The population growth of aphids can be sometimes very fast, leading to great damage in several crops. It is therefore very important to locate the aphids and take necessary measures. Biobest offers a whole series of parasitoids and predators against aphids.

• Introduce 50 to 100 Adalia larvae per m² in hot spots.

• The jute sachets with larvae of Adalia bipunctata are suspended in trees, shrubs or bruches. The number of sachets needed will depend on factors such as severity of pest infestations, density of the crown or brush, trunk circumstance, etc.

Several kinds of beetle larvae can cause a lot of damage in grass fields and lawns. These larvae are also known as 'grubs'. The garden chafer is the most commonly occurring species.

• The optimal period when to use this product starts around mid-July and lasts until the end of September. Sometimes, it is possible to apply B-Green earlier or later, depending of the climate.
  The most important factors for application of this product are:

1. A minimum soil temperature of 12°C
2. The soil has be kept moist during minimum 2 weeks
3. Active larvae must also be present

• Application rate: 1 million nematodes per m²

Slugs can devour the equivalent of half their body weight within 24 hours. The damage they cause can occur both aboveground and underground.

• The soil or compost to be treated should be moist (if necessary, first moisten). Soil should be kept moist for at least 2 weeks after application.
• It is recommended to apply Phasmarhabditis-System in the evening.
• It is not recommended to use Phasmarhabditis-System on heavy clay or water-logged soil. Do also avoid frozen soils.
• Soil temperature should be between 5°C and 20°C (15°C is optimal)
• Dose curative: 300.000 nematodes/m².

The horse chestnut leafminer, Cameraria ohridella, is a pest that is causing more and more damage in horse chestnut trees.

The pheromone for the horse chestnut leafminer can be used in combination with a Funnel trap. The pheromone attracts males, which are then captured in the trap. This makes it possible to follow the evolution of the pest population and to take action if necessary.
 

Adult weevils feed at night producing telltale notches around the edges of leaves and flowers. The damage is most severe when caused by the voracious larvae, feeding on roots. Heterorhabditis-System provides rapid and effective control of vine weevil.
 

• There are two critical periods of application. The first period is April-May when larvae start pupating; the second around the end of August and beginning of September.
  The most important factors for application of this product are:

1. A minimum soil temperature of 12°C
2. The soil has to be kept moist during minimum 2 weeks.
3. Active larvae must also be present.
    

• Application rate: 1 million nematodes per m².