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Bacterial Canker

Bacterial Canker
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This disease takes place on branches, twigs, buds, leaves, and fruit. Cankers on the twigs have darkened areas often at the base the plants buds. On limbs or trunks they are often darker than the normal bark, sunken in their centers, and they may expand out a considerable distance. Leaves and shoot growth beyond the canker may wilt and die during the growing season. Cankers can oozes gummy substance during late spring and summer. Gumming is most common on stone fruit trees, most often on their trunks, limbs, twigs, or fruit when injuries happens. The bacteria that causes the canker has a wide host plant range and can systemically enter the host plants tissue without showing any symptoms, and can form cankers on the host plant and non-host plant near the host plant forming cankers on their surfaces.