From our perusal of the relevant literature (e. g. Cousens 1987, doyle 1991, norton and mumford 1993), we conclude that there are four aspects that must be considered in relation to the use of thresholds … Factors influencing weed management thresholds:

Amaranthuspalmeri require lower thresholds. Have lower weed management thresholds than more … Several competition thresholds, viz. , period threshold, quantity threshold, damage threshold, economic threshold, action threshold, ecological threshold (coble and mortensen 1992, das 2008) have been … The concept of thresholds has many applications in weed science, depending on the response being measured. The most common adjectives used to describe thresholds are damage, economic, period, … Interplant interference and competition. Vince describes the idea of different thresholds, where some crops are able to tolerate more of one weed than another.

The most common adjectives used to describe thresholds are damage, economic, period, … Interplant interference and competition. Vince describes the idea of different thresholds, where some crops are able to tolerate more of one weed than another.