Sunn Hemp

Sunn Hemp is a tropical legume that can produce 120 lbs/ac of nitrogen and transfer residual phosphorous and potash from the subsoil to the topsoil. In just 60 days, sunn hemp can grow up to 6 feet tall, creating up to 4 tons of organic matter. Primarily used in cover crop summer mixes after small grains, sunn hemp is an excellent forage for grazing mixes. Sunn hemp is excellent at weed suppression and has been shown to reduce soybean cyst nematode. Well-drained, sandy soils with a pH between 5 and 8.2 are preferred for planting sunn hemp with a soil temperature of 65°F – sunn hemp will terminate at 28°F and below.

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Key Benefits

  • Reduce Soybean Cyst Nematode

  • Weed Suppression

  • Substantial Bio-Mass

Technical Information

Erosion Control
Forage Quality
Nutrient Scavenging
Quick Growth
Soil Building
Weed Suppression
Winter Hardiness
Nitrogen Produced 120 LBS/AC
Seeding Rate LBS/AC Drilled: 6 – 10
Broadcast: N/A
Aerial: N/A
Seeding Depth ¾ – 2″
Minimum Germination Temperature 65° F
Interseed Not Recommended
Seeds/LB 15,000

Corn Plantings

Trade Name Common Name Standard Rate/AC Half-Life (days) Notes
Accent 75DF/Steadfast75DF nicosulfuron/nicosulfuron + rimsulfuron 0.66 oz/0.75 oz 21
Atrazine 4L atrazine 1-2 qt 15-90
Balance Pro 4L/Balance Flexx 2L isoxaflutole 3 fl oz/6 fl oz 50 – 120
Callisto 4L (includes Acuron, Acuron Flexi, Hales GT, Harness Max, Instigate, Lexar, Lumax, Resicore, Revulin, Solstice, Zemax, etc.) mesotrione 3-6 fl oz 10 – 50 Sequential applications increase the potential for injury
Capreno 3.45SC tembotrione + thiencarbazone 3 fl oz 15
Clarity/Banvel 4S (DiFlexx, Distinct, Engenia, Status, XtendiMax/FeXapan) dicamba 16-24 fl oz 5-14 Wait 120 days
Corvus 2.63SC isoxaflutole + thiencarbazone 5.6 fl oz 50-120
Harmony 50WDG thifensulfuron ⅛ oz 12 Wait 45 days
Laudis 3.5SC (DiFlexx Due) tembotrione 3 fl oz 14 Field bioassay recommended
Metribuzin 75DF (Sencor) metribuzin 0.33 lb ai 14-60
Peak 57WG (and Spirit) prosulfuron 1 oz 9-152
Permit/Sandea 75DF halosulfuron ⅔ oz 9-27
Prowl H2O 3.8CS pendimethalin 3 pt 44 Mid-Atlantic areas have not witnessed carryover
Python 80WDG (Hornet and SureStart flumetsulam 1 oz 14-120
Simazine 4L (Princep) simazine 1-2 qt 60
Stinger 3S (Hornet, Resicore, SureStart) clopyralid 5 oz 40

Soybean Plantings

Trade Name Common Name Standard Rate/AC Half-Life (days) Notes
Authority 75DF (Authority First, BroadAxe, Sonic, Spartan) Sulfentrazone 4 oz 32-302
Classic 25DF (Authority XL, Canopy, Envive, Fierce, Fierce XLT, Synchrony, Trivence, Valor XLT, etc.) Chlorimuron 0.5-2 oz 40
FirstRate 84WDG (Authority First, Sonic) Cloransulam 0.3 to 0.6 oz 8-33
Harmony 50WDG Thifensulfuron ⅛ oz 12 Wait 45 days
Metribuzin 75DF (Sencor) Metribuzin 0.33 lb ai 14-60
Prowl H2O 3.8CS Pendimethalin 3 pt 44  Mid-Atlantic areas have not witnessed carryover
Python 80WDG Flumetsulam 1 oz 14-120 Wait 9 months
Reflex 2E/Flexstar 1.88E (Warrant Ultra) Fomesafen 1.5 pt 100
Scepter 1.5AS Imazaquin 0.66 pt 60-90
Select 2E Clethodim 10 oz 3 Wait 30 days
Valor 51WDG (Afforia, Envive, Fierce, Surveil, Trivence, Valor XLT, etc.) Flumioxazin 2.5 oz 12-20

