Demolin-Leite G L
Insetário G.W.G. Moraes, Instituto de Ciências Agrárias - ICA, Universidade Federal de Minas Gerais - UFMG, Montes Claros, MG, Brasil.
Braz J Biol. 2023 Apr 17;83:e267130. doi: 10.1590/1519-6984.267130. eCollection 2023.
Acacia mangium (Willd.) (Fabales: Fabaceae) tree shows applicability in programs to recover degraded areas due to its fast-growing, rustic, pioneer species, with the potential to fix nitrogen. However, this plant is attacked by pests. It is important to know, among them, the most important. This study aims to evaluate the herbivorous insects (loss sources) and their natural enemies (solution sources) on 48 A. mangium saplings. They were classified according to their ability to damage or reduce the source of damage on these saplings using the percentage of the Importance Index-Production Unknown (% I.I.-P.U.). The loss sources Trigona spinipes Fabr. (Hymenoptera: Apidae), Aleyrodidae (Hemiptera), Phenacoccus sp. (Hemiptera: Pseudococcidae), Aethalion reticulatum L. (Hemiptera: Aethalionidae), and Tropidacris collaris Stoll. (Orthoptera: Romaleidae), showed the highest % I.I.-P.U. on leaves of A. mangium saplings. The solution sources Oxyopidae (Araneae), Pseudomyrmex termitarius (Smith) (Hymenoptera: Formicidae), and Brachymyrmex sp. (Hymenoptera: Formicidae), showed the highest % I.I.-P.U. on leaves of A. mangium saplings. The number of Lordops sp. (Coleoptera: Curculionidae) was reduced per number of Brachymyrmex sp.; that of T. collaris those of Oxyopidae and Brachymyrmex sp.; and that of Tettigoniidae that of P. termitarius, totaling 8.93% of reduction of these herbivorous insects (numbers) on A. mangium saplings. These herbivorous insects turn into problems in commercial plantations of this plant since to are related to pests in some crops. These tending ants and Oxyopidae can be important on A. mangium commercial crops because they can reduce the number of these herbivorous insects.
马占相思树（Willd.）（豆目：豆科）由于其生长迅速、适应性强且为先锋物种，具有固氮潜力，在退化地区恢复项目中显示出适用性。然而，这种植物受到害虫侵袭。了解其中最重要的害虫很重要。本研究旨在评估48株马占相思树苗上的食草昆虫（损失源）及其天敌（解决源）。根据重要性指数 - 产量未知百分比（% I.I.-P.U.）对它们损害或减少这些树苗损害源的能力进行分类。损失源刺足木蜂（Trigona spinipes Fabr.）（膜翅目：蜜蜂科）、粉虱科（半翅目）、粉蚧属（半翅目：粉蚧科）、网目埃蝽（Aethalion reticulatum L.）（半翅目：埃蝽科）和红腿草螽（Tropidacris collaris Stoll.）（直翅目：瘤蝗科）在马占相思树苗叶片上显示出最高的% I.I.-P.U.。解决源猫蛛科（蜘蛛目）、白蚁客蚁（Pseudomyrmex termitarius (Smith)）（膜翅目：蚁科）和短猛蚁属（Brachymyrmex sp.）（膜翅目：蚁科）在马占相思树苗叶片上显示出最高的% I.I.-P.U.。每有一定数量的短猛蚁属，长颚象属（鞘翅目：象甲科）的数量就会减少；每有一定数量的猫蛛科和短猛蚁属，红腿草螽的数量就会减少；每有一定数量的白蚁客蚁，螽斯科的数量就会减少，马占相思树苗上这些食草昆虫（数量）总共减少了8.93%。这些食草昆虫在这种植物的商业种植园中会引发问题，因为它们与某些作物的害虫有关。这些护蚁和猫蛛科在马占相思商业作物上可能很重要，因为它们可以减少这些食草昆虫的数量。
