Active ingredient

Beauveria bassiana strain NPP111B005

Description

Mode of action

Beauveria bassiana strain NPP111B005 is an entomopathogenic fungus utilized as a biological active ingredient for pest control. The mechanism of action is based on the direct contact of fungal spores with the insect's cuticle.

Once attached to the insect host, the spores germinate under suitable conditions, producing hyphae that penetrate the host's integument. Inside, the fungus releases toxins, including beauvericin, which compromise the insect's immune response and physiological functions.

The fungus colonizes the body of the insect, consuming internal tissues and eventually leading to death. This process usually occurs within a few days depending on the environmental conditions and the insect's susceptibility.

Upon the host's death, the fungus grows through the insect cuticle and produces a new layer of spores. These spores can then be spread to other individuals within the population, creating a self-sustaining cycle of control.

This biological action is highly environmentally friendly, providing a sustainable alternative to conventional synthetic insecticides that often lead to chemical resistance and environmental pollution.

What it targets

This strain is effective against a diverse array of insect pests that impact various agricultural and horticultural crops. It is particularly valued for its ability to target pests in both soil and canopy environments.

Primary target groups for this active substance include:

  • Thrips and whiteflies in greenhouse environments.
  • Soil-dwelling pests, including wireworms and white grubs.
  • Various lepidopteran larvae such as armyworms and leafrollers.
  • Mites, including the two-spotted spider mite.

The broad efficacy of NPP111B005 makes it an essential tool for integrated pest management programs, helping to reduce reliance on synthetic chemicals.

By controlling pest populations through natural biological mechanisms, it helps to prevent significant economic damage to yields without harming beneficial insects or the surrounding ecosystem.

Regular applications assist in maintaining pest numbers below economic thresholds, especially in organic production systems where synthetic pesticides are strictly limited.

Rates and timing

Application rates depend on the specific crop, the level of pest infestation, and the delivery method. It can be applied via foliar spray or soil treatment depending on the pest's location.

When applying as a spray, it is critical to ensure thorough coverage of the plant parts. Application during the evening or on cloudy days is recommended to prevent the degradation of spores by UV radiation.

For soil applications, the product must be evenly distributed in the root zone. Proper soil moisture must be maintained to facilitate the growth and establishment of the fungal colonies.

As a natural biological agent, there is typically no pre-harvest interval required, making it highly flexible for use throughout the growing season, including near harvest time.

The frequency of application depends on the pest pressure. In cases of high infestation, sequential applications at intervals of 7 to 14 days may be necessary for effective control.

Restrictions

The main limitation of this bio-insecticide is its sensitivity to environmental factors. Direct sunlight and high UV exposure can significantly reduce the viability of the fungal spores.

Compatibility with chemical fungicides is limited. Because the agent is a fungus itself, it is highly susceptible to chemical fungicides; therefore, these should not be mixed or applied in close succession to avoid killing the biological agent.

Low relative humidity is a major limiting factor, as the fungus requires moisture for germination and effective host infection. Dry conditions can halt the progress of the infection.

Standard personal protective equipment, such as masks and gloves, should be worn during handling to prevent potential respiratory irritation from spore inhalation.

Proper storage is essential to maintain spore vitality. The product should be kept in cool, dark, and dry conditions to ensure it remains effective until the expiration date.

Regulatory

Status in the European Union

Approved in the EU

Approved from
07.06.2017
Approval until
07.06.2027
EU legislation

EU status is for reference only and does not replace national registration in your country.