IPM Scouting in Stone Fruits
Christmas trees
Field crops
Fruit
Home and yard
Nursery and landscape
Turfgrass
Vegetable
Diagnostic Services
Soil/Plant Nutrient Lab
Enviro-weather
Regional IPM Center
Pesticide safety
Organic: New Ag Network
Invasive species
Sustainable ag & food systems
| Gummosis - Botryosphaeria: B. dothidea, B. obtuse and B. rhodina | |||
| IPM scouting in stone fruits > gummosis | |||
| Gummosis, common in peach, is characterized by numerous sunken necrotic lesions ¼ to ½ inch in diameter around lenticels and by excessive gum exudation. Removing the bark reveals shallow, round to oval, brown, gummy lesions that are ½ to 1 inch in diameter. On young branches, lenticels become swollen but gumming does not occur. Symptoms initially occur on the trunk between the ground and the scaffold limbs, usually during the second or third growing season. The disease later affects the scaffold limbs and twigs. Severe infection may kill twigs, reducing fruiting wood. |
|
||
Additional information
|
|||
| Images on this page provided by Alan L. Jones. This information was developed from A Pocket Guide for IPM Scouting in Stone Fruits by David Epstein, Larry J. Gut, Alan L. Jones and Kimberly Maxson-Stein. Purchase this in a pocket-sized guide for reference in the orchard from MSU Extension (publication E-2840). |
|||
Email the web developer.