
Fact Sheet: White Rot – Database of Apple Diseases
White Rot is a fungal disease of apples and pears caused by Botryosphaeria dothidea, also called Botryosphaeria rot or bot rot. The symptoms can be easily confused with Black rot (Diplodia seriata) and Bitter rot (Colletotrichum gloeosporioides).
The white rot fungus, Botryosphaeria dothidea, often referred to as “Bot rot” or Botryosphaeria rot, can be a distinct canker on twigs, limbs, and trunks. The fungus produces two types of fruit rot, but leaf infections do not occur. Drought stress and winter injury have been associated with an increase in infection and canker expansion.
Apple Disease - White Rot - Penn State Extension
2023年3月25日 · The white rot fungus, Botryosphaeria dothidea, often referred to as "Bot rot" or Botryosphaeria rot, is most important on apple trees, but it also attacks crabapple, pear, grape, and chestnut. External rot is first visible as small, slightly sunken, brown spots that may be surrounded by a red halo.
White Rot / Onion and Garlic / Agriculture: Pest Management …
The most effective controls for white rot are avoidance and sanitation. Once a field is infested, fungicide applications are necessary to produce onion or garlic crops. Because onion and garlic exudates stimulate the germination of white rot sclerotia, the use of such products to germinate and kill sclerotia are currently being investigated.
White rot - Integrated Pest Management - College of Agriculture …
White rot cankers begin as small, sunken, reddish brown lesions in spring and enlarge throughout the season, often girdling the infected limb. Pimple-like fruiting bodies develop on canker surfaces 4–8 weeks after infection (B).
White Rot and Botryosphaeria Canker of Apple | Ohioline
Botryosphaeria canker and fruit rot (white rot) is caused by the fungus Botryosphaeria dothidea. The fungus overwinters as black pycnidia and perithecia in a wart-like stroma on living and dead cankered limbs and in rotted fruits. The fungus is also commonly found on …
White Rot of Apple – Apples - Extension
2019年8月22日 · White rot is often referred to as Botryosphaeria rot or Bot rot and is caused by Botryosphaeria dothidea, a serious fungal pathogen of apple wood and fruit. The fungus causing white rot is ubiquitous in nature, occurring on a wide variety of woody plants, including birch, chestnut, peach, and blueberry.
What is white rot, and how do I identify and manage the
White rot is often referred to as Botryosphaeria rot or Bot rot and is caused by Botryosphaeria dothidea, a serious fungal pathogen of apple fruit and wood. The fungus causing white rot is ubiquitous in nature, occurring on a wide variety of woody …
White Rot | Pests & Diseases - Plantix
White rot disease is caused by the soilborne fungus Sclerotium cepivorum. Plants most commonly are infected through the soil, where the dormant pathogen can survive for periods of up to 20 years. The severity of the disease is strongly associated with the amount of of fungus in the soil.
What is White Rot | U.S. Pest Protection
White rot fungi belong to a specialized group of wood-decaying organisms that attack both living trees and wooden structures in homes. Unlike other wood-destroying fungi, white rot has a unique approach to breaking down wood. What makes white rot fungi distinct is its ability to decompose both lignin and cellulose—the main structural ...