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Zhou, Mandhlenkosi
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Agriculture, Biological Sciences & Forestry

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Evaluation of Indigenous Fruit Juices and Trap Colours for Managing Fruit Flies (Diptera: Tephritidae) in Butternut (Cucurbita moschata) Sibanda, Mzobanzi; Musabayana, Zivanayi; Mathema, Ndabanye; Tembo, Lenon; Zanamwe, Pesanai; Mafirakureva, Tariro; Zhou, Mandhlenkosi; Moyo, Dean; Manjeru, Pepukai
Journal of Tropical Plant Protection Vol. 7 No. 2 (2026)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2026.007.2.1

Abstract

Fruit fly is serious pest that reduce yield and fruit quality in Cucurbita moschata. Cucurbita moschata is an important food and cash crop. Development of eco-friendly strategies to reduce the effects of fruit fly damage is therefore important in ensuring global food security. The present study was carried out to evaluate the potential of combinations of trap colour and indigenous fruit juices, i.e., Sclerocarya birrea and Strychnos spinosa, to attract fruit flies to the traps. A field experiment was laid out as a 4 x 3 factorial design with three replicates of each of the 12 treatments arranged in a Randomized Complete Block Design. The first factor was the type of attractant and it consisted of four levels, i.e., Strychnos spinosa juice, Sclerocarya birrea juice, sugar and water. The second factor was trap colour and it consisted of three levels, viz., red, yellow and green. The number of fruit flies trapped was counted and classified into different fruit fly genera. The results showed that the number of fruit flies attracted by a combination of sugar and the three trap colours was statistically (P < 0.05) similar to number of fruit flies attracted by a combination of Strychnos spinosa juice and the three trap colours and a combination of Sclerocarya birrea juice and the three trap colours. Bactrocera spp has the highest number of flies trapped, with a grand mean of 39.9, followed by Ceratitis spp (15.5) and Drosophila melanogaster had the least number of flies trapped (9.94). It was concluded that Strychnos spinosa and Sclerocarya birrea juices can be used as alternative attractants to sugar for baiting and trapping fruit flies with traps painted yellow, green and red.
Assessment of Farmers’ Knowledge, Practices, and Effectiveness of Control Strategies Against Storage Pests and Soil Borne Diseases in Cereal and Legume Crops in Lupane District, Zimbabwe Zhou, Mandhlenkosi; Mlambo, Alec; Tibugari, Handsen
Journal of Tropical Plant Protection Vol. 7 No. 2 (2026)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtpp.2026.007.2.3

Abstract

Smallholder farmers in semi-arid sub-Saharan Africa depend largely on both formal and informal seed systems, although the contribution of various seed types towards land cultivation remains unclear. The objectives of the study were to evaluate farmer knowledge of storage pests and soil-borne diseases, seed sourcing systems, and perceived efficiency of traditional seed storage practices for cereals and legumes in Lupane District, Zimbabwe. A questionnaire survey was administered to 400 farmers across ten wards between October 2022, and March 2023 and October 2023. A multistage sampling method was adopted in ward and farmer selection. Findings indicated that despite the fact that 97.8% of respondents used seed through government input schemes and 98.8% used commercial seed at least once, the quantities were generally low for planting. As a result, most land cultivated was planted with farm-saved seed. In relation to area planted, farm-saved seed that is traditionally treated comprised 45% of land cultivated, untreated farm-saved seed comprised 42%, while commercial seed comprised only 13%. Economic factors were the key factor in the choice of farm-saved seed. Storage crop pests (maize, rice, and cowpea weevils), were well known, while there was limited knowledge on soil-borne fungal diseases. Holes and frass were identified as damage symptoms in all crops. Combretum imberbe ashes was identified as the most used and preferred traditional seed preservation treatment. Farm-saved seeds were predominant used despite the persistent use of commercial seeds, and there is need for scientific studies of common botanicals used in seed production in semi-arid farming communities.
Co-Authors Mafirakureva, Tariro Manjeru, Pepukai Mathema, Ndabanye Mlambo, Alec Moyo, Dean Musabayana, Zivanayi Sibanda, Mzobanzi Tembo, Lenon Tibugari, Handsen Zanamwe, Pesanai