This invention relates to the field of
grain storage technology, and in particular to a natural
plant essential oil insecticide composition, its preparation method, and its application. The natural
plant essential oil insecticide composition comprises a main
active ingredient and co-active ingredients. The main
active ingredient includes
cinnamaldehyde,
allyl isothiocyanate, and cuminaldehyde. The co-active ingredients include 1,8-cineole, β-
phellandrene, γ-
terpinene, p-cymene,
eugenol, α-
pinene,
linalool, and
limonene. By
volume percentage, the insecticide composition contains:
cinnamaldehyde 15-40%,
allyl isothiocyanate 20-40%, and cuminaldehyde 0.5-16.5%. The insecticide composition provided by this invention is made from natural
plant essential oils, is stable, safe,
environmentally friendly, does not pollute grains, and has an aromatic
odor. It has a strong insecticidal effect on pests such as rice weevils in grains and has good application prospects in the field of
grain storage.