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US Forest Service Research & Development
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  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
You are here: Home / Publications & Products / Patents / Patented Technologies / Forest Insect Technologies / rotecting Plants from Insects by Applying Gypsy Moth Virus

Method of Protecting Plants from Insects by Applying Gypsy Moth Virus with Enhanced polyhedra Production Stability

Gypsy Moth
Gypsy Moth

Patent Status

Patent Numbers: 5,420,031 and 5,462,732

Dates Issued: May 30, 1995 — October 31, 1995

Technology Description

Biological control methods, such as insect viruses, are preferred over broad-spectrum insecticides for managing forests pests due to their reduced adverse environmental impacts and specificity for the target host. The Lymantria dispar nuclear polyhedrosis virus (LdNPV) is the preferred biological mechanism for controlling the troublesome Gypsy Moth. However, widespread use of LdNPV has been costs prohibitive, due to its tendency to mutate into a weaker forms (producing fewer polyhedra) during production.

This invention comprises an improved isolate of the virus that features both enhanced polyhedra production and mutation resistance. This increase in efficacy, along with a reduced tendency to mutate into weaker forms, results in a more cost-effective method of controlling forests insects through targeted biological control.

Potential Commercial Uses

Biological control methods, such as insect viruses, are preferred over broad-spectrum insecticides for managing forests pests due to their reduced adverse environmental impacts and specificity for the target host. The Lymantria dispar nuclear polyhedrosis virus (LdNPV) is the preferred biological mechanism for controlling the troublesome Gypsy Moth. However, widespread use of LdNPV has been costs prohibitive, due to its tendency to mutate into a weaker forms (producing fewer polyhedra) during production.

This invention comprises an improved isolate of the virus that features both enhanced polyhedra production and mutation resistance. This increase in efficacy, along with a reduced tendency to mutate into weaker forms, results in a more cost-effective method of controlling forests insects through targeted biological control.

Licensees/and or industrial cooperators are being sought for this invention

Inventor/Project Leader

James M. Slavicek