Which type of annual weed germinates in spring and dies in fall?

The type of annual weed that germinates in spring and dies in the fall is classified as a summer annual. Summer annuals typically complete their life cycle within one growing season; they germinate in the spring, grow and mature through the summer months, and then die as temperatures drop in the fall. This seasonal pattern allows them to take advantage of warm weather and ample sunlight, which are crucial for their growth and reproduction.

In contrast, winter annuals germinate in the fall, establish themselves over the winter, and then flower and die the following spring. Biennials, on the other hand, have a two-year life cycle, typically germinating in the first year and flowering in the second year before dying. Perennials can live for multiple years, emerging and dying back seasonally without completing their life cycle within a single year. Understanding the differences in weed life cycles is essential for effective weed management and application practices.