Ekspresowa Analiza Zagrożenia Agrofagiem: Apiosporina morbosa (Schwein.) Arx (1954)

Apiosporina morbosa is a pathogen that causes black knot disease of plants of the genus Prunus sp. The main host of the agrophage is the house plum (P. domestica), but the common cherry and species less commonly grown in the PRA area, such as the common peach, common apricot and japanese plum, are also infected. The disease manifests itself by the appearance of initially green and later black thickenings and growths (black knots) on tree branches. Infected trees dwarf and become twisted. If the nodule forms a ring around the branches, it leads to their death. Probability of penetration: low Probability of establishment: medium (P. domestica, the main host of the agrophage, which is grown on about 17,000 hectares in Poland, may be particularly at risk. The reservoir of the pathogen may be also Prunus sp. species growing in the wild). Probability of spread: low (control of plant material and widespread use of fungicides significantly reduces the spread of the agrophage). The primary phytosanitary measure is the control of plants of the genus Prunus brought to Poland from areas where the pathogen is common. If the occurrence of the agrophage in Poland is noted, it will be necessary to develop and incorporate procedures for the prevention and control of A. morbosa.PL; pl; PDF; kwarantanna@iorpib.poznan.p