what are weeds and types of weeds Related: NCERT Solutions - Crop Production and Management?

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what are weeds and types of weeds Related: NCERT Solutions - Crop Pro...

WEED:

A weed is simply a plant growing where it is not wanted and in competition with cultivated plants. For example, if you are intending to grow strawberries, you don’t want other plants (weeds) taking over your patch. Understand how different plants grow and spread. A handful of weeds are naturally strong competitors; those weeds that can best compete always tend to dominate.

Types of Weeds

There are generally three types of common weed plants in regards to their growing characteristics. These include:

Annual types – Annual weeds germinate and spread by seed, having an average lifespan of one year. These include both winter and summer types. Winter annuals, like chickweed, germinate in late summer/early fall, go dormant in winter and actively grow during spring. Summer annuals, such as lambsquarters, germinate in spring, grow throughout summer and are gone with the arrival of cold weather.

Biennial types – Biennial weeds complete their life cycle in two years, germinating and forming rosettes their first year and producing flowers and seeds their second year. Examples of these types include bull thistle and garlic mustard.

Perennial types – Perennial weeds return every year and normally produce long tap roots in addition to seeds. These weeds, which include dandelions, plantain, and purple loosestrife, are the most difficult to control.

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