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Biological Control of Weevils (Strophosoma melanogrammum and S. capitatum) in Greenery Plantations in Denmark

Figure 5.4: Density (no. per m²) in 2001 and 2002 of adult S. melanogrammum (left column) and S. capitatum (right column) on the experimental field site treated with either M. anisopliae BIPESCO 5 (Treated) or 0.05% Triton x-100 (control) in spring 2001 (April 25 and May 9) after soil application against ovipositing females. The density was measured by weekly counting of number of weevils caught in 30 emergence traps per treatment.

Figure 5.4: Density (no. per m²) in 2001 and 2002 of adult S. melanogrammum (left column) and S. capitatum (right column) on the experimental field site treated with either M. anisopliae BIPESCO 5 (Treated) or 0.05% Triton x-100 (control) in spring 2001 (April 25 and May 9) after soil application against ovipositing females. The density was measured by weekly counting of number of weevils caught in 30 emergence traps per treatment.

 

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Version 1.0 November 2004, © Danish Environmental Protection Agency