Department of Plant Protection, College of Agriculture, Lorestan University, Khorramabad, Iran.
Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.
Neotrop Entomol. 2021 Dec;50(6):940-947. doi: 10.1007/s13744-021-00893-z. Epub 2021 Nov 4.
The green peach aphid, Myzus persicae(Sulzer) (Hemiptera: Aphididae), is an important pest of several worldwide crops. This study evaluated the effects of plant micronutrients (alpha-iron (Fe), zinc sulfate (Zn), copper sulfate (Cu), and manganese sulfate (Mn)) on digestive enzymes, intermediary metabolism, and antioxidant responses of M. persicae reared on bell pepper plants under greenhouse conditions. Results showed that M. persicae reared on Mn-treated plants had the digestive enzymes α-amylase, trypsin, chymotrypsin, and elastase inhibited. Moreover, the aphids fed on Mn-treated plants showed the highest activities of catalase, glucose-6-phosphate dehydrogenase, superoxide dismutase, and peroxidase, and lower increase rate of malondialdehyde. These findings indicate that micronutrients can impact the aphid metabolism, which may aid control strategies against this insect pest. We raise the potential for beneficial use of foliar fertilizer application as a pest management tool that could be further evaluated on a production and economical scale, as well as with other insect pests.
绿桃蚜，桃蚜（半翅目：蚜科），是几种世界性作物的重要害虫。本研究评价了植物微量元素（α-铁（Fe）、硫酸锌（Zn）、硫酸铜（Cu）和硫酸锰（Mn））对温室条件下在辣椒植株上饲养的桃蚜的消化酶、中间代谢和抗氧化反应的影响。结果表明，在 Mn 处理过的植物上饲养的桃蚜抑制了α-淀粉酶、胰蛋白酶、糜蛋白酶和弹性蛋白酶的消化酶。此外，喂食 Mn 处理过的植物的蚜虫表现出最高的过氧化氢酶、葡萄糖-6-磷酸脱氢酶、超氧化物歧化酶和过氧化物酶活性，以及较低的丙二醛增长率。这些发现表明，微量元素可以影响蚜虫的新陈代谢，这可能有助于对抗这种害虫的控制策略。我们提出了叶面肥应用作为害虫管理工具的潜在有益用途，这可以在生产和经济规模上以及与其他害虫一起进一步评估。
