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- W1640763469 abstract "Large scale application of black cherry (Prunus serotina Ehrh.) in forestry and the typical ecological characteristics of the species resulted in its dominance of the shrublayer in homogeneous pine forests on poor sandy soils in Flanders. For reasons of nature conservation Flemish forest policy and management tries to transform these forests into more natural and structural deciduous forests. Controlling Black cherry is seen as a major condition for succes in this matter. In this study the lethal effect of mechanical, biological and chemical control methods was tested using an experimental block design. The methods consisted of girdling and felling with periodical removal of new sprouts, stump and stem treatment with mycoherbicide based on the Silverleaf disease fungus (Chondrostereum purpureum Pouzar), leaf and stump treatment with the herbicide glyphosate and stem treatments with the same herbicide using different techniques like the Hack & Squirt method, the EZject Capsule Injection System and the Silvaxe Tree Injector. The results indicated that a proper comparison can only be made after evaluation in the second autumn after treatment at the earliest. All chemical control methods, except one (Silvaxe Tree Injector System), showed a significant higher proportional mortality than mechanical and biological control methods. No statistical proof was found of a seasonal influence on mortality for the chemical methods. Application of the Hack & Squirt method and the EZject Capsule Injection System in summertime resulted in a significantly higher proportional mortality than leaf treatment and stump treatment in autumn. Lethal doses of glyphosate for different dbh-classes were calculated resulting in easy to use application procedures for stem treatment. The high lethal effect of the Hack & Squirt method confirmed their practical value. No significant seasonal influence on mortality nor any significant impact of mycoherbicide concentration was found for the biological stump treatments. Stem treatment with mycoherbicide proved inappropriate. The best season for girdling appears to be springtime while additional test indicate that wintertime could be even more appropriate. The lowest Significant proportional mortality for girdling and felling with one additional removal of sprouts was found in summertime. A high variability in proportional mortality was detected for the mechanical methods and in a lesser degree for the biological methods, sometimes approximating or even equaling the mortality rate of chemical methods. If environmental considerations have to be taken into account or if chemical control is legally forbidden (e.g. forest reserves in Flanders) biological stump treatment and girdling offer a valuable alternative. Their variable mortality can lead to unpredictable results though." @default.
- W1640763469 created "2016-06-24" @default.
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- W1640763469 date "1997-10-03" @default.
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- W1640763469 title "Comparison of mechanical, biological and chemical methods for controlling Black cherry (Prunus serotina) in Flanders (Belgium)" @default.
- W1640763469 doi "https://doi.org/10.21825/sg.v62i0.848" @default.
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