Evaluation of grafting on Coffea canephora var. Robusta and chemical treatment for control of Pratylenchus sp in C. arabica cropping system
#Pratylenchus# sp., among other pests, has a significant impact on the economy of coffee plantations throughout Central America. A field experimentation was undertaken in the southwest of Guatemala to assess damage due to nematode and to evaluate 2 different methods of control: grafting on #C. canephora# var. Robusta, and chemical treatments (terbufos: 1 to 2g/plant twice a year). This experiment include 4 treatments (1- no grafting without chemical ; 2-no grafting plus chemical ; 3- grafting without chemical; 4- gafting plus chemical) and was carried out for five years, including the first 3 commercial harvests. Observations of nematode numbers, total weight of harvested berries and number of dead plants demonstrated the high degree of pathogenicity of #Pratylenchus# sp. on #C. arabica # and the very good efficiency of grafting as a method of control (production coffee beries multiplied by 3,6 on average). In contrast, chemical treatments resulted in a nonsignificant increase in production (x 1,14)
| Main Authors: | , , , , |
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| Format: | article biblioteca |
| Language: | eng |
| Subjects: | F02 - Multiplication végétative des plantes, H10 - Ravageurs des plantes, Coffea arabica, Coffea canephora, greffage, Pratylenchus, lutte antinématode, système de culture, http://aims.fao.org/aos/agrovoc/c_1721, http://aims.fao.org/aos/agrovoc/c_1723, http://aims.fao.org/aos/agrovoc/c_3344, http://aims.fao.org/aos/agrovoc/c_6155, http://aims.fao.org/aos/agrovoc/c_5110, http://aims.fao.org/aos/agrovoc/c_1971, http://aims.fao.org/aos/agrovoc/c_1434, http://aims.fao.org/aos/agrovoc/c_3418, |
| Online Access: | http://agritrop.cirad.fr/389715/ |
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