The invention provides a poison stick for controlling
tree trunk pests and a making method thereof, relating to a
forestry insect pest control technology. In the poison stick, a stick body is a wood or bamboo section, a stick tip is arranged at the front end of the stick body, and the end of the stick body is coated with a poison layer and a protective film layer from inside to outside. When in use, the poison stick is inserted into a pest tunnel, poison is in contact with sap and
moisture of pests to generate
chemical reaction and form a poisonous
phosphine gas, the
phosphine gas fills the pest tunnel, and pests in the pest tunnel die from poisoning to reach the control purpose. The invention has the following advantages of long
usable period (used in all
larva active stages within a year), long validity life, wide applicability, high insecticide efficiency, natural enemy protection, safety and convenience for use, economy, labor saving, good poison effect on
trunk pests of longicornia, buprestid, janus piri, grape clearwing moths and the like which do harm to trees including apple trees,
pear trees, peach trees, jujube trees, poplars, mulberries and the like, is simple and easy for operation without environmental
pollution and is suitable for popularizing in a large scale.