Timing of halo spotting by flower thrips on table grapes
Flower thrips oviposit in newly developing grape berries and produce a halo spot. The halo spot consists of a small dark scar surrounded by whitish tissue. If too numerous, these halo spots either reduce the grade of table grapes or result in their being culled. Fortunately only a few varieties such...
| Published in: | California Agriculture |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
University of California Agriculture and Natural Resources
1973-10-01
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| Online Access: | https://californiaagriculture.org/article/112144-timing-of-halo-spotting-by-flower-thrips-on-table-grapes |
| Summary: | Flower thrips oviposit in newly developing grape berries and produce a halo spot. The halo spot consists of a small dark scar surrounded by whitish tissue. If too numerous, these halo spots either reduce the grade of table grapes or result in their being culled. Fortunately only a few varieties such as Almeria, Calmeria and Italia are ordinarily affected. The greatest damage potential occurs with Italia since the skin may split at the site of a halo spot during ripening and lead to bunch rot. |
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| ISSN: | 0008-0845 2160-8091 |