Editing Pesticide (section)

===Cultivation practices===
Cultivation practices include [[polyculture]] (growing multiple types of plants), [[crop rotation]], planting crops in areas where the pests that damage them do not live, timing planting according to when pests will be least problematic, and use of [[trap crop]]s that attract pests away from the real crop.<ref name="sustaining"/> Trap crops have successfully controlled pests in some commercial agricultural systems while reducing pesticide usage.<ref>{{cite journal |vauthors=Shelton AM, Badenes-Perez FR |date=Dec 6, 2005 |title=Concepts and applications of trap cropping in pest management |journal=Annual Review of Entomology |volume=51 |issue=1 |pages=285–308 |doi=10.1146/annurev.ento.51.110104.150959 |pmid=16332213}}</ref> In other systems, trap crops can fail to reduce pest densities at a commercial scale, even when the trap crop works in controlled experiments.<ref>{{Cite journal |last1=Holden |first1=Matthew H. |last2=Ellner |first2=Stephen P. |last3=Lee |first3=Doo-Hyung |last4=Nyrop |first4=Jan P. |last5=Sanderson |first5=John P. |date=2012-06-01 |title=Designing an effective trap cropping strategy: the effects of attraction, retention and plant spatial distribution |journal=Journal of Applied Ecology |volume=49 |issue=3 |pages=715–722 |doi=10.1111/j.1365-2664.2012.02137.x |bibcode=2012JApEc..49..715H |doi-access=free}}</ref>