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2019 Turfgrass Weed Control for Professionals is now Available

January 28, 2019

As of today the 2019 Turfgrass Weed Control for Professionals is now available. Here is what is new with this edition:

 

Changes from 2018 to 2019 edition of Turfgrass Weed Control for Professionals

 

The following sections were added/modified.

  • 2 states (MD and ND) were added as collaborators to this multi-state publication (now 16 total states).
  • No weeds were added but 21 pictures are being changed/added to provide better weed ID assistance.
  • Several minor modifications were made to the weed control efficacy tables.
  • A new Q&A on “new products added to 2019 edition” was added.
  • Change in annual bluegrass seedhead suppression info in PGR section

 

Herbicides Added

 

Trade Name (product/A)

Common Name (lbs ai/A)

Weeds Controlled

Turfgrasses

Comments

Fahrenheit

(3-12 oz)

 

 

[[W]]

dicamba + metsulfuron          (see label)

broadleaf weeds, ryegrasses

bermudagrass, buffalograss, zoysiagrass

Do not use in cool-season turf. Controls a wide range of broadleaf weeds, ryegrasses, and wild garlic/onion. Add NIS at 0.25% (v/v). Do not plant woody ornamentals in treated areas for 1 year after application.

Sure Power
(2-3.5 pts)

 

[[NY]]

2,4-D +

triclopyr +

fluroxypyr +

flumioxazin
(see label)

broadleaf weeds

Kentucky bluegrass, perennial ryegrass, fine fescue, tall fescue

Do not use on creeping bentgrass or turf with significant annual bluegrass. Controls a wide range of broadleaf weeds. Wait at least four weeks after applying before reseeding or sodding. Avoid broadcast applications when daily high air temperatures are forecasted to exceed 80°F. Adding an adjuvant is not recommended and may increase turf injury risk. This herbicide is quick acting with results visible in 2-3 days.

Manuscript

(9.6-19.2 fl oz)

 

 

[[W]] [[L]]

pinoxaden

(0.03-0.06)

Crabgrass, dallisgrass, ryegrass, thin paspalum

bermudagrass,  zoysiagrass

Specialty herbicide for specific grass control within certain turfgrass species. Use as directed spot treatments to targeted weeds. Tank-mix with Adigor surfactant or MSO at 0.5% to 1.0% (v/v) to increase performance. The formulation contains a safener called cloquintocet-mexyl.

Foundation

(3.25-4 pts)

 

[[NY]]

2,4-D + triclopyr + dicamba + sulfentrazone

(see label)

controls many broadleaf weeds

annual bluegrass, Kentucky bluegrass, perennial ryegrass, fine fescue, tall fescue

Controls a broader spectrum of weeds than 2,4-D alone. Not for use on putting greens or tees. Do not apply when temperatures are greater than 90°F. Provides yellow nutsedge suppression only. For newly seeded areas, delay application until after second mowing. Do not use adjuvants.

Triad Select

(1.8-4.0 pts/A)

2,4-D + MCPA + dicamba

(see label)

controls many broadleaf weeds

annual bluegrass, bermudagrass, creeping bentgrass, fine fescues, Kentucky bluegrass, perennial ryegrass, tall fescue, zoysiagrass

Controls a broader spectrum of weeds than 2,4-D alone. Avoid applications when temperatures are greater than 90°F. Delay reseeding 4 weeks after treatment. Do not apply to newly seeded grasses. Limit of 2 applications per year.

Triad SFZ Select

(2.75-4.0 pts/A)

 

[[NY]]

2,4-D + MCPA + dicamba + sulfentrazone

(see label)

controls many broadleaf weeds

annual bluegrass, bermudagrass, buffalograss, creeping bentgrass, fine fescues, Kentucky bluegrass, perennial ryegrass, tall fescue, zoysiagrass

Controls a broader spectrum of weeds than 2,4-D alone. Not for use on putting greens or tees. Avoid applications when temperatures are greater than 90°F. Delay reseeding 3 weeks after treatment. Do not apply to newly seeded grasses until mown twice. Limit of 2 applications per year. Do not use adjuvants.

Momentum 4-Score
(3.5-4.5 pts)

 

[[NY]]

2,4-D + fluroxypyr + triclopyr + sulfentrazone

(see label)

broadleaf weeds

annual bluegrass, creeping bentgrass, Kentucky bluegrass, perennial ryegrass, fine fescue, tall fescue

Controls a broader spectrum of weeds than 2,4-D alone. Not for use on putting greens or tees. Do not apply when temperatures are greater than 90°F. Provides yellow nutsedge suppression only. For newly seeded areas, delay application until after second mowing. Do not use adjuvants.

