Tuttle Mealybugs
Tuttle Mealybugs: How to Protect Your Zoysia Lawn
Tuttle mealybugs are a growing problem for zoysia grass in Arkansas, with outbreaks increasing since 2016. These pests are hard to control because they hide in thatch and resist common insecticides. Here’s what you need to know to manage them effectively:
Why Are Tuttle Mealybugs a Problem?
🪲 Increasing Outbreaks – More reports since 2016, possibly due to more zoysia plantings or natural spread.
🌱 Thatch Buildup – Dense thatch layers make infestations worse by shielding mealybugs from insecticides and predators.
❄️ Seasonality – Infestations peak in late summer and fall but go dormant in winter, making spring the best time for management.
⚠️ Pesticide Resistance Risk – Overuse of the same insecticides (especially neonicotinoids) could lead to resistance.
How to Control Tuttle Mealybugs
✂️ Manage Thatch – Use a mechanical DeThatcher or Power Rake in spring to reduce hiding spots and improve insecticide effectiveness.
🛡️ Time Your Treatments – If an infestation is present, apply insecticide (ideally within 2 weeks of dethatching).
💧 Use Systemic Insecticides – These products move through the plant’s sap, so mealybugs ingest them while feeding. Avoid contact-kill products.
🔄 Rotate Chemicals – Alternate between different insecticide classes to prevent resistance.
Take Action Early
Preventive maintenance in the spring is the best way to protect your Zoysia lawn. Thatch control and strategic insecticide use will help keep these pests in check before they become a bigger issue. If you suspect an infestation, act fast to stop them from spreading!