Harrell's 2026 Agronomic Resource Guide - TEST

Transition Zone

Spring Dead Spot In spite of the name, spring dead spot is a fall/winter disease, so applications begin in fall when average soil temperatures at 2” depth fall below 75ºF for five consecutive days when taken at 11:00 am. These applications should be watered-in with 0.125”. The Envu program below has a satisfaction guarantee and if your expectations are not met, please contact your Envu Distributor or Envu Area Sales Manager.

Product and Use Rate per 1,000 sq. ft.

Application

Good

Better

Best

Ideal for fairways

Ideal for fairways or greens

Ideal for greens

Rayora ® 1.4 fl. oz. or Mirage ® Stressgard ® 2 fl. oz. Rayora 1.4 fl. oz. or Mirage Stressgard 2 fl. oz.

1 st app. (Fall) <72°F soil temp

Tarvecta TM 0.7 fl. oz.

Resilia TM 4 fl. oz.

2 nd app. (28 days later)

Tarvecta 0.7 fl. oz.

Tarvecta 0.7 fl. oz.

PRO TIP : Applying broad-spectrum products like Resilia TM to putting greens offers comprehensive protection in the fall, targeting not only spring dead spot but also take-all root rot, Pythium root rot, and pathogenic nematodes

Solutions for Insects

Annual Bluegrass Weevils

Annual bluegrass weevil is spreading south and west from the northeast US. These programs provide extended control of annual bluegrass weevils plus provides season-long control of white grubs and caterpillars. Phenological indicators provide only a guide in determining if an application is warranted at a given time and do not replace onsite scouting. For best results immediately water in applications targetting larvae with a 0.125” of irrigation.

Product and Use Rate per acre

Application

Good

Better

Best

Ideal for fairways

Ideal for fairways or greens

Ideal for greens

1 st app. Peak adult densities (Forysthia 1/2 gold & 1/2 green)

Triple Crown ® 35 fl. oz. or Suprado 128 fl. oz.

Talstar ® 20 fl. oz. or Suprado ® 128 fl. oz.

2 nd app. Larvae begin entering the soil (Rhododendron full bloom)

Tetrino ® 32 fl. oz.

Tetrino 32 fl. oz.

Tetrino 32 fl. oz.

3 rd app. 2-3 weeks later. Late larvae clean up

Dylox ® 420SL 300 fl. oz.

4 th app. 2nd generation larvae

Tetrino 32 fl. oz.

Tetrino 32 fl. oz.

Tetrino 32 fl. oz.

Follow all label directions and local recommendations

PRO TIP : Detecting adult ABW in mower baskets can help determine application timing. However, ABW can survive mowing, so discard clippings from infested greens or fairways as far away as possible

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