Dept of Crop Protection, School of Agriculture, São Paulo State Univ (FCA / UNESP), Botucatu, São Paulo, Brazil.
Research Center for Family Agriculture, Agricultural Research and Rural Extension Company of Santa Catarina (CEPAF/EPAGRI), Chapecó, Brazil.
Neotrop Entomol. 2021 Dec;50(6):966-975. doi: 10.1007/s13744-021-00902-1. Epub 2021 Oct 21.
The whitefly Bemisia tabaci(Gennadius) MEAM 1 is one of the main insect species that colonize tomato plants and cause direct and indirect damage. The use of botanical derivatives may be a valuable method of insect control to reduce the inappropriate use of synthetic insecticides on crops. In this study, we evaluated the bioactivity of ethanolic extracts prepared from Annonaceae species compared to that of the commercial insecticides based on acetogenins (Anosom® 1 EC, anonine 10,000 mg L) and thiamethoxam (Actara® 250 WG) on eggs, nymphs, and adults of the whitefly in tomato. Initially, the effects of the ethanolic seed extracts of Annona mucosa (Jacq.), Annona muricata L., and Annona sylvatica A.St.-Hil on adult insect behavior were evaluated. The rates of infestation and oviposition deterrence indicated the inhibitory effects of the extract of A. muricata (500 mg L). Then, the possible systemic effects of the extracts were evaluated; however, no effects on nymphal development or insect viability were observed. The LC and LC of the ethanolic extract of A. mucosa seeds at 500 mg L (10.83 and 200.24 mg L, respectively) were estimated and were used in ovicidal tests and compared to positive (Actara® 250 WG and Anosom® 1 EC), and negative controls (water: acetone, 1:1 v/v). At LC, fewer eggs (35.00%) had hatched at 13 days after application than in the other treatments. The results of this study demonstrate the potential use of botanical derivatives of Annona spp. for the management of B. tabaci MEAM 1 in tomato.
烟粉虱 Bemisia tabaci(Gennadius) MEAM 1 是主要的入侵番茄植株并造成直接和间接损害的昆虫物种之一。使用植物源衍生物可能是控制昆虫的一种有价值的方法，可以减少对作物上合成杀虫剂的不适当使用。在这项研究中，我们评估了番荔枝科物种的乙醇提取物与基于醋酸盐（Anosom® 1 EC，anonine 10,000 mg L）和噻虫嗪（Actara® 250 WG）的商业杀虫剂对番茄上的粉虱卵、若虫和成虫的生物活性。首先，评估了 Annona mucosa (Jacq.)、Annona muricata L. 和 Annona sylvatica A.St.-Hil 的乙醇种子提取物对成体昆虫行为的影响。侵染率和产卵驱避率表明，A. muricata 提取物（500 mg L）具有抑制作用。然后，评估了提取物可能的系统性作用；然而，未观察到对若虫发育或昆虫活力的影响。A. mucosa 种子乙醇提取物的 LC 和 LC 分别在 500 mg L（分别为 10.83 和 200.24 mg L）时估计，并用于杀卵试验，并与阳性（Actara® 250 WG 和 Anosom® 1 EC）和阴性对照（水：丙酮，1:1 v/v）进行比较。在 LC 下，施药后 13 天，孵化的卵（35.00%）较少。这项研究的结果表明，番荔枝属植物源衍生物在番茄上对烟粉虱 Bemisia tabaci MEAM 1 的管理具有潜在的应用价值。
