What causes re­plant disease?

Amateur Gardening - - Gardening Week -

■ Re­plant disease oc­curs when a plant is re­placed by the same type, which then strug­gles to be­come es­tab­lished or put on good growth.

■ It mainly af­fects roses, ap­ples, ed­i­ble and flow­er­ing cher­ries, peaches, pears, plums and quince.

■ It is a lit­tle-un­der­stood prob­lem, but one way of solv­ing it is to dig up the ail­ing plant and move it to some­where where its va­ri­ety has not been grown be­fore.

■ Other so­lu­tions in­clude lin­ing the sides of the plant­ing hole with card­board that will de­com­pose by the time the plant is es­tab­lished.

■ Us­ing my­c­or­rhizal fungi (such as Root­grow), well-rot­ted ma­nure or high-ni­tro­gen fer­tiliser when you plant can also strengthen roots.

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