Introduction. Senegal produces up to 150,000 t of fruit, of which 60,000 t are mangoes. Fruit production is important for the Niayes region, where 60% of total production is of mangoes, with citrus production coming next at 24%. Mango losses have become more substantial since the arrival of Bactr...
Ndiaye, O.
,
Vayssières, Jean-François
,
Rey, J.
,
Ndiaye, S.
,
Diedhiou, P.M.
,
Ba, C.T.
,
Diatta, P.
,
[Seasonality and range of fruit fly (Diptera Tephritidae) host plants in orchards in Niayes and the Thies Plateau (Senegal)]
,
Seasonality and range of fruit fly (Diptera Tephritidae) host plants in orchards in Niayes and the Thies Plateau (Senegal)
Discusses the choice of sampling design for low-level aerial surveys, with particular reference to stratification and the choice between systematic and random sampling.
Echandi Z, R
,
Arregocés, Oscar
,
Robayo Vanoy, G
,
González A, F.
,
[Guía de estudio para ser usada como complemento de la unidad audiotutorial sobre el mismo tema]
,
[Técnicas de muestreo]
,
Técnicas de muestreo
Moreira, FMS
,
Huising, Jeroen
,
Bignell, D.E.
,
[A handbook of tropical soil biology: sampling and characterization of below-ground biodiversity]
,
A handbook of tropical soil biology: sampling and characterization of below-ground biodiversity
Describes methods of assessing spotting or sighting bias in low-level aerial observations, with emphasis on an approach based on a static model sampling strip; includes data on the relative advantages of counting through perspex or open windows, and the efficiency of pilot/observers in comparison...
Watson, R.M.
,
Tippet, C.I.
,
[The static model sampling strip for investigating observer bias in aerial surveys]
,
The static model sampling strip for investigating observer bias in aerial surveys
Desde la introducción de Thrips palmi Karny a Colombia, éste se convirtió en una de las principales plagas de la habichuela en el Valle del Cauca y es hoy objeto de excesivo uso de insecticidas para su control. Una de las formas de racionalizar el uso de insecticidas es hacer las aplicaciones en ...
Bueno Mondragon, J.M.
,
Cardona Mejía, César
,
[Umbral de acción para Thrips palmi (Thysanoptera: Thripidae) en habichuela en el Valle del Cauca, Colombia = Action threshold for Thrips palmi (Thysanoptera: Thripidae) on snap beans in the Cauca Valley, Colombia]
,
Umbral de acción para Thrips palmi (Thysanoptera: Thripidae) en habichuela en el Valle del Cauca, Colombia = Action threshold for Thrips palmi (Thysanoptera: Thripidae) on snap beans in the Cauca Valley, Colombia
Thrips palmi Karny es una plaga de habichuela y fríjol en Colombia, detectada en 1997 en el Valle del Cauca, que ocasiona grandes pérdidas económicas en estos cultivos. Con el Tin de conocer la dispersión del insecto en la planta, cómo se desarrolla la población a través del ciclo del cultivo, el...
Osorio Cordoba, J
,
Cardona Mejía, César
,
[Fenología, fluctuación de poblaciones y métodos de muestreo para Thrips palmi (Thysanoptera: Thripidae) en habichuela y frijol = Phenology, population dynamics and sampling methods for Thrips palmi (Thysanoptera: Thripidae) on snap beans and beans]
,
Fenología, fluctuación de poblaciones y métodos de muestreo para Thrips palmi (Thysanoptera: Thripidae) en habichuela y frijol = Phenology, population dynamics and sampling methods for Thrips palmi (Thysanoptera: Thripidae) on snap beans and beans
Natural entomopathogenic nematodes (EPNs) are considered as potential biological control agents against soil-borne insect pests. This study was conducted to determine the impact of land use on the distribution, occurrence and diversity of entomopathogenic nematode community. Isolation of EPNs was...
Kawaka, JF
,
Kimenju, J.W.
,
Ayodo, G
,
Mwaniki, SW
,
Muoma, JO
,
Okoth, Sheila A.
,
Orinda, G.O.
,
[Impact of land use on the distribution and diversity of entomopathogenic nematodes in embu and taita districts, kenya]
,
Impact of land use on the distribution and diversity of entomopathogenic nematodes in embu and taita districts, kenya
United Nations Environment Programme
,
[Environmental Baseline Study for the Proposed Relocationing of the UNSOA Logistics Base Mombasa, Kenya]
,
Environmental Baseline Study for the Proposed Relocationing of the UNSOA Logistics Base Mombasa, Kenya