Dr. Phyto

sour cherry

Prunus cerasus

Diseases & pests on this plant

• cherry leaf spotBlumeriella jaapii

  Small (1-3mm) purple-brown spots on upper leaf surfaces, spots fall out leaving shothole appearance, yellowing + premature drop of heavily-spotted leaves from June onward, defoliated trees by August in epidemic years, occasional fruit lesions and stem infections.

• European brown rot / blossom blightMonilinia laxa

  Sudden brown collapse of flower clusters during/just after bloom, dead flower spurs hanging on twigs producing greyish spore masses, twig cankers oozing amber gum below dead blossoms, branch dieback in heavy infections, summer fruit rot identical to M. fructicola.

• European cherry fruit flyRhagoletis cerasi

  Small (4-6mm) black-bodied flies with banded wings on ripening cherries, single tiny oviposition puncture on fruit surface, internal cavity filled with cream-colored maggot, fruit becomes soft + brown around larva and falls early, larva pupates in soil through winter.