Botanical tea lesser leafhopper repellant, preparation method thereof and application

The invention discloses a botanical tea lesser leafhopper repellant, a preparation method thereof and application. The repellant comprises the following components: litsea cubeba, erilla frutescens, artemisia argyi, mentha haplocalyx, houttuynia cordata and polygonum flaccidum. The repellant has the advantages of being nontoxic, residual-free, pollution-free and non-resistance, high selectivity, wide raw material resource and high easiness in operation, can be applied to the prevention and treatment of tea lesser leafhopper in organic tea gardens and export bases, and is obvious in repellant effect. The repellant can effectively reduce the coefficient of tea lesser leafhopper, can further be effective for part of germs, obviously reduce the morbidity factors of colletotorichum gloeosporioides and tea gall, and can stimulate the growth of tea. The contained components meet the current European Union standard on pesticide residue control of exported tea, and have the advantages of high degradation velocity, no