Why do genetically modified soybeans use glyphosate as an insecticide?

Glyphosate is not an insecticide but a herbicide. At present, most transgenic soybeans have been transformed into genes with high glyphosate resistance. This genetically modified soybean will not be killed by glyphosate, but glyphosate can kill other weeds.

When planting this transgenic soybean, glyphosate can be sprayed on the ploughed soil first, and then the transgenic soybean can be directly sown. In addition, in the growth process of transgenic soybean, glyphosate can be directly sprayed to completely kill other weeds without affecting the growth of transgenic soybean at all. Intensive planting is realized by aerial spraying and mechanical sowing. It is very easy for one person to manage the cultivation of 500 mu of genetically modified soybeans. Generally speaking, glyphosate naturally stops 50 days before the harvest of genetically modified soybeans (it is difficult for weeds to grow again after the soybeans are closed).

When planting this transgenic soybean, only glyphosate will be used as a herbicide, and glyphosate is extremely toxic to human mammals. Up to now, glyphosate is the safest herbicide, and it is difficult to find glyphosate residues in transgenic soybeans because of its fast decomposition speed (it can be decomposed by half at the earliest on the day of spraying).

However, non-GM soybean planting can not achieve intensive planting, and the planting cost is much higher! It is absolutely impossible to weed by plane, only manual weeding and fine spraying of herbicides (spraying weeds with sprayers) can be used. It is impossible to weed by hand in a large area, and it is impossible to use herbicides. At this time, basically farmers will not choose safer glyphosate, but choose herbicides with much stronger toxicity and longer residue period, such as diuron and paraquat (which have been restricted). Therefore, the herbicide residue of non-GM soybeans planted in a large area is generally much more serious than that of GM soybeans. Even genetically modified soybeans,

Therefore, from the perspective of herbicides, genetically modified soybeans are much safer than non-genetically modified soybeans!