What does it mean to plant a yellow flag on the land?

Why are there little yellow flags everywhere in the fields?

These "little yellow flags" are made of yellow plastic plates. Yellow board trapping and killing technology is a fast, simple, environmentally friendly and efficient pest control technology. Using the phototaxis of adults, the glue is used to lure pests to pounce on the colored board and stick the pests on the yellow board to achieve the purpose of controlling pests, which can control and control all kinds of migratory pests in peanut fields to the maximum extent and improve the quality of Shayang peanuts.

These "little yellow flags" are made of yellow plastic plates. Yellow board trapping and killing technology is a fast, simple, environmentally friendly and efficient pest control technology. Using the phototaxis of adults, the glue is used to lure pests to pounce on the colored board and stick the pests on the yellow board to achieve the purpose of controlling pests, which can control and control all kinds of migratory pests in peanut fields to the maximum extent and improve the quality of Shayang peanuts.