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结果 1981-1990 的 2,098
Phytosanitary problems of citrus in St. Lucia
1987
Auguste, A.D. | Henry, E. | Mathurin, G. (Ministry of Agriculture (St. Lucia). Crop Protection Unit)
Damage to citrus is mainly due to citrus weevils (Diaprepes spp.), scale insects and aphids. Other minor pests are listed. Exocortis and Tristeza are absent but diseases of minor importance are greasy spot (Mycosphaerella citri) and melanose (Erisiphe sp.)
显示更多 [+] 显示较少 [-]Moko disease threatens the West Indies
1987
Frossard, P. (Centre de Cooperation International en Recherche Agronomique pour le Developpement, Montpellier (France). Institut de Recherches sur les Fruits et Agrumes)
Important features of the disease Pseudomonas solanacearum or Moko, affecting banana and plantain are reviewed. The history and distribution, host range, symptoms, causal organisms and dissemination, pathogen cycle, disease resistance and control based on sanitation methods are briefly described
显示更多 [+] 显示较少 [-]Sigatoka control in Guadeloupe
1987
Bureau, E. (Centre de Cooperation International en Recherche Agronomique pour le Developpement, Belle-Eau, Guadeloupe. Institut de Recherches sur les Fruits et Agrumes. Station de Neufchateau)
The strategy is preventative based on a climatic forecasting system which receives data from 14 agroclimatic stations, complemented by biological assessments. The method used is termed 'state of evolution', an expression of the speed of disease development which varies with inoculum potential and climatic conditions. Benzimidazole and sterol-inhibiting fungicides are applied in rotation
显示更多 [+] 显示较少 [-]Improving Windward Islands banana production through phytosanitation
1987
Williams, D.B. | Laville, B. | Fagan, H.J. (Windward Islands Banana Growers' Association, Castries (St. Lucia))
Phytosanitary practices are recommended to reduce the incidence in the Windward Islands of banana pests and diseases: leaf spot (Mycosphaerella musicola), crown rot (Fusarium roseum), virus diseases (bunchy top), moko disease (Pseudomonas solanacearum), banana borer (Cosmopolites sordidus), rust thrips (Chaetonophothrips signipennis), flower thrips (Frankliniella parvula), Lachnopus beetle and nematodes
显示更多 [+] 显示较少 [-]A biological control programme for Diaprepes abbreviatus: a citrus pest in the French West Indies
1987
Etienne-Manleon, M.M. | Mademba-Sy, F. (Centre de Cooperation International en Recherche Agronomique pour le Developpement, Fort-de-France, Martinique. Institut de Recherches sur les Fruits et Agrumes)
A summary of the research programme for control of Diaprepes abbreviatus which is primarily responsible for citrus dieback disease. Studies include: population dynamics of the pest, presence of oophagi parasites of which 3 have been discovered in Guadeloupe (Tetrastichus sp. 1 and 2, and Ceratogramma) and one in Martinique (Tetrastichus sp. 3), nematode parasites and fungal parasites. Alternative rootstocks are being tested as well as the effects of soil physical conditions
显示更多 [+] 显示较少 [-]The status of research on Moko disease in Guyana
1987
Muller, G.J. | Jones, F.A. (Caribbean Agricultural Research and Development Institute, Georgetown (Guyana))
The disease is endemic in Guyana and both the B and SFR strains of Pseudomonas solanacearum race 2 are present. Four resistant varieties have been introduced viz. Pilipita, Enano, Congo and Mari Congo, the first of which was best adapted to the conditions but has fruit of limited marketability
显示更多 [+] 显示较少 [-]Citrus sanitary conditions in Martinique: a possibility for a regional bank of germplasm
1987
Mademba-Sy, F. (Institut de Recherches sur les Fruits et Agrumes, Fort-de-France, Martinique)
Martinique is in the favourable position of being free of tristeza and its vector Toxoptera citricidus, mal secco, greening, citrus canker or blight. The Fruit Research Station with equipment for virus indexing and strict sanitary inspection at the customs makes it an ideal location for a regional germplasm bank and for multiplication of vegetative material
显示更多 [+] 显示较少 [-]Phytosanitation in St. Lucia
1987
St Hill, T. (St. Lucia Banana Growers' Association, Castries (St. Lucia))
The major banana pests and diseases influenced by poor field management are highlighted. Control of leaf spot (Sigatoka) benefits from a plant density from 1550 to 2100 mats/ha, weed control and detrashing and adequate surface drainage. Nematodes, borers (cosmopolites sordidus), thrips and mosaic virus are reduced by weed control, trash removal and sleeving
显示更多 [+] 显示较少 [-]Citrus and banana production in Trinidad and Tobago
1987
Persad, C. (Ministry of Agriculture, Lands and Food Production, Centeno (Trinidad and Tobago). Central Experiment Station)
A citrus rehabilitation programme is underway to restore abandoned estates through weed control, epiphyte and parasitic phanerogam removal, pruning, fertilization and improved drainage. Phytosanitary methods of control of Moko disease (Pseudomonas solanacearum race 2) and Yellow Sigatoka (Mycosphaerella musicola) of bananas are listed. Virus indexing of citrus cultivars has been initiated and research into tissue culture of banana plants started
显示更多 [+] 显示较少 [-]Current strategies for Moko control in Grenada: technical and logistical constraints
1987
Hunt, P. (Grenada Banana Cooperative Society, St. George's (Grenada). Moko Control Programme)
Moko control in Grenada by eradication of affected and adjacent (buffer zone) mats is discussed. The major constraints to the programme are poor reporting of disease occurrence, inadequate size of buffer zone, need for frequent re-visits to affected farms, uncertainty over the recommended length of the fallow period, and inadequate supplies of Moko-free planting material
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