The invention discloses a fruit tree pesticide. The fruit tree pesticide comprises, by mass, 20-30 parts of garlic, 35-40 parts of Syzygium aromaticum, 36 parts of pyrethrum, 28 parts of paulownia leaves, 26 parts of Cortex Magnoliae Officinalis, 23 parts of Melia azedarach, 24 parts of Wasabia japonica and 2000 parts of water. The botanical fruit tree pesticide has the advantages of nontoxic components, no residual, no pollution, greenness and environmental protection, no pollution to environment, effective prevention and control of Phyllocoptruta oleivora, chaff scales, longhorn beetles, chitinozoa and other plant pests, one-shot killing rate reaching 90.55% or above, no drug resistance, and long service life of 3-5 years.