Common weed in corn fields:

Digitaria sanguinalis, Humulus scandens, Euphorbia lathyris, Echinochloa crusgalli, Cephalanoplos segetum, Amaranthus retroflexus, Setaria viridis, Portulaca oleracea, Eleusine indica, etc.

Herbicide suitable for corn field:

According to its action mechanism and application time, it can be divided into Pre-emergence sealing herbicide and post-emergence herbicide.

Pre-emergence sealing herbicide: 

Post-emergence herbicide:

Spraying time:

Pre-emergence sealing herbicide: It is suitable for spraying after sowing to before corn bud,  for soil sealing, to control annual grass weeds and some annual broad-leaved weeds.

Post-emergence herbicide: It is suitable for spraying in the 2-4 leaf stage of corn and 3-5 leaf stage of weeds, for stem and leaf treatment,  to control annual and perennial broad-leaved weeds.

In conclusion, the selection and use of herbicides in corn fields should take into account weed species, maize growth stage and local climatic conditions. Proper use of herbicides can effectively control weeds and improve the yield and quality of corn.