“…There is often limited Information about the range of pathogens and pests that are a concern for plant health, and their potential spread through planting materials and other means, even when studies have addressed specific species in specific locations. For example, in Cameroon there have been targeted studies of diseases and pests of RTB crops, such as weevils, nematodes, sigatoka, and banana bunchy top disease on banana (Fogain et al, 1998; Ngatat et al, 2022; Okolle et al, 2009), cassava viruses, cassava whitefly, cassava root rot, cassava green mite, cassava root mealybug, cassava anthracnose, and cassava bacterial blight on cassava (Doungous et al, 2022; Poubom et al, 2005; Tize et al, 2021), and potato tuber moth, aphids, potato viruses, leaf miners, bacterial wilt, and late blight on potato (Deloko et al, 2021; Konje et al, 2019). In Ethiopia, studies have also been conducted on the incidence and spread of some important diseases and pests of potato and sweetpotato, such as potato bacterial wilt (Tessema & Seid, 2023), viral diseases of sweetpotato (Buko et al, 2020; Tesfaye et al, 2011) and sweetpotato weevil (Beyene, 2015).…”