ABSTRACT
278Global climate changes such as increasing CO2 levels, temperature increases, drought, etc., have been shown to adversely affect agricultural products. Weeds can be seen as a major problem because they seem to fight at the expense of the crop for resources such as light, water, and nutrients. Weed species are commonly favored in crops that are more closely associated with them. The association between weeds and crops is due to their similar growth habits. The basic strategy should be considered as the core of the organic weed control strategy: crop stand, crop rotation, crop cover, variety selection, clean seeds, soil health, soil structure, spring tillage, delayed planting, post-emergence tillage, hand weeding, mulches, and organic herbicides. This chapter focuses on: (i) classification of weed species; and (ii) weed management strategies under climate change.
