Cherry gummosis on an ornamental species

Gummosis is the formation of patches of a

gummy Gummies, gummi candies, gummy candies, or jelly sweets are a broad category of gelatin-based chewable sweets. Gummi bears, Sour Patch Kids, and Jelly Babies are widely popular and are a well-known part of the sweets industry. Gummies are availab ...

substance on the surface of certain plants, particularly fruit trees. This occurs when

sap Sap is a fluid transported in xylem cells (vessel elements or tracheids) or phloem sieve tube elements of a plant. These cells transport water and nutrients throughout the plant. Sap is distinct from latex, resin, or cell sap; it is a separa ...

oozes from wounds or

canker A plant canker is a small area of dead tissue, which grows slowly, often over years. Some cankers are of only minor consequence, but others are ultimately lethal and therefore can have major economic implications for agriculture and horticultur ...

s as a reaction to outside

stimuli A stimulus is something that causes a physiological response. It may refer to: * Stimulation ** Stimulus (physiology), something external that influences an activity ** Stimulus (psychology), a concept in behaviorism and perception * Stimulus (eco ...

such as adverse weather conditions, infections, insect problems, or mechanical damage. It is understood as a plant physiological disease. File:Klejotok na třešni 2.JPG,

Plant sap Sap is a fluid transported in xylem cells (vessel elements or tracheids) or phloem sieve tube elements of a plant. These cells transport water and nutrients throughout the plant. Sap is distinct from latex, resin, or cell sap; it is a sepa ...

rises from the bark of a cherry tree File:Klejotok na třešni 1.JPG File:Klejotok 13023.JPG File:Klejotok 13028.JPG File:Klejotok na třešni 3.JPG

References

External links

Video and commentary on gummosis on a cherry tree. Natural gums, * Physiological plant disorders {{plant-stub