Blueberry diseases in new zealand

Abstract

A survey was made of diseases occurring on blueberry (Vaccinium corymbosum L.) in New Zealand. The most important disease, both of nursery stock and of mature plants growing in poorly drained sites, was Phytophthora root rot (P. cinnamomi Rands). Botrytis cinerea Pers. ex Nocca Balbis, was important as the cause of target-spot stem lesion, a flower blight, and a fruit rot. Several other fungi were isolated, mainly from stem dieback lesions, and some of these were shown to be pathogenic to wounded stems. No post-harvest fruit rot problems were encountered, but some fungi identified in the survey are important in storage rots overseas.A survey was made of diseases occurring on blueberry (Vaccinium corymbosum L.) in New Zealand. The most important disease, both of nursery stock and of mature plants growing in poorly drained sites, was Phytophthora root rot (P. cinnamomi Rands). Botrytis cinerea Pers. ex Nocca Balbis, was important as the cause of target-spot stem lesion, a flower blight, and a fruit rot. Several other fungi were isolated, mainly from stem dieback lesions, and some of these were shown to be pathogenic to wounded stems. No post-harvest fruit rot problems were encountered, but some fungi identified in the survey are important in storage rots overseas.A survey was made of diseases occurring on blueberry (Vaccinium corymbosum L.) in New Zealand. The most important disease, both of nursery stock and of mature plants growing in poorly drained sites, was Phytophthora root rot (P. cinnamomi Rands). Botrytis cinerea Pers. ex Nocca Balbis, was important as the cause of target-spot stem lesion, a flower blight, and a fruit rot. Several other fungi were isolated, mainly from stem dieback lesions, and some of these were shown to be pathogenic to wounded stems. No post-harvest fruit rot problems were encountered, but some fungi identified in the survey are important in storage rots overseas.A survey was made of diseases occurring on blueberry (Vaccinium corymbosum L.) in New Zealand. The most important disease, both of nursery stock and of mature plants growing in poorly drained sites, was Phytophthora root rot (P. cinnamomi Rands). Botrytis cinerea Pers. ex Nocca and Balbis, was important as the cause of target-spot stem lesion, a flower blight, and a fruit rot. Several other fungi were isolated, mainly from stem dieback lesions, and some of these were shown to be pathogenic to wounded stems. No post-harvest fruit rot problems were encountered, but some fungi identified in the survey are important in storage rots overseas. © 1982 Taylor and Fracis Group, LLC.