Back to Search
Start Over
Mechanistic basis for synergism of 2,4-D amine and metribuzin in Avena sterilis
- Source :
- Journal of Pesticide Science. 45:216-222
- Publication Year :
- 2020
- Publisher :
- Pesticide Science Society of Japan, 2020.
-
Abstract
- The combination of herbicides with different modes of action has been adopted not only to improve weed control but also to increase the environmental sustainability of plant-protection products. In this study, we showed a synergistic effect of the auxin herbicide 2,4-D amine with the PSII-inhibiting herbicide metribuzin to control the global grass weed wild oat (Avena sterilis) population and investigated the underlying mechanisms. Pretreatment with 2,4-D amine did not change the foliar absorption of metribuzin but did increase metribuzin translocation to the roots and new leaves, although enhancement of the metribuzin metabolism was also observed. Considering that the expression level of the target site psbA gene is significantly higher in leaves than in roots, increased metribuzin translocation to new leaves is likely the major cause of the observed synergism, even though enhanced metribuzin metabolism may offset the metribuzin efficacy. This is the first report on the synergistic mechanism between 2,4-D amine and metribuzin in weed control.
- Subjects :
- 0106 biological sciences
chemistry.chemical_classification
education.field_of_study
biology
Chemistry
Health, Toxicology and Mutagenesis
Population
food and beverages
Chromosomal translocation
Metabolism
010501 environmental sciences
Weed control
biology.organism_classification
01 natural sciences
010602 entomology
chemistry.chemical_compound
Horticulture
Avena sterilis
Metribuzin
Auxin
Insect Science
Amine gas treating
education
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 13490923 and 1348589X
- Volume :
- 45
- Database :
- OpenAIRE
- Journal :
- Journal of Pesticide Science
- Accession number :
- edsair.doi...........d208dc46483085739d1035562f8ed7a8