Effect of Abamectin Treatment for Avocado Thrips on Populations of Persea and Avocado Bud Mite and Their Associated Damage to Leaves and Fruit
Use of abamectin for avocado thrips, Scirtothrips perseae, also has effects on the persea mite, Oligonychus perseae, and avocado bud mite, Tegolophus myersi, in Ventura County, California. In this study individual trees were treated with the standard insecticides for thrips, sabadilla (Verat ran D) and abamectin (Agri-Mek), using a backpack sprayer, or left untreated. Sabadilla reduced S. perseae numbers on young and old leaves but failed to reduce O. perseae and T. myersi numbers. Abamectin significantly reduced numbers of all three pests. In additi on, abamectin reduced the amount of leaf dr op associated with O. perseae feeding. In a companion trial, where abamectin and sabadilla were applied by ground rig in one orchard and another orchard was left untreated, there we re no differences in T. myersi populations. When all three pests are present, the use of abamectin may be a more efficient strategy than the use of sabadilla.
| Main Authors: | , , |
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| Format: | Texto biblioteca |
| Language: | spa |
| Published: |
California Avocado Society
2000
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| Subjects: | AVOCADO, THRIPS, PERSEA, |
| Online Access: | http://www.avocadosource.com/CAS_Yearbooks/CAS_84_2000/CAS_2000_PG_095-109.pdf |
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