Biodiversity and parasitism of Loranthaceae on citrus cultivated in the Mongo department

Autor: Biyon, Jacques Bruno Ngotta, Tchoue, Yves Donald Wafo, Nnanga, Jeanne Flore, Arriane Barbara Iyodi, Seraphine Ebenye Mokake, Taffouo Victor Désiré
Rok vydání: 2022
Předmět:
Zdroj: GSC Advanced Research and Reviews. 11:037-044
ISSN: 2582-4597
DOI: 10.30574/gscarr.2022.11.2.0122
Popis: Citrus farming is currently a main sector in Africa in general, particularly in the sub-Saharan region. Citrus farming in Cameroon has been expanding since the cocoa crisis and thanks to its financial and economic benefits. The research aim was to evaluate the parasitism of Loranthaceae on citrus trees in the Mongo department. Direct observations were made in the canopy of 796 citrus trees in seven arrondissements, and included species identification, and the Loranthaceae species growing on their foliage. Alive and dead tufts were numbered to estimate parasitism density and mortality rate. Five species of Loranthaceae identified on six citrus species. Tapinanthus predominated with three species,T. bangwensis T. preussiiandTapinanthussp.Phragmanthera capitatawas the most frequent (75.37%), andT. preussiiwas scattered (2.33%). The highest mean parasitic density was obtained inT. bangwensishas the higher parasitic density (5.76±5.17 tufts/tree), followed byHelixanthera mannii(5.42±4.13 tufts/tree). The highest rate of parasitism was obtained onC. maxima(89.77%), and the highest natural mortality rate of Loranthaceae was onC. medica(12.5%). Loranthaceae have already greatly expanded in Citrus, it recommended to set up a monitoring system to protect the yields.
Databáze: OpenAIRE