Billbug
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Billbug Larvae

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Billbug Adult

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Billbug Damage

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Billbug Size

Billbug

Description

White little larvae that look like a grain of rice with a red head found in the soil. Billbugs are laid by a beetle that is a snout type weevil. The Billbug larvae eats the grass roots making it easy to pull up. In the heat of the summer damage can be more severe because the grass has no root system allowing water to move through the plant. Depending on how severe the damage is will depend on the recovering time of the plant and time of year. In some cases in may take until the following spring to fully recover, but most damage that is caught quickly can recover in a few weeks.


Watch a video about Billbugs

Time of Year

Can be found as early in June to late September.

Symptoms

Billbug damage is found in the hot spots of the landscape. Such as by sidewalks or driveways. Damage starts by looking like lawn is in drought stress, but the difference being the spots will look spotty and not uniform as drought stressed lawns will look. If left untreated Billbugs can cause severe problems but if found early can be treated with little to no damage present. 

Treatment

There are a couple of ways to control biilbug. Make sure to have a healthy vigourous lawn and this will help in fighting off damage. Preventative measures can be used if Billbugs have been a problem in the past. Products such as imidacloprid, clothianidin, and chalofenozide are put on early June or late May to prevent these pests from doing too much damage. The hotter the temperatures in the summer the more severe the damge can be. There are also beneficial nematodes that can be used to help contol the billbug. When using chemical control, be sure to read and follow all label directions for any product used.