Parker, EJ


Causes of damage to some Zambian wild fruit trees, by E.J. Parker, Zambia Journal of Science and Technology, Vol.3, no.4, October 1978, Pg. 74-83.


Causes of damage to some indigenous Zambian trees bearing edible fruits or nuts are recorded, with particular reference to mupundu Parinari curatellifolia and masuku Uapaca kirkiana. Diseases and pests are often specific within host genera, although some common types of damage result either from organisms with a broad host range, or from the variety of organisms within a similar ecological niche.

Abiotic damage occurs from fire, frost, and through mechanical means. Leaf infecting fungi and wood decay fungi may reduce host vigour. Predominant problems are insect initiated. For Parinari spp. insect or mite induced galls are frequent defects, and weevil larvae infest the seed and may induce premature fruit fall. For Uapaca spp. 10-20% defoliation by phytophagous pests is common. Both fungi and insects can cause defects and damage to the fruit at all stages of development, thus reducing the measures for trees in indigenous woodlands; only in orchards or nurseries can protection be economically envisaged.

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