Farmers’ Knowledge of Potato Viruses and Management Strategies in the Western Highlands of Cameroon

Abstract

Potato (Solanum tuberosum L.), important staple food and a source of income to small-scale farmers, is mostly cultivated in Cameroon in the Western Highlands. Production constraints are exerted on this crop by many pathogens including viruses responsible for considerable yield losses. This study aimed at assessing the perception of farmers on the virus diseases that can affect potatoes, and to identify the control methods adopted against them. A semi-structured survey was carried out among 230 farmers in 24 villages of the Western Highlands zone of Cameroon. Out of these farmers, 80.87% had never heard of potato viruses. Those having pre-knowledge about potato viruses were 19.13%. Among the latter, 16.52% had heard of potato viruses and transmission mode during capacity building workshops while 2.61% didn't know about the means of transmission. Insect control is essentially chemical (100%). However, few farmers use biological methods such as intercropping (7.39%) and application of plant extracts (4.78%) to control insects. Twelve plant species, belonging to nine families, were mentioned for insect control. In addition to plants, farmers also use wood ash and rabbit urine for insect control. These results show the knowledge gap possessed by farmers with respect to potato viruses and their transmission mode. It is thus speculated that this spans to other crops in Cameroon settings. This finding can serve as a base and a working document for policymaking to ameliorate teaching, research and devilment related to plant viruses for better sustainable food production.

Response of Whitefly Population to Rabbit Urine Foliar Spray on Tomato (Solanum lycopersicum L.)

“…Specifically, rabbit urine has been proven by different farmers and researchers to be a biopesticide. For instance, potato farmers in Cameroon have been using rabbit urine to control whiteflies and aphids in their farms [16]. Due to its pungent smell, rabbit urine can repel insect pests [17].…”

Potato farmers' typology in Menoua Department, West Region of Cameroon

“…This is not only due to its dependence on the geographical and pedological characteristics of the soil, but also to its susceptibility to numerous pests. According to Temfack et al (2021), the main strategy for controlling potato pests in Menoua is based on the use of chemical pesticides. These pesticides, which are intended to stop the progress of pathogens and/or pests, are likely to cause a decline in soil fauna.…”