TY - JOUR AU - Roddee, Jariya AU - Nonkheang, Nuntana AU - Klangjoho, Suchawadee PY - 2020/12/22 Y2 - 2024/03/29 TI - Efficacy of botanical extracts against tomato mealybug Ferrisia virgata (Hemiptera: Pseudococcidae) JF - วารสารแก่นเกษตร JA - KAJ VL - 48 IS - 6 SE - DO - UR - https://li01.tci-thaijo.org/index.php/agkasetkaj/article/view/252087 SP - 1434-1441 AB - <p>Mealybugs <em>Ferrisia virgata </em><em>(</em>Hemiptera: Pseudococcidae) are the one of the noxious sucking insect pest infesting horticulture crops including tomatoes. Efficacy of botanical extracts of bird chili<em> Capsicum frutescens</em> L., garlic, <em>Allium sativum</em> L., black pepper <em>Piper nigrum</em> L., and neem, <em>Azadirachta indica </em>was investigated on <em>F</em><em>. virgata </em>at the Entomology Laboratory, Suranaree University of Technology, under an ambient temperature of 27 ± 2 ◦C, and relative humidity 60 – 70%. The plant extracts at concentrations 0.2, 0.5 and 1.0 % were applied for tomato and over the mealybugs.Experiment was arranged in a completely randomized design in four replicates. All plant extracts at the highest concentration of 1.0% showed the highest percentage mortality (100%) at 48 hours after an exposure. All concentrations at 24 hours after an exposure, <em>Az</em><em>. indica</em> extract had significantly reduced (<em>P</em>&lt;0.05) mealybugs population followed by <em>P</em><em>. nigrum, C. frutescens</em> and <em>Al</em><em>. sativum</em>. The results reveal that extracts from the three botanical plants (<em>Az. indica, P. Nigrum, C.frutescens</em>) are effective in controlling <em>F</em><em>. virgata </em>and could serve as an alternative to synthetic insecticides.</p> ER -