Heteromask® Beneficial Nematodes – White Grub Control

Heteromask® is our recommended biological control for all types of white grubs, delivering powerful, chemical-free control for lawns, landscapes, orchards, turf, and agricultural systems. Formulated with Heterorhabditis bacteriophora, Heteromask is especially effective against soil-dwelling beetle larvae and root-feeding pests, making it an essential tool for white grub infestations and preventative IPM programs.

Heteromask Spray is easy to apply using the Nema-Jet Sprayer, watering cans, pressure sprayers, or injection systems, allowing for flexible use across large and small treatment areas. These naturally occurring, insect-parasitizing nematodes actively seek out pests in the soil and provide targeted control without harming people, pets, plants, or beneficial organisms.

Active Nematode Species

• Heterorhabditis bacteriophora

Target Pests Controlled

Heteromask is highly effective against white grubs and other soil-dwelling insects, including:

• Banana Moths

• Billbugs

• Black Vine Weevils

• Citrus Root Weevils

• Grape Root Borers

• Small Hive Beetles

• Strawberry Weevils

White Grubs, including:

• European Chafers

• Japanese Beetles

• Oriental Beetles

Application Instructions

• Mix Heteromask contents with cold water and allow to sit for 15 minutes

• Water the treatment area before and after application

• Remove any screens or filters from sprayers prior to use

• Apply using a coarse spray, agitating periodically to keep nematodes suspended

Storage & Shelf Life

• Shelf life: 3 weeks

• Storage: Refrigerate at 38°F (3°C) to retain full potency until the marked expiration date

Safety

Heteromask nematodes are safe for people, pets, plants, and beneficial insects, including bees, earthworms, and lady beetles. While non-toxic, the inert carrier is not intended for consumption and may cause digestive upset if ingested. Keep out of reach of children.

Compatibility

Compatible with most common herbicides, insecticides, fungicides, and other beneficial controls, making Heteromask easy to integrate into existing pest management programs.