2022 FL EOP Resource Guide

Large patch can be extremely damaging in zoysia grass, but can be controlled with fall applications of Densicor ® or Mirage ® Stressgard ® . (Bayer)

Large patch can affect bermudagrass, Seashore Paspalum, and other warm-season grass (Bayer).

Large Patch Timing for large patch prevention is based on university research and begins in the fall when the average soil temperature at a 2-inch depth taken at 11 am is 72-75°F for five consecutive days.

Application

Product and Use Rate per 1,000 sq ft

1st app. (Fall) 72-75°F soil temp 2nd app. (Fall) 28 days later

Densicor ® 0.196 fl oz or Mirage ® Stressgard ® 1 fl oz Densicor 0.196 fl oz or Mirage Stressgard 1 fl oz Densicor 0.196 fl oz or Mirage Stressgard 1 fl oz

3rd app. (Spring)

Satisfaction Guarantee The Bayer Large Patch Program protects turf with preventative applications in the fall. You will have confidence in your large patch control from fall through June 1, 2023. If your Bayer Large Patch Program performance expectations are not met, just contact your Bayer Distributor or Bayer Area Sales Manager. Any disease breakthrough by large patch that meets the program guidelines will be resolved.

White grubs are best controlled with Tetrino ® or Merit ® applied when adult beetles are first seen in mid-summer. (Bayer)

Preventative white grub control will help eliminate damage from animal foraging. (Bayer)

White Grubs, Billbugs, and Caterpillars Bayer’s newest insecticide, Tetrino ® , offers quick knockdown and long-term residual control of larvae white grubs, and billbugs as well as damaging caterpillars like black cutworms and fall armyworms. The broad-spectrum of activity and flexibility of Tetrino is perfect for any golf course insect management program.

Target

Timing

Target Life Stage

Product

Notes

Tetrino ®2 16-32 fl oz/A or Merit ®3 0.4 lbs ai/A (multiple formulations available) Tetrino 2 16-32 fl oz/A or Merit 3 0.4 lbs ai/A (multiple formulations available including on fertilizer)

When adult beetles of targeted white grubs are seen or trapped (usually July 1st - August 15th)

Water in with 0.125-0.5” of water for most effective control.

White Grubs 1

Larvae

Refer to label of specific product for instructions

When adult beetles of billbugs are seen (usually May 1st - June 15th)

Water in with 0.125-0.5” of water for most effective control.

Billbugs

Larvae

Refer to label of specific product for instructions

When adults are first seen

Delay watering and mowing for 24 hours after application

Caterpillars

Larvae

Tetrino 2 16-32 fl oz/A

1 The Bayer Preventative White Grub Control Program will give you confidence in your white grub control through Fall 2023. If your Bayer Preventative White Grub Control Program performance expectations are not met, just contact your Bayer Distributor or Bayer Area Sales Manager. 2 Apply no more than 64 fl oz/A/yr of Tetrino. 3 Apply no more than 0.4 lbs ai/A/yr of imidacloprid, regardless of formulation.

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