Gemstar LC Insecticidal Virus, 2.5Gl - OMRI - Concentrate

OMRI Listed Insecticidal Virus for Earworm & Budworm

A biological control that only affects the target pest species avoids collateral impact on beneficial insects nearby. Gemstar LC contains a naturally occurring virus that infects and kills larvae of Heliothis and Helicoverpa species, and it's OMRI Listed.

Sold as a 2.5gal concentrate. OMRI Listed.

Key Features & Benefits

• Active ingredient: Helicoverpa zea nuclear polyhedrosis virus — a naturally occurring, species-specific insecticidal virus.
• OMRI Listed — certified for use in organic production.
• Rate: 4 to 10oz per 100 gallons — adjustable rate depending on pest pressure.
• REI: 4 hours — re-entry interval before the treated area can be safely occupied again.
• Controls corn earworm, tomato fruitworm, cotton bollworm, and tobacco budworm — targets Heliothis and Helicoverpa species specifically.

Who Should Use Gemstar LC Insecticidal Virus

This fits growers dealing with corn earworm, tomato fruitworm, cotton bollworm, or tobacco budworm who want an OMRI Listed, species-specific biological control.

About Gemstar LC Insecticidal Virus

Gemstar LC is an OMRI Listed, species-specific insecticidal virus for Heliothis and Helicoverpa larvae control, sold as a 2.5gal concentrate.

Frequently Asked Questions

Is Gemstar LC OMRI Listed?

Yes, Gemstar LC is OMRI Listed, confirming its status for use in organic production. That listing lets certified organic operations include it in their pest-management program.

What pests does Gemstar LC control?

Larvae of Heliothis and Helicoverpa species, including corn earworm, tomato fruitworm, cotton bollworm, and tobacco budworm. Because the virus is species-specific, it targets those pests without broader insect impact.

How does the insecticidal virus work?

Gemstar LC contains a naturally occurring virus that infects and kills the larvae of its target species once they're exposed. That biological mode of action is different from a broad-spectrum chemical insecticide.

What is the application rate?

4 to 10oz per 100 gallons, adjustable depending on your specific pest pressure. The REI is 4 hours after application.

What size does this concentrate come in?

This listing is the 2.5gal concentrate size. Dilute per the label rate before applying.