Grayworm (Spodopteralitura) is polyphagic or can live on various types of vegetables. The alternative to control that pests on caisim is to use biological control by utilizing B. thuringiensis. The purpose of this research was to study the impact of sunlight intensity on the growth of caisim plants. And to find out whether the toxicity of B. thuringiensis-based bioinsecticide that has a high ef…