Coleoptera

Costelytra giveni

curl-grub_1551155029181

How to protect your lawn against Grass Grubs

Help keep your lawn strong and healthy by giving it a weekly deep watering, mowing at a higher level and feeding it regularly with Yates Dynamic Lifter Organic Lawn Food.

What are Grass Grubs

Grass Grubs are the larval stage of the native Bronze (or Brown) Beetle which chew at the roots of plants and lawns. Grass Grub Larvae have a cream body with a light brown head and they vary in size from 6mm to 20 mm as they grow. The tail end of the grub may look darker brown which is due to the soil the grub has ingested during feeding. The grubs feed on plant roots in large numbers and curl up when disturbed. Larvae are most active during mid spring to mid-summer, and can cause severe damage to lawns, gardens and potted plants. Grass Grubs are among the most destructive pasture pests in NZ and are a real challenge for the agricultural sector.

 

Symptoms

Wilting plants despite being well watered and brown patches in lawn which can be easily lifted like a carpet. 

 


Recommended products


More articles

Black Beetle

If your lawn is browning or your plants are suddenly dying, it may be the work of the black beetle or its larvae (grass grubs). Here's how to identify and control black beetles in the lawn and garden.

Armyworm

If the lawn is looking brown, dead or bare in patches, it's likely to be the work of the armyworm. Here's how to identify and control armyworm in your lawn.

Cutworm

If your newly planted seedlings are missing or cut to the ground, it sounds like you may have cutworms in your garden. Here's how to identify and control cutworms in your garden.

Mole Crickets

Uneven lawn surface, together with dying or batch patches in the lawn may be the work of mole crickets. Here's how to protect your lawn from mole crickets.