Gardentalk — Mounting best defense against root maggot attack

Damage to a turnip caused by root maggot larvae is shown in this image from a UAF Cooperative Extension Service flyer. Note the scars of surface feeding and entrances to feeding tunnels within the root.
A UAF Cooperative Extension Service flier shows damage to a turnip caused by root maggot larvae. Note the scars of surface feeding and entrances to feeding tunnels within the root. (Courtesy UAF Cooperative Extension Service)

A perennial Juneau garden pest is back.

Root maggot larvae are just waiting for this month’s warm weather before worming their way into Juneau gardeners’ vegetables.

Master Gardener Ed Buyarski said the larvae attack the roots of cabbage, radish, kale, rutabaga, cauliflower, broccoli and turnips.

In warm weather, their leaves wilt because their damaged roots cannot pull up enough moisture. Root maggot larvae burrow into the roots and leave tell-tale holes and tracks.

Buyarski said the best way to ward off root maggots is encircling your vegetables with Remay or another landscaping fabric with slits cut to allow a transplant or seedling to grow through while also preventing flies from laying eggs at the base of the plant. Buyarski also is experimenting with human hair clippings.

Listen to the May 10 edition of Gardentalk:

The UAF Cooperative Extension Service has a flier on root maggot which you can read here.

Sign up for The Signal

Top Alaska stories delivered to your inbox every week

Site notifications
Update notification options
Subscribe to notifications