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Cinco años de manejo integrado de la tristeza (Pyhtophthora cinnamomi Rands) del aguacate y su efecto sobre los daños causados por el barrenador de ramas (Copturus aguacatae Kiss.)

by Cabrera Bautista, S; Salazar García, S.
Publisher: 1991ISSN: 0185-3309.Other Title: Five years of integrated management of avocado root rot (Pyhtophthora cinnamomi Rands) and its effect on damage caused by the branch borer (Copturus aguacatae Kiss.).Subject(s): PERSEA AMERICANA | PHYTOPHTHORA CINNAMOMI | COPTURUS AGUACATAE | ENFERMEDADES DE LAS PLANTAS | PLAGAS DE PLANTAS | DAÑOS | GESTION DE LUCHA INTEGRADA | EXPERIMENTACION | INVESTIGACION | CONTROL DE PLAGAS | PERSEA AMERICANA | PHYTOPHTHORA CINNAMOMI | PLANT DISEASES | PESTS OF PLANTS | DAMAGE | INTEGRATED PEST MANAGEMENT | EXPERIMENTATION | RESEARCH | PEST CONTROL | PERSEA AMERICANA | PHYTOPHTHORA CINNAMOMI | MALADIE DES PLANTES | RAVAGEUR DES PLANTES | DEGAT | GESTION INTEGREE DES RAVAGEURS | EXPERIMENTATION | RECHERCHE | LUTTE ANTIRAVAGEUROnline Resources: Es In: Revista Mexicana de Fitopatología (México) v. 9(1) p. 38-43Summary: An integrated management experiment was established in 1982 in Atlixco, Puebla for the control of "Tristeza" (avocado root rot) caused by Phytophthora cinnamomi. Bovine manure (E), alfalfa straw (A) and metalaxyl alone or combined were applied at each tree basin. Control tress (T) without E, A or M but improved in their management (irrigated by flooding in individual basins instead of general flooding, and chemically fertilized), and double control trees (DT) without E, A or M and with traditional management (irrigated by general flodding, chemical fertilizers very rarely applied, without control of foliar pests). The objetive of this work was to determine the incidence and injury caused by the branch weevill (Copturus aguacatae) in 13-years old 'Fuerte' avocado trees, treated from 1982 to 1987 against P. cinnamomi as previously described. The injury caused by the branch weevill were estimated by means of visual evaluation and by counting thewhite powdery exudations in the affected branches. Trees with EA were the most injuried by the weevill, and the least injuried were the ones treated with EM. Thirtiary branches located on the external top half of the treet canopy were more injuried. There was a direct relation between damage caused by tristeza and the injuries caused by the branch weevill. Branch weevill damage diminished fruit yield.
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An integrated management experiment was established in 1982 in Atlixco, Puebla for the control of "Tristeza" (avocado root rot) caused by Phytophthora cinnamomi. Bovine manure (E), alfalfa straw (A) and metalaxyl alone or combined were applied at each tree basin. Control tress (T) without E, A or M but improved in their management (irrigated by flooding in individual basins instead of general flooding, and chemically fertilized), and double control trees (DT) without E, A or M and with traditional management (irrigated by general flodding, chemical fertilizers very rarely applied, without control of foliar pests). The objetive of this work was to determine the incidence and injury caused by the branch weevill (Copturus aguacatae) in 13-years old 'Fuerte' avocado trees, treated from 1982 to 1987 against P. cinnamomi as previously described. The injury caused by the branch weevill were estimated by means of visual evaluation and by counting thewhite powdery exudations in the affected branches. Trees with EA were the most injuried by the weevill, and the least injuried were the ones treated with EM. Thirtiary branches located on the external top half of the treet canopy were more injuried. There was a direct relation between damage caused by tristeza and the injuries caused by the branch weevill. Branch weevill damage diminished fruit yield.

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