Shot hole encourages almond drop, doesn't harm kernels
Severe spring outbreaks of shot hole disease are often accompanied by leaf fall and fruit drop. Although fruit are shed in response to defoliation, the direct effect of shot hole infection on developing fruit was not known. When fruit at various stages of development were...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of California Agriculture and Natural Resources
1999-01-01
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| Series: | California Agriculture |
| Online Access: | http://calag.ucanr.edu/archive/?article=ca.v053n01p16 |
| Summary: | Severe spring outbreaks of shot hole disease are often accompanied by leaf fall and
fruit drop. Although fruit are shed in response to defoliation, the direct effect
of shot hole infection on developing fruit was not known. When fruit at various stages
of development were inoculated with high concentrations of the shot hole pathogen,
very young and midsized fruit fell, whereas older fruit were retained. Typical shot
hole lesions developed on midsized fruit, and full-sized fruit became resistant to
infection when embryo development began. Infection did not affect kernel weight, but
caused a slight, economically unimportant reduction in kernel length. |
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| ISSN: | 0008-0845 2160-8091 |