Evaluation de l’infestation des Loranthaceae sur les ligneux des agroécosystèmes de la région du Sud-Comoé (Côte d’Ivoire)

Abstract

RESUME Evaluation of the infestation of wood Loranthaceae on agroecosystems of the Sud-Comoé region (Côte d'Ivoire) ABSTRACTIn Côte d'Ivoire, parasites vascular plants of the family Loranthaceae are a major threat to many species and wild fruit given the extent of the damage. The present study was undertaken with the aim to contributing to better understanding Loranthaceae and parasitism on the woody flora of agroecosystems (cocoa, coffee) in the Sud-Comoé (Côte d'Ivoire). In orchards, Loranthaceae species found and host trees have been identified. On each taxon, the number of clumps was counted. In agroecosystems, 115 host species distributed in 77 genera and 34 families are parasitized by 7 species of Loranthaceae. Tapinanthus bangwensis is the most abundant ubiquitous species of all Loranthaceae found. The average rate of infestation of inventoried hosts taxa is 37.94 p.c. (per cent) and the average intensity of infestation is 8.15 tufts/tree. Parasitism of Loranthaceae is a threat to D.E. A. AMON et al. / Int. J. Biol. Chem. Sci. 9(4): 1822-1834, 2015 1823 be considered. We therefore consider it essential to develop targeted control of research programs for fruit trees, source of income for farmers.

Local Uses and Parasitism of Loranthaceae in Sudano-Sahelian Zone of Cameroon: Case of Diamare Plain in Far North Region

“…Calotropis procera was found among the least sensitive host species in Benin (Houenon et al, 2012) and Mangifera indica was said to be resistant to parasitic plants (Dibong et al, 2008). These results corroborate those of Dibong et al (2008) which presented Mangifera indica as a resistant species to the parasitism of Loranthaceae and differ from those of Feguem (2011) and Amon et al (2015). These authors showed that Mangifera indica was parasitized in the North-West region of Cameroon and South-Comoé region of Ivory-Coast respectively.…”

Biodiversité végétale et valeur d’usage en zone soudanienne de la Côte d’Ivoire

“…Elle se présente comme l'association de forêts claires et de savanes (Amon et al, 2015) se développant sur des sols ferralitiques moyennement désaturés et moins développés. Ces sols présentent des phénomènes d'induration faibles et irréguliers.…”

Sketch

“…The study on trees and shrubs host to epiphytoid parasites (Loranthaceae) in cocoa tree based agrosystems in Daloa department have allowed to inventory 73 host species of Loranthaceae belonging to 55 genera to 22 families. This taxonomic diversity of 55 genera and 73 species is significantly lower than that of the 77 genera and 116 species obtained in agrosystems in the South-east of Côte d'Ivoire (Amon, 2014) [3] and that of 81 genera and 99 species registered by Soro (2010) [22] in Oumé, Gagnoa and Soubré, in the Central-West and in the South-West of the country. On the other hand, it is clearly higher than the 34 genera and 41 species recorded in the agrosystems of the riparian areas of the University of Lorougnon Guédé, in the Central-West of Côte d'Ivoire (Sako, 2019) [18 ].…”