have been in plant protection for over 60 years
With the development of plant genetic engineering, Bt insecticidal genes have been introduced into Gm crops (including rice) to develop insect resistant crops.
Many studies and evaluations of Bt rice have been conducted in both laboratory and field.
All the results consistently confirmed that Bt rice is highly effective against rice borers and leaf folders, wich are the two major classes of ricelepidopteran pests that cause severe yield loss in all rice-growing countries.