Fungicide Brown patch, dollar spot, fairy ring, summer patch2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
4Jun 1Fungicide Anthracnose, brown patch, dollar spot, fairy ring, leaf spot2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
5Jun 15Fungicide Anthracnose, dollar spot, fairy ring, Pythium, summer patch, brown patch2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
6Jul 1Fungicide Anthracnose, brown patch, summer patch, Pythium, dollar spot2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
7Jul 15Fungicide Anthracnose, brown patch, summer patch, fairy ring, Pythium, dollar spot2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
8Aug 1Fungicide Anthracnose, brown patch, summer patch, dollar spot, Pythium2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
9Aug 15Fungicide Anthracnose, brown patch, summer patch, fairy ring, Pythium, dollar spot2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
10Sep 1Fungicide Anthracnose, brown patch, summer patch, dollar spot, Pythium2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
11Sep 15Fungicide Anthracnose, brown patch, summer patch, fairy ring, Pythium, dollar spot2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
12Oct 1Fungicide Dollar spot2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
13Oct 15Fungicide Dollar spot, leaf spot2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
14Nov 1Fungicide Dollar spot2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
15Nov 15Fungicide Dollar spot, snow mold2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1

Granular foundation

  • Apr 20 · Spring aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • Sep 1 · Late-summer aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • May 1 – Oct 15 · topdressingLow rate 6.9 lb / 1,000 ft² (300 lb / acre) every 30–45 days, rolled in and watered
  • May 1 – Oct 15 · every 45 daysDouble Bio rotation: Sigma 0-2-13 Bio 2X SGN 110, 2.3–3.4 lb / 1,000 ft² (100–150 lb / acre). No nitrogen, so it does not push growth

Notes

  • Prime the system early: short-interval Sigma sprays from the first program spray in April.
  • Sigma rate = the weekly rate × weeks until the next spray (capped at 4 weeks). Spraying more often? Use the 1× or 2× rate.
  • Seaweed and K-Ferm: low rate on weekly and 14-day sprays; high rate on 3-week and longer intervals, or in heat and drought stress.
Bentgrass greens · 14 day program

California

Bentgrass greens on a year-round 14-day rotation: Microdochium patch in winter, then anthracnose, dollar spot, brown patch and Pythium through summer, with fairy ring and take-all in spring.

Fungicide and insecticide timing from the Syngenta 2027 Greens · Bentgrass · California ↗

21sprays with Sigma
18 fungicide · 3 nutrient
Download program PDF
JanFebMarAprMayJunJulAugSepOctNovDecProgram spraySigma liquidsSigma granularToday
Program fungicideNutrient spraySigma liquids (darker = more weeks covered)Granular at aerificationLow-rate topdressing window
#TimingSpray on your program · key targetsSigma rateoz / 1,000 ft²: Bio / Mol / Algae / Biochar / Seaweed / K-Ferm
1Jan 15Fungicide Microdochium patch4× weekly1 / 1 / 2 / 2 / 4 / 4
2Feb 15Fungicide Spring disease clean-up, Microdochium patch4× weekly1 / 1 / 2 / 2 / 4 / 4
3Mar 15Fungicide Dollar spot, leaf spot, Rhizoctonia, take-all, fairy ring4× weekly1 / 1 / 2 / 2 / 4 / 4
4Apr 16Fungicide Dollar spot, leaf spot, Rhizoctonia, take-all, Pythium, fairy ring2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
5Apr 30Fungicide Anthracnose, dollar spot, leaf spot, Rhizoctonia2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
6May 14Fungicide Anthracnose, dollar spot, Rhizoctonia, take-all, leaf spot, Pythium, fairy ring2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
7May 28Fungicide Anthracnose, dollar spot, Rhizoctonia, leaf spot, Pythium2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
8Jun 11Fungicide Anthracnose, algae, dollar spot, brown patch, fairy ring2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
9Jun 25Fungicide Anthracnose, algae, dollar spot, brown patch, Pythium2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
10Jul 9Fungicide Anthracnose, algae, dollar spot, brown patch, Pythium blight2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
11Jul 23Fungicide Anthracnose, algae, dollar spot, brown patch, Pythium blight2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
12Aug 6Fungicide Anthracnose, dollar spot, brown patch, Pythium2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
13Aug 20Fungicide Anthracnose, algae, Pythium blight, brown patch2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
14Sep 3Fungicide Anthracnose, algae, dollar spot, brown patch, Pythium2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
15Sep 17Fungicide Anthracnose, dollar spot, Rhizoctonia, Pythium2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
16Oct 1Fungicide Dollar spot, leaf spot, Microdochium patch2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
17Oct 15Fungicide Dollar spot, Microdochium patch, Pythium4× weekly1 / 1 / 2 / 2 / 4 / 4
18Nov 19Fungicide Winter diseases incl. snow mold and anthracnose2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
19Dec 3Nutrient spray Nutrient spray (no program fungicide this window)2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
20Dec 17Nutrient spray Nutrient spray (no program fungicide this window)2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1
21Dec 31Nutrient spray Nutrient spray (no program fungicide this window)2× weekly0.5 / 0.5 / 1 / 1 / 1 / 1

