试验丁香提取物的浓度。有机溶剂对食草毛虫的形态。玉米科植物害虫

A. Sutikno, Rari Anggraini
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引用次数: 0

摘要

玉米(Zea mays L.)是继水稻和小麦之后世界上最重要的粮食作物之一。在印度尼西亚,因粘虫(Spodoptera litura F.)造成的玉米产量损失可达80%。丁香叶(Syzygium aromaticum L.)是一种有潜力作为植物杀虫剂防治害虫的植物。本研究旨在用乙醇有机溶剂获得丁香叶提取物的浓度。该研究于2022年2月至4月在廖内大学农学院植物害虫实验室进行。该研究采用完全随机设计(CRD)进行实验,包括6个处理,4个重复,获得24个实验单位。丁香叶提取物的乙醇有机溶剂浓度分别为0.0%、0.2%、0.4%、0.6%、0.8%和1.0%。中的应用结果表明,丁香叶中提取有机溶剂浓度为0.8% (8 ml.l-1水)是美国的最佳浓度总死亡率litura基于BNJ测试结果在5%的水平,能够引起总死亡率的77.50%,死亡的一个初始时间8小时后应用程序和致死时间50 21小时后应用程序,但它没有被说成是有效的,因为它没有达到80%。1%的浓度是防治斜纹夜蛾的有效浓度。因为它能使总死亡率为82.50%,施用后5 h的初始死亡时间为50,施用17.50 h时致死时间为50。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
UJI EFEKTIVITAS KONSENTRASI EKSTRAK DAUN CENGKEH (Syzygium aromaticum L.) BERPELARUT ORGANIK TERHADAP MORTALITAS ULAT GRAYAK (Spodoptera litura F.) HAMA TANAMAN JAGUNG
Corn (Zea mays L.) is one of the most important food crop in the world after rice and wheat. Yield loss in corn due to armyworm (Spodoptera litura F.) in Indonesia can reach 80%. Clove leaf (Syzygium aromaticum L.) is one of the plants that have the potential as a vegetable insecticide to control pests. This study aims to obtain the concentration of clove leaf extract (S. aromaticum) with ethanol organic solvents. The research was carried out at the Plant Pest Laboratory, Faculty of Agriculture, Riau University from February to April 2022. The study was conducted experimentally using a completely randomized design (CRD) consisting of six treatments with four replications that obtained 24 experimental units. The treatments given were several concentrations of clove leaf extract with ethanol organic solvents, namely 0.0%, 0.2%, 0.4%, 0.6%, 0.8%, and 1.0%. The results showed that the application of clove leaf extract with an organic solvent concentration of 0.8% (8 ml.l-1 water) was the best concentration for total mortality of S. litura based on BNJ test results at 5% level and was able to cause total mortality of 77.50% with an initial time of death of 8 hours after application and lethal time 50 at 21 hours after application, but it has not been said to be effective because it has not reached 80%. A concentration of 1% was an effective concentration for controlling S. litura. because it was able to cause total mortality of 82.50% with an initial time of death 5 hours after application and a lethal time of 50 at 17.50 hours application.
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