The utility model discloses a
pesticide spraying device for
crop diseases and
insect pests, which relates to the technical field of
pesticide spraying for crops and comprises a
pesticide spraying vehicle, a supporting
assembly is arranged on the pesticide spraying vehicle, a reciprocating lifting
assembly is arranged on the supporting
assembly, a pressing plate is arranged on the reciprocating lifting assembly, and the reciprocating lifting assembly can drive the pressing plate to reciprocate and lift up and down. A plurality of expansion tables are installed at the bottom of the pressing plate at equal intervals, a plurality of atomization nozzles are installed at the bottom of each expansion table in the length direction at equal intervals, and a liquid supply assembly is further arranged on the pesticide spraying vehicle. The motor drives the rotating shaft to rotate, in the lifting process of the expansion table, crops can be pushed aside towards the two sides along the inclined face of the expansion table, so that the atomization
nozzle directly sprays pesticide liquid into the crops, meanwhile, when the expansion table does not make contact with the crops, the atomization
nozzle sprays pesticide liquid to the surfaces of the crops, and the pesticide liquid is sprayed to the surfaces of the crops. Therefore, the atomization
nozzle sprays pesticide to the surfaces and the interiors of crops, and the
disease and
pest control effect is improved.