Products that are labeled for use in only warm-season grasses (bermudagrass, buffalograss, and zoysiagrass) or predominantly warm-season turf are indicated with this symbol: [[W]]. Do not use these products on cool-season turf except by label directions.

Products with sale and/or use restrictions in New York state or Long Island, New York (Nassau and Suffolk counties) are indicated with this symbol: [[NY]]. Refer to the label for more information.

Products only registered in specific states (primarily those states with significant bermudagrass turf) are indicated with this symbol: [[L]]. Check with your state regulatory agency and local suppliers for availability.

 

Herbicides Table Entries changed

Trade Name (product/A)

Common Name (lbs ai/A)

Weeds Controlled

Turfgrasses

Comments

Xonerate 2SC
(3-6 fl oz)

 

 

 

 

 

[[NY]]

amicarbazone
(0.04-0.09)

annual bluegrass and some broadleaf weeds

bermudagrass, buffalograss, creeping bentgrass, fine fescue, Kentucky bluegrass, perennial ryegrass, tall fescue, zoysiagrass

Do not use on golf course putting greens. Apply in spring for annual bluegrass control. Do not apply in summer or fall. Apply when daily high temperatures are 55-80°F. Irrigate soon after application with 0.1 to 0.2 inches of water. Turf quality of Xonerate 2SC treated areas with >10% annual bluegrass will be temporarily reduced. Do not apply to areas where mefluidide has been applied in the previous three months.

 

 

 

Herbicides added (new ingredient(s) or a new combination)

  • Manuscript (pinoxaden) – bermudagrass, zoysiagrass, St. Augustinegrass (labeled in 9 states in our region)
  • Sure Power (2,4-D ester + triclopyr + fluroxypyr + flumioxazin)
  • Fahrenheit (metsulfuron + dicamba)
  • Triad Select (2,4-D amine + MCPA + dicamba)
  • Triad SPZ Select (2,4-D amine + MCPA + dicamba + sulfentrazone)
  • Momentum 4-Score (2,4-D amine + fluroxypyr + triclopyr + sulfentrazone)
  • Foundation (2,4-D DEA + triclopyr + dicamba + sulfentrazone)

 

Herbicides now listed

  • Boulder 6.3 (triclopyr ester)
  • SUREPYC (sulfentrazone)
  • Scepter (imazaquin)
  • Fahrenheit (metsulfuron + dicamba)
  • SedgeMaster (halosulfuron)
  • Halo 5WDG (halosulfuron) – contains surfactant
  • Halo 75WDG (halosulfuron)
  • E-2 (2,4-D + fluroxypyr + dicamba) – same as Escalade 2 but for sod farms
  • Aim EC (carfentrazone) – for sod farms
  • Topeka (dicamba) – for sod farms
  • Rifle (dicamba) – for sod farms
  • Detonate (dicamba) – for sod farms
  • Strut (dicamba) – for sod farms
  • Panoramic 2SL (imazapic)
  • Patriot (metsulfuron)

 

Herbicides New Formulations

  • Xonerate 2SC (amicarbazone)

 

 

 

 

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Spider Webs are Covering my Lawn

November 6, 2020

Have you noticed a lot of spider webs in yards and golf courses the past week? No it is not some leftover Halloween decorations, and you are not alone, we have had calls from all over Iowa asking about why their yards are or golf courses are covered in spider webs. We are experiencing a moderately common phenomenon called Spiderling hatch.

Spider webs covering a yard
Spider webs cover yards in Iowa

Dr. Donald Lewis (Professor in Entomology) tells us this is a short lived phenomenon, when many baby spiders hatch due to the change to warm temperatures. Due to the time of year, and relatively dry weather conditions turgrass stands are not being mowed or disturbed, so the baby spiders are making all of those spider webs you see and not having anything disturb them. 

This happens periodically in Iowa and here is a link from 2009 about another hatch. Typically it is not as widespread, but the weather conditions and timing allowed most of Iowa to experience this. 

The spiders are harmless and nearly all will die of desiccatin or starvation as there is not enough food for that many spiders to survive this time of year. This will not last long, so don't worry if you are not a fan of having your turfgrass covered in spider webs.

 

Spiderling hatch causing yards to be coverd with spider webs 
Spider webs are covering Iowa lawns

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