Technical Information

Erosion Control
Forage Quality
Nutrient Scavenging
Quick Growth
Soil Building
Weed Suppression
Winter Hardiness
Nitrogen Produced 120 LBS/AC
Seeding Rate

LBS/A

Drilled: 6 – 10
Broadcast: N/A
Aerial: N/A
Seeding Depth ¾ – 2″
Min. Germ. F° 65° F
Interseed Not Recommended
Seeds/LB 15,000

Corn Plantings

swipe for additional information

Trade Name Common Name Standard Rate/AC Half-Life (days) Notes
Accent 75DF/Steadfast75DF nicosulfuron/nicosulfuron + rimsulfuron 0.66 oz/0.75 oz 21
Atrazine 4L atrazine 1-2 qt 15-90
Balance Pro 4L/Balance Flexx 2L isoxaflutole 3 fl oz/6 fl oz 50 – 120
Callisto 4L (includes Acuron, Acuron Flexi, Hales GT, Harness Max, Instigate, Lexar, Lumax, Resicore, Revulin, Solstice, Zemax, etc.) mesotrione 3-6 fl oz 10 – 50 Sequential applications increase the potential for injury
Capreno 3.45SC tembotrione + thiencarbazone 3 fl oz 15
Clarity/Banvel 4S (DiFlexx, Distinct, Engenia, Status, XtendiMax/FeXapan) dicamba 16-24 fl oz 5-14 Wait 120 days
Corvus 2.63SC isoxaflutole + thiencarbazone 5.6 fl oz 50-120
Harmony 50WDG thifensulfuron ⅛ oz 12 Wait 45 days
Laudis 3.5SC (DiFlexx Due) tembotrione 3 fl oz 14 Field bioassay recommended
Metribuzin 75DF (Sencor) metribuzin 0.33 lb ai 14-60
Peak 57WG (and Spirit) prosulfuron 1 oz 9-152
Permit/Sandea 75DF halosulfuron ⅔ oz 9-27
Prowl H2O 3.8CS pendimethalin 3 pt 44 Mid-Atlantic areas have not witnessed carryover
Python 80WDG (Hornet and SureStart flumetsulam 1 oz 14-120
Simazine 4L (Princep) simazine 1-2 qt 60
Stinger 3S (Hornet, Resicore, SureStart) clopyralid 5 oz 40

Soybean Plantings

swipe for additional information

Trade Name Common Name Standard Rate/AC Half-Life (days) Notes
Authority 75DF (Authority First, BroadAxe, Sonic, Spartan) Sulfentrazone 4 oz 32-302
Classic 25DF (Authority XL, Canopy, Envive, Fierce, Fierce XLT, Synchrony, Trivence, Valor XLT, etc.) Chlorimuron 0.5-2 oz 40
FirstRate 84WDG (Authority First, Sonic) Cloransulam 0.3 to 0.6 oz 8-33
Harmony 50WDG Thifensulfuron ⅛ oz 12 Wait 45 days
Metribuzin 75DF (Sencor) Metribuzin 0.33 lb ai 14-60
Prowl H2O 3.8CS Pendimethalin 3 pt 44  Mid-Atlantic areas have not witnessed carryover
Python 80WDG Flumetsulam 1 oz 14-120 Wait 9 months
Reflex 2E/Flexstar 1.88E (Warrant Ultra) Fomesafen 1.5 pt 100
Scepter 1.5AS Imazaquin 0.66 pt 60-90
Select 2E Clethodim 10 oz 3 Wait 30 days
Valor 51WDG (Afforia, Envive, Fierce, Surveil, Trivence, Valor XLT, etc.) Flumioxazin 2.5 oz 12-20