Chinch bugs are some of the most damaging pests for homeowners and turfgrass professionals alike. These tiny little black insects can be hard to see with the naked eye, but given the right amount of time, they can easily devastate entire St. Augustine lawns. A major symptom of chinch bugs is the yellowing in irregular shapes of turfgrass. Damage symptoms often mimic those of drought. Consider conducting a soap flush test for proper identification.

Chinch Bug Prevention
When to Apply:
June or Early JulyWhat to Apply:
Products that contain the active ingredients Trichlorfon, Bifenthrin, Chlorantraniliprole and Carbaryl. Bifenthrin is the most recommended for homeowner usage.
Chinch Bug Treatment
When to Apply:
July, August or SeptemberWhat to Apply:
Products that contain the active ingredients Trichlorfon, Bifenthrin and Carbaryl. Bifenthrin is the most recommended for homeowner usage.
Recommended Products
Spectracide Triazicide
- Broad spectrum insect control that kills over 260 insects on contact
- Easily attaches to the end of your garden hose
Dylox 6.2 Granular Insecticide
- Kills second and third instar grubs on contact, as well as listed surface-feeding and soil insects on product label
- Requires a broadcast or drop spreader for application
Bifen L/P Insecticide Granules
- Offers curative treatment and prevention properties for listed insects on product label
- Requires a broadcast or drop spreader for application
Bifen XTS
- Offers curative treatment and prevention properties for listed insects on product label
- Requires tank mixing
Merit Imidacloprid .5G Granular Insecticide
- Broad-spectrum systemic control
- Requires a broadcast or drop spreader for application
Scotts GrubEx Grub Killer
- One application kills grubs all season long; also treats other listed insects on product label
- Requires a broadcast or drop spreader for application.
