Laser weeding: opportunities and challenges for couch grass (Elymus repens (L.) Gould) control
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Laser weeding : opportunities and challenges for couch grass (Elymus repens (L.) Gould) control. / Andreasen, Christian; Vlassi, Eleni; Salehan, Najmeh.
I: Scientific Reports, Bind 14, 11173, 2024.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Laser weeding
T2 - opportunities and challenges for couch grass (Elymus repens (L.) Gould) control
AU - Andreasen, Christian
AU - Vlassi, Eleni
AU - Salehan, Najmeh
PY - 2024
Y1 - 2024
N2 - Laser weeding may contribute to less dependency on herbicides and soil tillage. Several research and commercial projects are underway to develop robots equipped with lasers to control weeds. Artificial intelligence can be used to locate and identify weed plants, and mirrors can be used to direct a laser beam towards the target to kill it with heat. Unlike chemical and mechanical weed control, laser weeding only exposes a tiny part of the field for treatment. Laser weeding leaves behind only ashes from the burned plants and does not disturb the soil. Therefore, it is an eco-friendly method to control weed seedlings. However, perennial weeds regrow from the belowground parts after the laser destroys the aerial shoots. Depletion of the belowground parts for resources might be possible if the laser continuously kills new shoots, but it may require many laser treatments. We studied how laser could be used to destroy the widespread and aggressive perennial weed Elymus repens after the rhizomes were cut into fragments. Plants were killed with even small dosages of laser energy and stopped regrowing. Generally, the highest efficacy was achieved when the plants from small rhizomes were treated at the 3-leaf stage.
AB - Laser weeding may contribute to less dependency on herbicides and soil tillage. Several research and commercial projects are underway to develop robots equipped with lasers to control weeds. Artificial intelligence can be used to locate and identify weed plants, and mirrors can be used to direct a laser beam towards the target to kill it with heat. Unlike chemical and mechanical weed control, laser weeding only exposes a tiny part of the field for treatment. Laser weeding leaves behind only ashes from the burned plants and does not disturb the soil. Therefore, it is an eco-friendly method to control weed seedlings. However, perennial weeds regrow from the belowground parts after the laser destroys the aerial shoots. Depletion of the belowground parts for resources might be possible if the laser continuously kills new shoots, but it may require many laser treatments. We studied how laser could be used to destroy the widespread and aggressive perennial weed Elymus repens after the rhizomes were cut into fragments. Plants were killed with even small dosages of laser energy and stopped regrowing. Generally, the highest efficacy was achieved when the plants from small rhizomes were treated at the 3-leaf stage.
KW - Faculty of Science
KW - Agropyrum repens
KW - Integrated weed management
KW - Perennial weeds
KW - Non-chemical weed control
KW - Site-specific weed management
KW - Thermal weed control
KW - Agropyrum repens
KW - Integrated weed management
KW - Perennial weeds
KW - Non-chemical weed control
KW - Site-specific weed management
KW - Thermal weed control
U2 - 10.1038/s41598-024-61742-8
DO - 10.1038/s41598-024-61742-8
M3 - Journal article
C2 - 38750179
VL - 14
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
M1 - 11173
ER -
ID: 391878124