Comparison of chestnut canker treatment procedures for hypovirus introduction

Hypovirulent inoculum of Cryphonectria parasitica historically has been introduced into cankers on American chestnut by inoculating wounds made to the canker margin. This study examined other techniques to deliver hypoviruses, including a non-invasive painting treatment and invasive treatments that...

Full description

Saved in:
Bibliographic Details
Published inPhytopathology Vol. 95; no. 6
Main Authors Bell, B C, Double, M L
Format Journal Article
LanguageEnglish
Published 01.06.2005
Subjects
Cryphonectria parasitica
Hypovirus
Online AccessGet full text

Cover

More Information
Summary:Hypovirulent inoculum of Cryphonectria parasitica historically has been introduced into cankers on American chestnut by inoculating wounds made to the canker margin. This study examined other techniques to deliver hypoviruses, including a non-invasive painting treatment and invasive treatments that employed either blade cuts or punch-wounds made to the canker. The effects of canker coverings and vegetative compatibility also were examined. Hypovirus transmission was evaluated 3 and 9 months after treatment. Hypovirus transmission was greatest in punch-wounded cankers and occurred most often in areas of the canker that formed after treatment. Canker coverings promoted the survival of treatment inoculum but did not enhance hypovirus transmission. Canker expansion was most restricted in cankers that were treated with compatible inoculum, regardless of the application method. Similar results were obtained at the two evaluation dates.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Conference-1
ObjectType-Feature-3
content type line 23
SourceType-Conference Papers & Proceedings-2
ISSN:0031-949X