Insect Feeding Assays with Spodoptera exigua on Arabidopsis thaliana

Plant-insect interaction is an important field for studying plant immunity. The beet armyworm, , is one of the best-known agricultural pest insects and is usually used to study plant interactions with chewing insects. Here, we describe a protocol for insect feeding assays with lavae using model host plant , which is simple and easy to conduct, and can be used to evaluate the effect of host genes on insect growth and thus to study plant resistance to chewing insects.