Granular foundation

  • Mar 20 · Spring aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • Sep 20 · Fall aerificationSigma 4-4-4 Bio SGN 110, medium rate 12.5 lb / 1,000 ft² (545 lb / acre), worked in at aerification
  • Apr 1 – Oct 31 · topdressingLow rate 6.9 lb / 1,000 ft² (300 lb / acre) every 30–45 days, rolled in and watered
  • Apr 1 – Oct 31 · every 45 daysDouble Bio rotation: Sigma 0-2-13 Bio 2X SGN 110, 2.3–3.4 lb / 1,000 ft² (100–150 lb / acre). No nitrogen, so it does not push growth

Notes

  • Nematodes: if greens are on a nematicide program, apply the Sigma liquids 3 days after the nematicide to support root rebound.
  • Sigma rate = the weekly rate × weeks until the next spray (capped at 4 weeks). Spraying more often? Use the 1× or 2× rate.
  • Seaweed and K-Ferm: low rate on weekly and 14-day sprays; high rate on 3-week and longer intervals, or in heat and drought stress.
Rate key

Sigma liquid rates by spray interval

From the Foundation Program letter: rates are set per acre per week. Multiply by the weeks between sprays.

Product7-day14-day21-day28-dayoz / acre / week
Sigma BioDormant inoculum0.250.50.75111
Sigma MolassesShort-term food: sugars0.250.50.75111
Sigma MicroalgaeMid-range food: lipids and proteins0.511.5222
Sigma Biochar 5mLong-term home: aggregation, moisture0.511.5222
Sigma SeaweedLong-term food: carbon, translocator0.51342244 on 21+ day intervals
Sigma K-FermBioactive K uptake0.51342244 on 21+ day intervals

oz per 1,000 ft² per spray. Seaweed and K-Ferm: the low rate (22 oz / acre per week, 0.5 oz / 1,000 ft²) on 7 and 14 day programs. On 3-week and longer intervals, or in arid conditions and heat stress, use the high rate (44 oz / acre per week, 1 oz / 1,000 ft²), even on short intervals.

Your tank

Calculate a spray

Tank order

  1. Fill the tank one-third with water and start agitation.
  2. Add Sigma Bio, Molasses, Microalgae, Biochar 5m, Seaweed, then K-Ferm.
  3. Build the scheduled spray on top: granular soluble or liquid nutrients, then W-A-L-E-S (wettable powders and dry flowables, agitate, liquid flowables, emulsifiable concentrates, surfactants).
  4. Water in within 36 hours. Watch for tank partners at pH 8 or higher.
Tank mixing instructions (PDF)

Sigma Foundation Program products are not fungicides or insecticides and do not replace them; they are applied as a companion in the same tank. Disease and insect product choices remain the superintendent's. Sigma AgriScience is not affiliated with BASF or Syngenta; their programs are referenced for timing only and linked at the source. Always jar test, confirm state registration, and read and follow label directions.

Documents

Download the regional programs

All documents
Spray program · Warm-season bermudagrass greensCompanion spray program · South Florida & Puerto Rico

Sigma at every spray of the South Florida and Puerto Rico fungicide program: 12 sprays with rates, plus the granular foundation.

PDF · 3 pages · 0.4 MB
Open PDF
Spray program · Ultradwarf bermudagrass greensCompanion spray program · Florida ultradwarf

Sigma at every spray of the Florida fungicide program: 31 sprays with rates, plus the granular foundation.

PDF · 3 pages · 1.2 MB
Open PDF
Spray program · Bermudagrass greensCompanion spray program · Central & North Texas

Sigma at every spray of the Central and North Texas fungicide program: 15 sprays with rates, plus the granular foundation.

PDF · 3 pages · 1.3 MB
Open PDF
Spray program · Cool-season bentgrass and Poa greensCompanion spray program · New England

Sigma at every spray of the New England fungicide program: 15 sprays with rates, plus the granular foundation.

PDF · 3 pages · 1.0 MB
Open PDF
Spray program · Bentgrass greensCompanion spray program · California

Sigma at every spray of the California fungicide program: 21 sprays with rates, plus the granular foundation.

PDF · 3 pages · 1.1 MB
Open PDF
Liquid · mixingLiquid tank mixing instructions

Weekly spray rates, the order to add Sigma liquids, and the W-A-L-E-S sequence for your spray.

PDF · 1 page · 0.2 MB
Open PDF
Program · golfFoundation Program letter 2026

Granular and liquid Foundation Program: products, roles, rates and the 7- to 30-day interval note.

PDF · 3 pages · 1.1 MB
Open PDF