Monday, 11 June 2018 09:10

Predatory mites are saving birches

Södra’s nursery in Falkenberg is now using a biological method of pest control for the very first season, which means using beneficial animals instead of traditional chemical pest control. The biological method is more sustainable and creates a better work environment.

Indoor cultivation of birch is new in Sweden, and the greenhouse in Falkenberg was only opened last autumn. The birch seedlings grow well in the greenhouse environment – but pests, such as aphids and thrips, also thrive in the warm and protected environment. Some form of pest control is needed for the seedlings to survive. Biological pest control is a method that uses beneficial animals (such as hymenoptera and predatory mites) to attack the pests instead of using chemicals. The method works well in closed environments like greenhouses, but not outdoors.

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“This will be the first summer the greenhouse has been used for the whole season. A biological method that is more sustainable and creates a better work environment felt like the right choice,” said Johan Henriksson, Nursery Manager at Södra Skogsplantor.

The beneficial animals are delivered in small bags that are hung in the birch seedlings. From here, they fly out and look for the areas that have been attacked. Only the areas under direct attack are targeted. Unlike chemicals, the method leaves no trace on either seedlings or the surrounding soil.

“The sustainability aspect is important for both customers and our owners, and the requirements that we have to meet as suppliers are becoming increasingly clearer in this respect. We must be innovative and find new solutions all the time, and with nature as the architect, this really is a very clever solution,” said Johan Jonsson, Head of Södra Skogsplantor.

Additional Info

Södra was founded in 1938 and is the largest forest-owner association in Sweden, with a membership of more than 51,000 forest owners. We engage in modern and responsible forestry, and operate state-of-the-art mills in which we process our raw material. Net sales in 2017 were 20.5 SEK billion and there were 3,400 employees. Through value-generating relationships and a long-term approach, Södra is leading the way for the future of sustainable forestry

For more information, please contact:

Johan Henriksson, Nursery Manager, Södra Skogsplantor
Tel: +46 (0)70-265 48 93
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

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