摘要
The pest Fall Armyworm(FAW),Spodoptera frugiperda belonging to the order Lepidoptera,is one of the most devastating insect pests resulting in severe economic losses to maize,rice,wheat,cotton and soybean in South America,Africa and Asia.It consists of two morphologically indistinguishable strains:the“corn strain”feeding mainly on maize,cotton and sorghum;the“rice strain”mostly feeding on rice and various grasses(Gouin et al.,2017).Adults of FAW have strong migration ability to fly 100 km per night.In 2018 it was detected in India and then spreads to Bangladesh,Thailand,Myanmar,and China in 2019(http://www.fao.org/fall-armyworm/en/).It is a polyphagous lepidopteran herbivore,attacks more than 350 plant species,and causes destructive damage to many economically important crops.The FAW causes up to 30%-60% yield losses.
基金
supported by the Genetically Modified Organisms Breeding Major Project of China (2019ZX08010004-004)
the National Natural Science Foundation of China (U1804231 and 31972469)
