343 results about "Dicamba" patented technology

The invention provides cropping systems for managing weeds in crop environments. The cropping systems comprise, in one embodiment, transgenic plants that display tolerance to an auxin-like herbicide such as dicamba. Method for minimizing the development of herbicide resistant weeds are also provided.

The invention provides a modified variant of dicamba monooxygenase (DMO). The invention relates to the unexpected finding that cells expressing this DMO exhibit high levels of tolerance to the herbicide dicamba. Compositions comprising DMO-encoding nucleic acids and methods of use are provided.

The invention provides methods for weed control with dicamba and related herbicides. It was found that pre-emergent applications of dicamba at or near planting could be made without significant crop damage or yield loss. The techniques can be combined with the herbicide glyphosate to improve the degree of weed control and permit control of herbicide tolerant weeds.

The present invention provides methods and compositions for improving plant health. In particular, application of dicamba or another substrate of DMO, or metabolites thereof including DCSA, to a plant confers tolerance to, or defense against, abiotic or biotic stresses such as oxidative stress including herbicide application, and plant disease, and enhances crop yield. Such application may be in combination with the application of another herbicide such as glyphosate.

The invention provides isolated and at least partially-purified dicamba-degrading enzymes, isolated DNA molecules coding for dicamba-degrading enzymes, DNA constructs coding for dicamba-degrading enzymes, transgenic host cells comprising DNA coding for dicamba-degrading enzymes, and transgenic plants and plant parts comprising one or more cells comprising DNA coding for dicamba-degrading enzymes. Expression of the dicamba-degrading enzymes results in the production of dicamba-degrading organisms, including dicamba-tolerant plants. The invention further provides a method of controlling weeds in a field containing the transgenic dicamba-tolerant plants of the invention and a method of decontaminating a material containing dicamba comprising applying an effective amount of a transgenic microorganism or dicamba-degrading enzyme(s) of the invention to the material. Finally, the invention provides a method of selecting transformed plants and plant cells based on dicamba tolerance and a method of selecting or screening transformed host cells, intact organisms and parts of organisms based on the fluorescence of 3,6-dichlorosalicylic acid produced as a result of dicamba degradation.

The invention discloses a method for measuring residues of three phenoxy carboxylic acid pesticides in tobacco and tobacco products. The method is characterized by comprising the following steps of: digesting a sample by using acetonitrile; adding anhydrous magnesium sulfate, sodium chloride, sodium citrate and sodium hydrogen citrate to oscillate for layering; and subsequently, performing dispersive solid-phase extraction, and directly measuring the pesticide residues of 2,4-drop, 2,4,5-mucus and dicamba in the tobacco and tobacco products through liquid chromatogram-tandem mass spectrometry. According to the method, the defects of the sample treatment method in the prior art are overcome, and the sample pretreatment method and the instrument detection conditions are optimized aiming at the tobacco products; and compared with the prior art, the method has the beneficial effects that the sample pretreatment process is simple and rapid, derivatization is not required, and the method has the advantages that operation is accurate, sensitivity is high and repeatability is high.

Penoxsulam, 2-(2,2-difluoroethoxy)-N-(5,8-dimethoxy[1,2,4]-triazolo[1,5-c]pyrimidin-2-yl)-6-(trifluoromethyl)benzenesulfonamide, provides synergistic herbicidal control with dicamba, the mixture of 2,4-D, triclopyr and clopyralid, or the mixture of 2,4-D and mecoprop-P.