2025 Agronomic Resource Guide_v2 (No Southern BASF)

Tropical Zone

Solutions for Turf-Damaging Insects

White Grubs, Billbugs, and Caterpillars Envu’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 activity and flexibility of Tetrino is perfect for any golf course insect management program.

Target

Timing

Target Life Stage

Product

Notes

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

Water in with 0.125-0.5” for most effective control. Refer to label of specific product for instructions. Sequential applications likely required if white grubs are also problematic An application of Tetrino applied for white grubs will also provide 8-10 weeks of control of fall armyworms. Water in with 0.125-0.5” for most effective control. Refer to label of specific product for instructions Delay watering and mowing for 24 hours after application. Provides immediate knockdown plus residual control for up to 10 weeks depending on rate. An application of Tetrino for white grubs will also provide 8-10 weeks of control of fall armyworms

When adult beetles of billbugs are seen

Billbugs

Larvae

Tetrino ® 32 fl. oz./A or Merit ® 0.4 lbs. ai./A (multiple formulations available)

White Grubs 1

Apply during peak adult

Larvae

When adults are first seen

Caterpillars

Tetrino 16-32 fl. oz./A

Larvae

Follow all label directions and local recommendations

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

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

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