Check these first
- Inspect the thatch layer for small insects.
- Look for chewed or ragged grass blades.
- Check if the damage is spreading in circular patterns.
Likely causes
Sod webworms
PossibleHow to tell: You will see small brown patches and chewed grass blades. Look for small caterpillars near the soil surface in the evening.
What to do: Apply a lawn safe insecticide labeled for sod webworms. Follow the package instructions for the correct dosage based on your square footage. Water the area lightly after application to help it reach the soil.
Chinch bugs
PossibleHow to tell: These cause irregular yellowing that turns brown, often mistaken for drought stress. Check the thatch layer for tiny black bugs with white wings.
What to do: Use a soap and water drench test to confirm their presence. Apply a targeted insecticide if you find a high population. Keep the grass healthy to help it recover from damage.
Find out what's wrong with your velvet bentgrass
The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
When to worry
Worry if you see large patches of dead grass that do not respond to watering. Small amounts of insect activity are normal in any outdoor lawn.
Stopping it coming back
Maintain a healthy mowing height and avoid excessive thatch buildup to keep pests away. Proper fertilization helps the grass outgrow minor damage.
Velvet bentgrass: pests? Check yours with a photo
Every plant is a little different. Take a photo of your velvet bentgrass and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.
Scan with your phone's camera to get the app
Or go to pocketbotanist.app/get on your phone
Get the app · Or check it from a photo now, free
Questions people ask
- Will pests kill my whole lawn?
- Usually no, but they can cause significant thinning if left untreated. Catching them early is the best way to save your turf.
- Can I use home remedies?
- Some people use soapy water to flush out bugs, but commercial treatments are much more effective for established infestations. Stick to products specifically labeled for lawn use.
More problems with Velvet bentgrass
Back to the Velvet bentgrass guide
This article was generated with AI on from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.

