White Grubs and Other Insects in Lawn Turf: Don’t Rush the Application

Now is the time to plan your preventative white grub programs to maximize control. Here’s how:

Timing is everything

• Regardless of what insecticide you use, best practice is to start applications for grubs when you see the first adult beetles in flight (usually late-June to mid-August) depending on your location, since damaging larvae are observed 2-4 weeks after adult beetles
• Most damage comes from animals feeding on larger larvae later in summer or fall, so it makes the most sense to apply later when adults are present to insure control well into the fall

The latest grub control solution from Envu:

• Tetrino^® provides excellent season-long control of all white grub species
• Tetrino also provides excellent knockdown and 6-8+ weeks control of other problematic insects such as billbugs, sod webworms, cutworms or fall armyworms depending on the rate
• Unlike other diamides that require a minimum spray volume per label directions, Tetrino can be applied effectively through ride-on sprayers to lawn turf
• Rates of Tetrino:
  • 32 oz/A applied as a single application during peak adult flight (mid-June through mid-August is recommended to ensure season-long grub control
  • A split application of 16 oz/A + 16 oz/A can be used to target a wider range of pests throughout the season

Status of Merit^®:

• The EPA still has not released the final decision on new restrictions on Merit and we don’t expect this decision to affect labelling for another 12-24 months
• Local jurisdictions are starting to limit neonics so those restrictions usually go into effect immediately
• With Merit, it’s critical to use the full label rate (0.4 lbs ai/A per year) regardless of formulation, but be careful with some combination Merit/fertilizer products because their high label rate equates to less than 0.4 lbs ai/A

Other insects problematic? – Tetrino’s flexibility allows for multiple applications at a variety of rates depending on the insects that are most important:

• Need more info - Read and follow the label recommendations and contact your Envu area sales manager if you need assistance

	Lawn solution sheet - armyworm
	Lawn solution sheet - billbug - warm season
	Lawn solution sheet - white grub - warm season
	Golf solution sheet - billbug - cool season

White grub control is largely weather dependent, so optimizing management strategy is critical (Envu)