The invention relates to a
trunk-boring
pest control device which comprises a water pistol, a liquid delivery hose, a spraying
nozzle and a telescopic rod; the water pistol is communicated with the spraying
nozzle through the liquid delivery hose with a length of 4 m, the spraying
nozzle extends to a position 4 m away from the water pistol, and then the spraying nozzle is installed at the upper part of the stainless steel telescopic rod and can rotate; the water pistol is installed at the bottom part of the telescopic rod; when the
trunk insect pest control device is used, firstly, mixed
pesticide is loaded in the liquid
receiver of the water pistol, the telescopic rod is lengthened to the position in which a worm
burrow is within the reach of the spraying nozzle, then the needle-shaped spraying nozzle is pricked into the worm
burrow, a trigger is cocked, and the
pesticide liquid is sprayed out from the spraying nozzle. 1-2ml of
pesticide liquid can be sprayed out each time, and each hole is sprayed two to three times, so that the pesticide liquid can be sufficiently applied to the hiding-place for
insect pests to achieve the purposes of killing the
insect pests and protecting the trees.