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Atheta

  • Dalotia coriaria
  • Predatory beetles
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Use for

When to use Atheta?

Use Atheta for the biological control of fungus gnats (Sciara), shore flies (Scatella stagnalis), and western flower thrips (Frankliniella occidentalis).

Pests

Fungus gnats (Sciara), shore flies (Scatella stagnalis), and several thrip species

"The general conditions of Koppert (Koppert B.V. and/or of its affiliated companies) apply. Only use products that are permitted in your country/state and crop. Always comply with the conditions specified in local product registrations. Koppert cannot be held liable for unauthorized use. Koppert is not liable for any loss of quality if the product is stored for longer than recommended and/or under incorrect conditions."

Product details

How does Atheta work?

Atheta beetles rove their surroundings in search of prey, moving through substrate, along drainage systems and on plant leaves. Adults and larvae are active and aggressive predators of sciarid fly (Sciara) and shore fly (Scatella) eggs, larvae and pupae. Adults also prey on the 2nd larval stage and pupae of the western flower thrips (Frankliniella occidentalis). These beetles consume their prey in its entirety.

Because of their flight capability, adults can travel throughout a greenhouse, ensuring good distribution and fast population development. Total development time from egg to adult takes about three weeks at 25ºC. After that period the adult predatory beetle will be active for approx. three weeks. An adult female will lay 8 eggs per day during the first two weeks after maturing.

Mode of action

The predatory beetles, both adults and larval stages, consume their prey in its entirety.

Visual effect

The prey is consumed entirely.

Product specifications

Pack size 1.000; 5.000 rove beetles.
Presentation 1 L tube; 6 L bucket.
Carrier Coconut fiber and buckwheat.

Directions for use

Application Atheta

  • Introduce at least 2 predatory beetles per m² by distributing the content of 1 package (1,000 beetles) into 10 to 20 small piles on the surface of the plant substrate (compost, coconut fibre, rock wool, etc.)
  • Always consult a Koppert Specialist before use.

Application

Release in piles on the growing media. Each pile should contain 50-100 beetles. The beetles are adapt to most growing situations (beds, pots, seedling/cutting propagation areas, etc.) and can easily colonize the area.

Dosage

The dosage of Atheta depends on climate, crop and pest pressure and should always be adjusted to the particular situation. One application at the beginning of the growing cycle, and a smaller re-application at each transplant is sufficient to enable Atheta populations to establish effectively. Dosage may vary from 1 (preventive) to 10 (high curative) individuals/m2. Consult a Koppert advisor or a recognized distributor of Koppert products for advice on the best strategy for your situation.

Environmental conditions

Performs best at a 24-hour average greenhouse temperature of 25°C/77°F. Works at a temperature range of 12-35 °C (53-95 °F). Suitable for mixed peat, cocos peat, rock wool and other growing media with moisture level of 50-80% RH.

Combined use

Can be used in combination with other thrip biocontrol agents as Thripor or Swirski.

Best working conditions Atheta

Dalotia coriaria performs best at a 24-hour average greenhouse temperature of 25°C/77°F.

Handling

Biological beneficials have a very short life expectancy and therefore need to be introduced into the crop as soon as possible after receipt. Failure to do so can have a negative impact on their quality. In case you do need to store Atheta, please follow the instructions below. Koppert B.V. is not liable for any loss of quality if the product is stored for longer and/or under different conditions than recommended.

  • Storage after receipt: Max. 1–2 days
  • Storage temperature: 8–10°C / 46–50°F
  • Storage humidity: RH>85 %.

Storage time after receipt

Use preferably on the day of arrival. If necessary the product can be stored for 1-2 days.

Storage temperature

8–10°C / 46–50°F, RH>85%.

Storage conditions

In the dark.

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