The lawn care knowledge base
Identification, care, and treatment guides written by certified lawn care professionals.
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Diagnose Your Lawn Problem
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Recently Published
Repair grub-damaged lawn by raking out dead grass, loosening the top inch of soil, overseeding at your species' recommended rate, and keeping moist for 2 to 3 weeks. Treat for grubs first, then repair 2 weeks later.
The best grub killer for most lawns is Scotts GrubEx (preventive, apply May to June) or BioAdvanced 24 Hour Grub Killer Plus (curative, apply August to September when grubs are active). Dylox is the fastest-acting curative option.
Kill active grubs with trichlorfon (Dylox) applied in August to September when grubs are small and feeding near the surface. Water in immediately. Overseed damaged areas 2 weeks after treatment.
Apply grub preventer in May to June before beetle eggs hatch. Chlorantraniliprole products can go down as early as April. Water in with half an inch of irrigation within 24 hours of application.
Brown patch is a fungal lawn disease that creates circular tan patches during hot humid weather (85+ day, 65+ night). Most common in tall fescue. Water only in the morning, avoid summer nitrogen, and apply fungicide at first sign.
Moles are insectivores that tunnel through lawns eating grubs and worms, leaving raised ridges and volcano mounds. Trapping is the most effective removal method. Grub treatment helps but doesn't guarantee moles leave because they also eat earthworms.
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