Spatial and probability distribution of Aphis gossypii infestation in West Africa. Application to non-random field sampling

Gozé Eric, Deguine Jean-Philippe. 2000. Spatial and probability distribution of Aphis gossypii infestation in West Africa. Application to non-random field sampling. In : New frontiers in cotton research : Proceedings of the world cotton research conference - 2, Athens, Greece, September 6-12, 1998. Gillham Fred M. (ed.). Washington : ICAC, 885-886. World Cotton Research Conference. 2, Athènes, Grèce, 6 Septembre 1998/12 Septembre 1998.

Résumé : A non-random sampling plan is proposed for monitoring insect infestation in cotton to facilitate spraying, based on action thresholds, to control Aphis gossypii on cotton plants in Central Africa. Non random sampling is preferred to random sampling because it is easier to implement. It is validated by the spatial distribution of the insect. This was studied with variograms and the probability distribution calculated by numerical integration.

Mots-clés Agrovoc : Gossypium, insecte nuisible, Aphis gossypii, infestation, échantillonnage, seuil économique, niveau de préjudice économique

Mots-clés géographiques Agrovoc : Afrique occidentale

Classification Agris : H10 - Ravageurs des plantes

Auteurs et affiliations

• Gozé Eric, CIRAD-CA-DIR (FRA) ORCID: 0000-0001-9121-7835
• Deguine Jean-Philippe, CIRAD-CA-COTON (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/477470/)

Métriques

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