Expert Problem Solver

Black Turfgrass Ataenius Grub

Black Turfgrass Ataenius Grub
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Bonide Solutions:
On turfgrasses, root-feeding grub; adults
consume soil high in organic matter. You will damage symptoms on the roots of the grass are severed, so blades pull easily.

The adult is a small, black scarab beetle around 6 mm in length that is common around high maintenance golf courses, especially highly watered and fertilized areas. Grubs are very small, around 6 mm in length. It is a native insect that has emerged as a turf pest in the last 30 years.

Adults overwinter in woodlots and start to fly in May to June to deposit eggs in the thatch. The grubs feed and develop over two months with peak damage in late July. Most root injury occurs near the soil-thatch interface. Grubs pupate in the soil and start emerging in early August. There can be two generations a year.