Method for inhibiting growth of gibberella saubinetii and reducing toxins of wheat scab infected grains and application of method

Abstract

The invention discloses a method for inhibiting the growth of gibberella saubinetii and reducing the toxins of wheat scab infected grains. The method comprises the following steps: inoculating gibberella saubinetii in the flowering stage of wheat, after completion of inoculation, immediately and respectively spraying a selenium preparation solution and clear water to inoculated wheat ears so as toobtain a treatment group and a control group, respectively counting the rate of diseased spikelets in the treatment group and the control group, carrying out harvesting, then measuring the toxin content of wheat grains, and comparing the disease efficacy of the treatment group and the control group so as to evaluate the prevention and treatment effects on wheat scab. The method provided by the invention can effectively inhibit the growth and toxin production of the gibberella saubinetii, reduces the susceptibility rate of the wheat scab and the toxin content of the wheat grains, can improve the nutritional value of the wheat through proper application and can promote the health of human, animals and plants.

Description

technical field [0001] The invention relates to a method and application for inhibiting the growth of gibberella and reducing toxins in wheat scab grains, and belongs to the technical field of plant disease and insect pest control. Background technique [0002] Fusarium scab is one of the most important diseases on wheat. The prevalence of the disease not only causes a severe reduction in wheat yield, but also accumulates toxins in the grains, which can cause human and animal poisoning. Although there are many types of pesticides currently used to prevent and control wheat head blight, the active ingredients are mainly concentrated in carbendazim, prochloraz, triadimefon, tebuconazole, benzaconazole EC, cyclostrobin, etc. Several types of agents are usually sprayed with single or compound agents. Among them, carbendazim single agent or carbendazim compound agent is used more. [0003] Carbendazim can effectively prevent the infection of pathogenic bacteria, but once the in...

AI Technical Summary

Problems solved by technology

[0003] Carbendazim can effectively prevent the infection of pathogenic bacteria, but once the infection relationship is established, it cannot prevent the expansion of pathogenic bacteria

Long-term use of carbendazim will cause the gibberella fungus to develop resistance to carbendazim, affecting the control effect, and carbendazim will cause pesticide residues and cause environmental pollution

Single-agent control effects such as prochloraz and benzopropiconazole are poor and the cost is high

[0004] Inorganic selenium solution can delay the spread of head blight and reduce the infection rate of grains, but the effect on the toxin content of grains has not been verified

In addition, the inorganic selenium solution is highly toxic, and excessive application or residue will cause toxicity to humans and plants.

[0005] At present, there is a lack of a wheat scab control method that inhibits the growth of Gibberella, reduces the disease ear rate and grain toxin content, and is beneficial to the health of humans and animals.