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Florida lawns face unique pest pressures — chinch bugs, mole crickets, sod webworms, fire ants, and others. Here is the DIY treatment framework for St. Augustine and Bermuda grass.
Most common Florida lawn pests
1. Chinch bugs (worst in St. Augustine grass)
Tiny black bugs that suck plant juices, causing yellow patches that spread. Most active in hot dry summer.
Treatment: Bifen LP granules to entire lawn, repeat in 30 days.
2. Mole crickets
Burrow in soil, push up small mounds, damage roots. Worst in Bermuda grass.
Treatment: Bait with Mole Cricket Bait or apply Bifen IT spray during evening when crickets surface.
3. Sod webworms
Caterpillar larvae that chew grass blades at night. Causes brown patches.
Treatment: Bifen IT spray to lawn at dusk.
4. Fire ants
Iconic Florida lawn pest. Build characteristic mounds.
Treatment: Two-step approach — broadcast bait (AMDRO) over entire yard, then mound treatment with Taurus SC or boiling water.
Universal lawn treatment with Bifen IT
Bifen IT applied as broadcast spray (1 oz per gallon, sprayed at 1 gallon per 1,000 sq ft) controls most lawn insect pests for 30-90 days. Apply 3-4 times per year.
Diagnose before treating
Different pests cause different damage patterns. Treating chinch bug damage with mole cricket bait wastes money. Always identify the pest first via the soap flush test (squirt soapy water on damaged grass — pests come to surface).
Lawn health basics
- Mow at correct height (St. Augustine 3.5-4 inches, Bermuda 1-2 inches).
- Water deeply 1-2 times per week (not daily shallow watering).
- Fertilize spring and fall with balanced lawn food.
- Healthy grass resists most pest pressure naturally.
Verdict
For Florida lawns, Bifen IT broadcast spray + targeted treatment for specific pests + maintenance fertilization is the basic protocol. Diagnose damage cause before treating to avoid wasted product. Healthy lawn = pest resistance.
Reminder: Always read product labels and follow manufacturer safety instructions.