The invention relates to the technical field of rice induced
disease resistance, and discloses a chemical
elicitor for inducing rice
sheath blight resistance and application, the chemical
elicitor is prepared by the following steps: adding p-fluorophenoxyacetic acid into
acetone, and uniformly stirring to obtain
mother liquor; adding the compound, a tert-butylbenzene compound and
terpinene into a mother solution, and uniformly stirring to obtain a composite mother solution; taking the composite
mother liquor as a core material, and taking a
ferric chloride aqueous solution and
tannic acid as wall materials to obtain the chemical
elicitor compound. The tert-butylbenzene compound and the
terpinene assist the chemical elicitor on fluorophenoxyacetic acid, and through multiple inhibition on
rhizoctonia solani, the resistance of rice to
sheath blight disease can be induced, the
disease area of the
sheath blight disease is reduced, and infection of the
rhizoctonia solani is inhibited; the water
hyacinth seed extract contains a large number of phenolic hydroxyl structures and can be combined with the tert-butylbenzene compound and the p-fluorophenoxyacetic acid through
hydrogen bonds, so that the stability is improved.