Many land-grant university extension offices suggest that strawberries should not be planted more than five years on the same site, due to the danger of black root rot (though many other illnesses go by the same name), which is controlled in major commercial production by annual methyl bromide fumigation.
許多贈地大學推廣辦公室建議不要在同一地點種植草莓超過五年，因為黑根腐病的危險（雖然許多其他疾病都是同名的），這在主要的商業生產中受到控制 每年進行溴甲烷熏蒸。