Diversity, abundance and incidence of fruit pest insects on three Solanum varieties (Solanaceae) in two agro-ecological zones of Southern Cameroon

1 Laboratory of Zoology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde I, P. O. Box 812 Yaounde, Cameroon. 2 Laboratory of Zoology, Department of Biological Sciences, Higher Teacher‟s Training College, University of Yaounde I, P. O. Box 47 Yaounde, Cameroon. 3 Department of Biology, Higher Teacher‟s Training College, University of Bamenda, P. O. Box 39 Bamenda, Cameroon. 4 Laboratory of Parasitology and Ecology, Department of Animal Biology and Physiology, Faculty of Science, University of Yaounde I, P. O. Box 812 Yaounde, Cameroon.