US 12,108,756 B2Granted

Photodynamic method of inhibiting growth of a microbial plant pathogen

AssigneeTDA Research, Inc.

InventorsChristopher Brian France, William Bell

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Abstract

We describe methods and materials for inhibiting the growth of a microbial pathogen of a plant. The method comprises the steps of applying to the plant a combination of a dye-bearing compound which is a reactive oxygen species photosensitizer; and a copper compound, which increases the microbial lethality of the dye-bearing compound towards the microbial pathogen; and exposing the plant to light to activate the combination of the dye-bearing compound and the copper compound and inhibiting growth of a microbial pathogen of a plant. The combination of the dye-bearing compound and the copper compound may result in a synergistic ability to reduce the growth of a plant pathogen.

Claims34

Dependent claims

A method for synergistically inhibiting growth of a microbial pathogen of a plant, comprising:

applying to the plant a combination comprising:
a dye-bearing compound which is a reactive oxygen species photosensitizer, wherein the dye-bearing compound is provided at a concentration between about 1 and 100 ppm on a mass basis;
and
a copper compound to increase the microbial lethality of the dye-bearing compound towards the microbial pathogen, wherein the copper compound is provided at a concentration between about 3.98 and 39.8 ppm of copper on a mass basis;
and
exposing the plant to light to activate the combination of the dye-bearing compound and the copper compound and inhibiting growth of a microbial pathogen of a plant;
wherein the copper compound and the dye-bearing compound are provided in amounts that are synergistically effective to inhibit growth of the microbial pathogen.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/278,657Filed 24 Sep 2019
Published: US 2022/0110319 A114 Apr 2022
Granted: 8 Oct 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

A01N 25/00
Biocides, pest repellants or attractants, or plant growth regulators, characterised by their
A01N 59/20
Heavy metals; Compounds thereof: copper
A01N
Preservation of bodies of humans or animals or plants or parts thereof

Family

US 2022/0110319 A1Pre-grant publication · published 14 Apr 2022
US 12,108,756 B2This patent

From the US filing history. Foreign family members aren’t listed.

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