Laboratório de Entomologia e Fitopatologia, CCTA, Universidade Estadual Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego 2000, Campos dos Goytacazes, Rio de Janeiro, CEP 28013-602, Brazil.
Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil.
Sci Rep. 2021 Jan 13;11(1):1153. doi: 10.1038/s41598-020-80434-7.
The tomato pinworm Tuta absoluta (Lepidoptera: Gelechuidae) is native to South America and has now become the main tomato pest in Europe, Africa and Asia. The wide range of host plants attacked by this pest has been reported as one of the main reasons for the success of this important insect species. However, the information currently available on the biological performance of T. absoluta on Solanaceae has been obtained from a limited number of host species. The Solanaceae family is composed of thousands of species, many of which are potential hosts for T. absoluta. Our results showed that the highest oviposition rates occurred on cultivated tomato plants, potato and wild tomato. The lowest rates occurred on "gilo", "jurubeba", green pepper and pepper. The highest survival rates of the immature stages occurred on potato and the lowest on pepper, green pepper and "jurubeba". Female fertility, following infestation of the different plant species, was highest for insects that developed on tomato or potato and the lowest rates were seen on American black nightshade. The net reproductive rate and the intrinsic growth rate were highest on potato and tomato. Cluster analysis grouped tomato and potato as highly susceptible to attack, American black nightshade, juá, eggplant, gilo and wild tomato as moderately susceptible, whilst pepper, green pepper and jurubeba were categorized as resistant to T. absoluta. These results clearly demonstrate that the choice of solanaceous host plant species has a direct impact on the fitness parameters of the tomato pinworm as well as survival potential, dispersion and establishment at new sites. These results are important for the planning of integrated pest management strategies.
番茄潜叶蛾 Tuta absoluta（鳞翅目：草螟科）原产于南美洲，现已成为欧洲、非洲和亚洲的主要番茄害虫。该害虫攻击的寄主植物范围广泛，据报道这是该重要昆虫物种成功的主要原因之一。然而，目前关于 T. absoluta 在茄科植物上的生物学性能的信息是从有限数量的寄主物种中获得的。茄科植物由数千种组成，其中许多是 T. absoluta 的潜在寄主。我们的结果表明，最高的产卵率发生在栽培番茄、土豆和野生番茄上。最低的发生率发生在“gilo”、“jurubeba”、青椒和胡椒上。幼虫阶段的最高存活率发生在土豆上，最低的在胡椒、青椒和“jurubeba”上。在不同植物物种上感染后，雌性的繁殖力最高的是在番茄或土豆上发育的昆虫，而在美洲黑茄上则最低。净生殖率和内禀增长率最高的是土豆和番茄。聚类分析将番茄和土豆归为高度易受攻击的寄主，美洲黑茄、juá、茄子、gilo 和野生番茄归为中度易受攻击的寄主，而胡椒、青椒和 jurubeba 则被归类为对 T. absoluta 具有抗性。这些结果清楚地表明，茄科寄主植物的选择直接影响番茄潜叶蛾的适合度参数以及生存潜力、分散和在新地点的建立。这些结果对于综合虫害管理策略的规划很重要。
