New damage to silver birch caused by weevils

Summary

The goal of this project is to identify the species of weevils causing damage on birch seedlings after planting, better understand its impact on seedling survival and growth, and to test the efficacy of different treatments including environmentally-friendly mechanical protection products that are commercially available against damage caused by weevils. Results will allow for concrete recommendations to be made to avoid significant losses in new birch plantations. This information is critical to ensure that the expected gains of using improved birch are realized, including subsequent profits and the potential for birch to aid in the sustainability and multi-functionality of Swedish forests.

Silver birch Insect damage Weevil Clear-cut age