under the control of the individual farmers, who can
manage their land to increase the abundance of beneficial
organism groups. For example, creating habitats such as
edge zones, hedgerows and permanent grass strips, and
preserving natural small refuge biotopes among the cultivated
fields, can favour natural enemies (Chiverton 1989).
In this case, organic farmers are at an advantage because
they do not use pesticides. In other cases, the measures
could be just as efficient irrespective of the farming
system, for example decreasing tillage and increasing
organic matter input to the soil to favour earthworms.
under the control of the individual farmers, who canmanage their land to increase the abundance of beneficialorganism groups. For example, creating habitats such asedge zones, hedgerows and permanent grass strips, andpreserving natural small refuge biotopes among the cultivatedfields, can favour natural enemies (Chiverton 1989).In this case, organic farmers are at an advantage becausethey do not use pesticides. In other cases, the measurescould be just as efficient irrespective of the farmingsystem, for example decreasing tillage and increasingorganic matter input to the soil to favour earthworms.
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