The tomato red spider mite, TRSM, Tetranychus evansi Baker & Pritchard (Acari: Tetranychidae), is an invasive tomato pest in several countries, with potential to reduce yield by up to 90% in Africa. Solanum habrochaites, access PI 134417 is a wild tomato genotype resistant to several arthropod pests, including TRSM. There is an interest in increasing the resistance of a tomato genotype (Solanum lycopersicum cv. TLCV15) widely cultivated by smallholder western African farmers to TRSM, through interspecific crossings with that wild genotype. For this purpose, after obtaining the F1 progeny and as well as F2 (SPJ-10–2017) and BC1 back-crossed (SPJ-05–2018) genotypes selected for high glandular trichome densities, we characterized their resistance level to TRSM. We quantified the types and densities of trichomes on the abaxial surface of their leaflets, and examined the subsequent bottom-up effects of these progeny plants attributes on behaviour and demographic parameters of the mite. Our results showed that the densities of glandular trichomes inherited from the resistant genotype (PI 134417) by the progenies were highly variable, with types I, IV and VI being the most prevalent. The progeny SPJ-10–2017 was classified as resistant, while the progenies F1 and SPJ-05–2018 were classified as partially resistant. These findings constitute one of the first steps towards advancing breeding programs in African countries to obtain tomato genotypes resistant to TRSM, targeting more sustainable production.

番茄红蜘蛛螨、TRSM、Tetranychus evansi Baker & Pritchard（Acari：Tetranychidae）是一些国家的入侵番茄害虫，在非洲有可能使产量减少高达 90%。Solanum habrochaites , access PI 134417 是一种对包括 TRSM 在内的多种节肢动物害虫具有抗性的野生番茄基因型。人们对提高番茄基因型（Solanum lycopersicum简历。TLCV15) 由西非小农通过与该野生基因型的种间杂交广泛种植到 TRSM。为此，在获得 F1 后代以及 F2 (SPJ-10-2017) 和 BC1 回交 (SPJ-05-2018) 为高腺毛密度选择的基因型后，我们表征了它们对 TRSM 的抗性水平。我们量化了小叶背面毛状体的类型和密度，并检查了这些后代植物属性对螨类行为和人口统计参数的后续自下而上的影响。我们的结果表明，后代从抗性基因型 (PI 134417) 遗传的腺毛密度变化很大，其中 I、IV 和 VI 型最为普遍。后代 SPJ-10-2017 被归类为抗性、而后代 F1 和 SPJ-05-2018 被归类为部分抗性。这些发现是在非洲国家推进育种计划的第一步，以获得对 TRSM 具有抗性的番茄基因型，以实现更可持续的生产。