Viriin-NSh

A Biological Shield Against the Gypsy Moth

In forestry and horticulture, controlling the gypsy moth population requires tools that do not turn the ecosystem into a "dead zone." Virin-NSh, manufactured by Kharkivlisozakhyst (DSLP), is a highly specialized viral insecticide designed for precision targeting. Unlike broad-spectrum chemical pesticides, it affects only the caterpillars of a specific pest, leaving beneficial entomophages, birds, and bees unharmed.

Why choose a biological agent over chemicals

• Mechanism of action: The product contains the nucleopolyhedrosis virus. Upon entering the caterpillar's system, it triggers an infection that spreads rapidly through the colony, leading to its natural collapse.
• Ecological profile: Classified as hazard class 4, it ensures minimal impact on the environment. This makes it an optimal choice for areas where aggressive chemicals are prohibited or undesirable, such as public parks, water protection zones, and dense forest areas.
• Efficiency: Virin-NSh is effective even at low dosages. Its viral nature allows it to persist within the pest population for a period, providing a sustained control effect.

Application and Practical Tips

Virin-NSh is supplied as a suspension, which simplifies the preparation of spray solutions. However, it is essential to remember that this is a "live" biological product: efficacy depends entirely on proper timing. The ideal application window is during the early larval stages, when the caterpillars are most vulnerable. A minor drawback is its sensitivity to environmental conditions—direct sunlight can reduce viral activity—so applications should ideally be performed during early morning or late evening hours.

For professional forestry management and farms focused on sustainable agriculture, this product remains one of the most reliable tools for biological control, backed by years of field experience in the unique conditions of Ukrainian forests.