| Title: | "Evaluation of Terpene-Volatile Compounds Repellent to the Coffee Berry Borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae)" |
| Author(s): | Gongora CE; Tapias J; Jaramillo J; Medina R; Gonzalez S; Casanova H; Ortiz A; Benavides P; |
| Address: | "Department of Entomology, National Coffee Research Center, Cenicafe, Manizales, Colombia. carmenza.gongora@cafedecolombia.com. Department of Entomology, National Coffee Research Center, Cenicafe, Manizales, Colombia. Department of Biometrics, National Coffee Research Center,, Cenicafe, Manizales, Colombia. Colloidosomes Group, Faculty of Chemistry, University of Antioquia, Medellin, Colombia. Department of Plant Physiology, Coffee Research Center, Cenicafe, Manizales, Colombia" |
| DOI: | 10.1007/s10886-020-01202-5 |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| Abstract: | "The coffee berry borer (CBB) is one of the main coffee pests in the world including Colombia. This pest is difficult to manage because of its cryptic habits and the continuous availability of coffee fruits. Among the new management strategies being tested is the use of volatile compounds as insect repellents. In this work, the behavioral response of female adult CBBs to terpenes previously identified in the CBB-repellent plant species Lantana camara was evaluated. alpha-Terpinene, (R)-limonene, farnesene and beta-caryophyllene terpenes were tested via a Y-tube olfactometer in which ripe coffee fruits were accompanied by terpenes at concentrations between 25 and 200 ppm. Only beta-caryophyllene induced a significant and consistent CBB repellent effect at all tested doses. The protective effect of microencapsulated beta-caryophyllene was then determined under laboratory conditions by incorporating the terpene in a colloidosome-gel system at 2.8 x 10(5) ng/h in the middle of coffee fruits with adult CBBs. The coffee fruits in turn presented a decrease in fruit infestation. Furthermore, the protection of coffee fruits when beta-caryophyllene gels were hung in coffee trees was evaluated in the field; infestations were artificially induced by the use of raisins (CBB-infested old coffee fruits) placed on the ground. Compared with unprotected trees, the trees treated with caryophyllene gels exhibited a 33 to 45% lower degree of infestation. Taken together, the results show that beta-caryophyllene is a promising compound for an integrated pest management (IPM) program in commercial coffee plantations" |
| Keywords: | "Animals Behavior, Animal/drug effects Coffea/*parasitology Coleoptera/*drug effects Female Fruit/parasitology Insect Repellents/isolation & purification/*pharmacology Lantana/chemistry Pest Control/*methods Seeds/parasitology Terpenes/isolation & purifica;" |
| Notes: | "MedlineGongora, Carmenza E Tapias, Johanna Jaramillo, Jorge Medina, Ruben Gonzalez, Sebastian Casanova, Herley Ortiz, Aristofeles Benavides, Pablo eng ENT102003/Cenicafe/ 562_2012/Colciencias/ 2020/08/18 J Chem Ecol. 2020 Sep; 46(9):881-890. doi: 10.1007/s10886-020-01202-5. Epub 2020 Aug 17" |
