Prevention and control of spring maize seedling pests and diseases

At present, pests and diseases in corn fields occur as a whole. If they do not pay attention to prevention and control, let them continue to develop, which will cause disasters. It is hoped that the masses of peasants will do a good job in the monitoring of corn pests and diseases, so that early detection and early prevention can be achieved, seize the favorable opportunity, take effective measures to prevent corn pests and diseases in the early stage, and strive to eliminate pests and diseases in the bud and ensure the safe growth of corn. .

Technical measures for prevention and control:

(1) Chemical control. For cornfields, winged crickets, thrips, beard mites, and red-bearing blind mites can be used with 20% thiocarbamate 1500 times, 35% endosulfan 1000 times, 48% lesben 2000 times alternate spray Prevention and treatment.

For corn mash, 3% carbofuran granules or 5% aldicarb granules can be used to control 2-3 capsules per heart.

For corn dwarf mosaic virus disease, 2% Ningnanmycin water agent 150 times, 20% hydrochloric acid morpholine arc copper wettable powder (Virus A) 400 times liquid spray can be used for prevention and treatment.

For corn field weeds, 20% gram of traceable water 300 times solution can be used, and the nozzles should be equipped with a “shield” to control the directional spray between the corn rows, taking care to avoid spraying the liquid onto the stems and leaves of the corn plants. The above agent is sprayed with 40-50 kg of liquid.

(2) Agricultural measures. Strengthen field management, rational topdressing, irrigation, timely cultivating and weeding; carefully inspect and timely remove the sporadic disease strains of the virus field in the corn field, bring out the concentrated destruction in the field; thoroughly remove the weeds in the corn field and surrounding, and cut off the virus source and mediator Host.