You might start talking accurately to begin with. There is no such thing as a genetically modified insecticide.
Neonicotinoids are in the seeds of genetically modified vegetables, corn and soy being the top two, then neonicotinoids as an insecticide are sprayed on those crops and they are sold as a package with a contract to farmers..it is supposedly designed to make crops resistant to certain pests of the insect variety. Since you are a high tech and I am not, perhaps you could look into it on your own?