Universidade Federal de Minas Gerais - UFMG, Instituto de Ciências Agrárias - ICA, Insetário G.W.G. Moraes, Montes Claros, MG, Brasil.
Braz J Biol. 2023 Nov 27;83:e272987. doi: 10.1590/1519-6984.272987. eCollection 2023.
Terminalia argentea native tree to Brazil and used in landscaping, wood and coal production, and civil construction, is adapted to poor and dry soils and cultivated in severely disturbed ecosystems. This plant has insecticidal activity, but arthropods can cause damage to its saplings. This study evaluates the herbivorous insects and of their natural enemies on 48 T. argentea saplings which were divided according to the damage they cause or reduce it on these saplings using the percentage of the Importance Index-Production Unknown (% I.I.-P.U.). The Lamprosoma sp., Epitragus sp., Tropidacris collaris, Cerambycidae, Cratosomus sp., Psiloptera sp., Parasyphraea sp., Trigona spinipes, and Aphis spiraecola showed the highest % I.I.-P.U. on leaves of T. argentea. The Aphirape uncifera, Mantis religiosa, Uspachus sp., Podisus sp., and Araneidae, with the highest % I.I.-P.U. on leaves of T. argentea saplings are possible solutions to reduce damage by these pests. These natural enemies can reduce herbivorous insects on T. argentea saplings. However, their populations should be increased, especially spiders. Nevertheless, the Brachymyrmex sp. associated to A. spiraecola, in future T. argentea commercial plantations, can increase populations of sap-sucking insect and, consequently, their damage.
银叶树是原产于巴西的一种乔木，用于景观美化、木材和煤炭生产以及民用建筑，它适应贫瘠和干燥的土壤，并在严重受干扰的生态系统中种植。这种植物具有杀虫活性，但节肢动物会对其幼苗造成损害。本研究评估了 48 株银叶树幼苗上的食草昆虫及其天敌，根据它们对这些幼苗造成的或减少的损害，使用未确定的重要性指数-产量（% I.I.-P.U.）对其进行划分。灯蛾科、Epitragus 属、Tropidacris collaris、天牛科、Cratosomus 属、Psiloptera 属、Parasyphraea 属、Trigona spinipes 和 Aphis spiraecola 对银叶树叶片的 % I.I.-P.U. 最高。 Aphirape uncifera、Mantis religiosa、Uspachus 属、Podisus 属和 Araneidae 对银叶树幼苗叶片的 % I.I.-P.U. 最高，是减少这些害虫损害的可能解决方案。这些天敌可以减少银叶树幼苗上的食草昆虫。然而，应增加其种群数量，尤其是蜘蛛。然而，与 A. spiraecola 相关的 Brachymyrmex sp.，在未来的银叶树商业种植园中，可能会增加吮吸汁液昆虫的种群数量，从而增加其损害。
