TY - JOUR AU - Wuryantini, Susi AU - Harwanto, Harwanto AU - Yudistira, Rizky Arya PY - 2019/12/24 Y2 - 2024/03/28 TI - TOKSISITAS BIOINSEKTISIDA EKSTRAK KULIT JERUK TERHADAP KUTU LONCAT JERUK Diaphorina citri Kuwayama (Hemiptera: Psyllidae) SEBAGAI VEKTOR PENYAKIT CVPD JF - JURNAL AGRONIDA JA - J. Agronida VL - 5 IS - 2 SE - Articles DO - 10.30997/jag.v5i2.2312 UR - https://ojs.unida.ac.id/JAG/article/view/2312 SP - AB - <span class="fontstyle0">Diaphorina citri is an important pest in citrus plants because of its role as a vector of Citrus<br />Vein Phloem Degeneration (CVPD) disease. The study was a follow-up test of the preliminary<br />tests carried out previously. The aim of this study was to determine the effective concentration<br />of bioinsecticide of Japansche Citroen (JC) orange peel extract in controlling D. citri in the<br />phases of nymph and imago. The concentration tested was 0% (control); 0.01%; 0.1%; 1%;<br />and 10% (v / v) with a comparison of imidacloprid insecticide 0.1%. The test results showed<br />that the JC citrus peel extract at a concentration of 0.1 effectively controlled the D. citri nymph<br />starting at 96 hours after application (HAA) with a mortality of 69%. The concentration of 1%<br />was effective from 24 HAA with a mortality of 65% and thereafter reaching up to 100% at 120<br />HAA, this was not significantly different from the 10% concentration treatment and<br />imidacloprid insecticide 0.1%, yet was significantly different from other treatments and<br />controls. Citrus peel extract was effective for controlling imago of D. citri on 10%</span> <span class="fontstyle0">concentration. The concentration that was able to provide mortality above 50% was the highest<br />concentration of 10% at 96, 120 and 144 HAA. The results of the probit analysis showed that<br />the LC</span><span class="fontstyle0" style="font-size: 8pt;">50 </span><span class="fontstyle0">values at 24 HAA on nymphs was 1.86 and the LC</span><span class="fontstyle0" style="font-size: 8pt;">90 </span><span class="fontstyle0">value was 9.10. The treatment on<br />imago the LC</span><span class="fontstyle0" style="font-size: 8pt;">50 </span><span class="fontstyle0">at 48 HAA was 21.34 and the LC</span><span class="fontstyle0" style="font-size: 8pt;">90 </span><span class="fontstyle0">was not achieved. The results of the<br />calculation of the LC</span><span class="fontstyle0" style="font-size: 8pt;">50 </span><span class="fontstyle0">and LC</span><span class="fontstyle0" style="font-size: 8pt;">90 </span><span class="fontstyle0">values showed that the value in nymphs was smaller than in<br />imago. This showed that the bioinsecticide of JC citrus peel extract was more effective against<br />nymphs than imago of D. citri. Bioinsecticide of JC citrus peel extract was effective against<br />psyllid nymph of D. citri at concentrations of 0.1 and 1% and against the imago phase was<br />effective at 10%.<br />Keywords: Toxicity, citrus peel extract, Diaphorina citri</span> ER -