The utility model relates to a grain bulk internal
aluminum phosphide pesticide applying device which comprises a
pipe body with the bottom used for being inserted into a grain bulk, the
pipe body comprises an outer side exploring
pipe and a
pesticide applying pipe located on the inner side of the outer side exploring pipe, a pull
rope channel is arranged between the outer side exploring pipe and the
pesticide applying pipe, and at least two pesticide applying petals are hinged to the bottom of the pesticide applying pipe. The bottom of the outer side probe tube is located on the lower sides of the pesticide applying flaps, pesticide applying space is formed between the bottom of the outer side probe tube and the pesticide applying flaps, each pesticide applying flap is connected with a pesticide applying flap reset spring, an upper side
handle is fixedly arranged at the upper end of the tube body, and a lower side
handle capable of moving up and down is arranged on the lower side of the upper side
handle. The lower side handle is connected with the corresponding pesticide applying
petal through a pull
rope, the pull
rope is arranged in the pull rope channel, and the outer side exploring tube and the pesticide applying tube are connected with a pesticide bag conveying tube used for conveying a pesticide bag into an inner hole of the pesticide applying tube. According to the utility model, the technical problem of high cost of
pesticide application equipment caused by the need of more exploring tubes in the
pesticide application process in the prior art is solved.