خيارات البحث
النتائج 2011 - 2020 من 2,189
Innovative approaches of knowledge management in agriculture: Case of IPMS Ethiopia
2012
Mekonnen, Fanos | Sehai, Ermias | Hoekstra, Dirk
Agronomic and farmers´ assessments of multipurpose forage crops in Central Honduras النص الكامل
2004
Hoek, Rein van der | Peters, Michael | Reiber, Christoph | Hoffmann, Vivian
Modelling conservation agriculture النص الكامل
2004
Sommer, Rolf | Batchelor, WD | White, Jeffrey W. | Jones, James W. | Gijsman, A.J. | Porter, C.H.
Migration and rural welfare: The impact of potential policy reforms in Europe النص الكامل
2013
Wouterse, Fleur Stephanie
Sabah, Malaysia: Low-emission rural development (LED-R) at a glance النص الكامل
2018
Bahar, N.H.A.
Indexing for citrus virus diseases in Guyana - a brief review
1987
Muller, G.J. (Caribbean Agricultural Research and Development Institute, Georgetown (Guyana))
The tristeza virus and its vector Toxoptera citricidus are present in Guyana, as well as the susceptible rootstock sour orange. Indexing was carried out between 1964 and 1974 and interest was revived in 1982 but this has yet to be resumed
اظهر المزيد [+] اقل [-]The distribution of Moko disease in Central and South America and its control on plantains and bananas
1987
Lehmann-Danzinger, H. (Geottingen Univ., Goettingen (Germany, F.R.). Institut fur Pflanzenpathologie und Pflanzenschutz)
Second to Black Sigatoka (Mycosphaerella fijiensis), Moko (Pseudomonas solanacearum race 2) is the most threatening disease to plantains and bananas. No resistance has been found on commercial varieties. It is present throughout Central America, as well as in Trinidad, Grenada, Brazil, Surinam, Venezuela, Colombia, Ecuador and Peru and suspected in the Dominican Republic. Its detailed distribution in Mexico, Nicaragua, Costa Rica, Venezuela, Colombia, Ecuador and Peru is described. Symptoms, pathogenesis and survival of race 2, which is pathogenic and divided into SFR, the major disease agent on bluggoe, and A and B are described. Disease control by elimination of diseased plants by glyphosate injections is detailed. Good control was achieved in 70 % of infected farms with a 90 day fallow after injection
اظهر المزيد [+] اقل [-]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.)
اظهر المزيد [+] اقل [-]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
اظهر المزيد [+] اقل [-]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
اظهر المزيد [+] اقل [-]