CONTROL METHODS OF <i>Prosopis juliflora</i> (Sw.) DC. (FABACEAE) IN INVADED AREAS IN THE SEMIARID REGION OF BRAZIL
DOI:
https://doi.org/10.5902/1980509819615Keywords:
biological invasion, control plants, algaroba, caatinga biome.Abstract
The objective of this study was to evaluate the efficiency of different methods to control Prosopis juliflora, invasive alien species in the semiarid region of northeastern Brazil. The experimental design was completely randomized in triple factorial scheme 2x2x8 (two populations of the species, two growth stages - regenerating and adult individuals and eight control treatments), with 10 repetitions. The treatments were: control, girdling of the stem, girdling and brushing of used lubricating oil; girdling and application of 2,4-D + picloram, clear cutting, clear cutting followed by burning of the stump; clear cutting and brushing of used lubricating oil; and clear cutting and application of 2,4-D + picloram. In total 320 individuals were monitored, among these, 160 regenerates and 160 adults individuals. The variables evaluated were: percentage of control, number of shoots, diameter and length of shoots. According to the results among the treatments, those who were more effective in controlling Prosopis juliflora were clear cutting followed by burning of the stump and application of 2,4-D + picloram in cut and girdled plants. The brushing lubricating oil on the basis of girdled plants also showed a promising strategy to control invasive.
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