Harrell's 2026 Agronomic Resource Guide - TEST

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. Solutions for Insects

Product and Use Rate per acre

Application

Good

Better

Best

Ideal for fairways

Ideal for fairways or greens

Ideal for greens

1 st application: April* Peak adult densities Forsythia ½ gold & ½ green 125 to 150 GDD 50 ** 2 nd application: Mid-May Larvae begin entering the soil Rhododendron full bloom 200 to 400 GDD 50 3 rd application: Late May Late larvae clean up 2-3 weeks later Up to 600 GDD 50

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

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

Tetrino ® 32 fl. oz.

Tetrino 32 fl. oz.

Tetrino 32 fl. oz.

Dylox ® 420SL 300 fl. oz.

4 th application: July 2 nd 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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June 2025

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