The invention discloses
unguent for preventing and treating longhorn beetles and with the effects of high efficiency and systemic conduction, and belongs to the field of pesticides and preparations thereof. The
unguent is formed through blending of
triflumezopyrim,
quinalphos and an assistant, wherein the weight percentages of
triflumezopyrim and
quinalphos account for 0.1-20% and 0.1-20% of the total weight of the
unguent, and the balance is the assistant. The assistant is prepared from, in percentage by weight: 0.1-80.0% of
solvent, 0.1-80.0% of binding agent and 0.1-80.0% of filler. The invention further discloses a using method of the unguent. The unguent is applied to the position where
bark is stripped off, the unguent has the good
adhesion force and persistence, and is easy and convenient to apply, the
utilization rate of the preparation is improved, the environmental
pollution is reduced, the preparation can enter the
plant through systemic action of the
plant skin, meanwhile,the unguent has the certain contact action, can prevent the pests from
crawling back and forth on the
branch of a tree, and accordingly the harms to the
plant can be greatly reduced.