A canker is the result of repeated frustrated attempts on, the part of the callus to heal up a wound.
The seriousness of the damage done is illustrated by the ravages of the larch disease, apple canker, &c.
Fruit suffers much from the larvae of the Geometridae, the socalled "looper-larvae" or " canker-worms."
In the Attic deme Melita he was invoked as 6W /caws (" Helper in ills "), at Olympia as KaXAlvcrcos (" Nobly-victorious "), in the rustic worship of the Oetaeans as eopvoiricov (K6pv01rEs, " locusts "), by the Erythraeans of Ionia as tlrotcrdvos (" Canker-worm-slayer ").
The larch suffers from several diseases caused by fungi; the most important is the larch-canker caused by the parasitism of Peziza Willkommii.
The effects of badly-executed pruning, or rather hacking, are most noticeable in the case of forest trees, the mutilation of which often results in rotting, canker and other diseases.
A thoroughly healthy, well-balanced, harmonious nature, accepting life as it came, with all its joys and sorrows, and living it beautifully and hopefully, without canker and without uncharity.