Dear Foresters: The shrub and sometimes tree Prunus serotina (Black Cherry, American Birdcherry) can be problematic with the renewal of Dutch pine forests. After a clearcut shrubs and seedlings are growing out and compete with the young plantation. In older forests endemic understory (ferns, native shrubs) are often strangled by vigourous black cherries. Mechanical control by cutting the shrubs enlarges the problem by rapid sprouting of the stubs. Chemical control is often undesired. Biological control has been studied and will be common practice soon (I hope). Sometimes I receive a letter from Germany, Belgium, France about this biocontrol agent made from mycelium of the fungus Chondrostereum purpureum. My Question is: As in how far is Prunus serotina a problem in the surrounding countries of The Netherlands? I'm very inquisitive to know :) =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Sincerely Yours, dr Meindert D. de Jong | seeking a E-mail: Vlinders@RCL.WAU.NL | telejob Voice: (+31) 8370 21937 FAX: (+31) 8370 23110 Photo:de Jong e.a.'90. Risk Analysis for Biological Control. A Dutch case study in biocontrol.. Plant Disease 74: 189-194. Letter to the Editor 1992 Risk Assessment for the Application of Biological Control of a Forest Weed by Common Fungus. Risk Analysis 12: 465-466.
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