Investigations on Cannoncadoo Dieback in coffee
Studies revealed that "Cannoncadoo dieback" is caused by the coffee root-lesion nematode, Pratylenchus coffeae (Zimm) Filipjev and Stekhoven. A survey undertaken on 26 coffee estates revealed the association of 45 species of parasitic nematodes with arabica coffee and the constant association of Pratylenchus coffeae with the affected plants. Studies on pathogenicity and cross inoculation were conducted on Cannoncadoo estate and at Central Coffee Research Institute in order to establish the exact role of Pratylenchus coffeae, Dieback affected plants on Cannoncadoo estate when subjected to a nematicide treatment recovered completely. Population dynamics studies revealed that the nematode was persistant in soil all round the year and reached the maximum level during July, August and September. A new term "Spreading decline" which explains the nature of the disorder, is proposed. Control measures suggested consist of exposing the soil after uprooting the affected plants to the sun throughout summer and planting with robusta or robusta-arabica grafted plants which are tolerant to Pratylenchus coffeae
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| Format: | biblioteca |
| Published: |
Jul
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| Subjects: | COFFEA ARABICA, NEMATODOS DE LAS PLANTAS, PRATYLENCHUS COFFEAE, DINAMICA DE LA POBLACION, INFESTACION, CONTROL DE NEMATODOS, CONTROL QUIMICO, NEMATOCIDAS, INDIA, |
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| Summary: | Studies revealed that "Cannoncadoo dieback" is caused by the coffee root-lesion nematode, Pratylenchus coffeae (Zimm) Filipjev and Stekhoven. A survey undertaken on 26 coffee estates revealed the association of 45 species of parasitic nematodes with arabica coffee and the constant association of Pratylenchus coffeae with the affected plants. Studies on pathogenicity and cross inoculation were conducted on Cannoncadoo estate and at Central Coffee Research Institute in order to establish the exact role of Pratylenchus coffeae, Dieback affected plants on Cannoncadoo estate when subjected to a nematicide treatment recovered completely. Population dynamics studies revealed that the nematode was persistant in soil all round the year and reached the maximum level during July, August and September. A new term "Spreading decline" which explains the nature of the disorder, is proposed. Control measures suggested consist of exposing the soil after uprooting the affected plants to the sun throughout summer and planting with robusta or robusta-arabica grafted plants which are tolerant to Pratylenchus coffeae |
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