Dr. Phyto

peppermint

Mentha × piperita

Diseases & pests on this plant

• mint rustPuccinia menthae

  Distorted pale spring shoots (systemic infection), bright orange rust pustules on the underside of leaves in summer, brown spore patches in autumn, reduced harvest.

• Verticillium wilt of alfalfaVerticillium albo-atrum

  V-shaped yellow wedges on individual leaflets, progressive yellowing + wilting from base of plant upward, vascular tissue browning visible when stem is sliced lengthwise, plants stunted + die within 2-3 years, gradual stand decline in established fields.

• powdery mildew (ornamentals)Golovinomyces sp.

  A white-to-grey powdery coating spreads over the upper leaf surface, shoots and flower buds; under it the tissue yellows, and young leaves may pucker, curl or be stunted; severe attacks brown and shrivel the leaves. Unlike downy mildew the growth is on the UPPER surface and rubs off; worst in warm days with cool, humid nights and crowded, shaded plants.

• two-spotted spider miteTetranychus urticae

  Yellow stippling on upper leaf surface, fine webbing.

• grey mould (Botrytis)Botrytis cinerea

  Fuzzy grey mould on leaves and stems.