Critical period of weed control

• The weeds needs to be periodically removed in any land which is used for agriculture purpose.
• This period has been defined as an interval in the life cycle of the crop when a must be kept weed free to prevent yield loss.
• Horticulture crops are very sensitive to weed competition and need to kept weed free from planting emergence or bud break until the end of their critical weed free period.
• If the crop is kept weed free for the critical period no yield reduction.
• Again, weeds emerging after the critical weed free period will not affect yield but control efforts after this time may make harvest more efficient or reduce weed problems in subsequent years in perennial crops

                         Critical Weed free Period for Horticultural Crops