title: Plant extracts as an alternative to control Leucoptera coffeella (Guérin-Mèneville) (Lepidoptera: Lyonetiidae).
abstract: We evaluated the effects of crude extracts from the plantain Plantago lanceolata and the bitter gourd Momordica charantia on the oviposition preference and development of the coffee leaf miner Leucoptera coffeella Guérin-Mèneville & Perrottet under laboratory and/or greenhouse conditions. The ovicidal effects of these extracts were also studied in a greenhouse. Plantago lanceolata and M. charantia extracts also underwent fractionation directed by oviposition tests with the coffee leaf miner. The extracts of both plants reduced L. coffeella oviposition and egg hatching, apparently as a result of action of plant metabolites on the embryo. Adults originating from eggs treated with the extracts exhibited similar survival rates, but a higher female/male ratio. Fecundity was reduced for females obtained from eggs treated with the M. charantia extract. Partial chemical analysis indicated that both extracts produced polar fractions that reduced the oviposition of L. coffeella on coffee leaves under laboratory conditions. The extracts of P. lanceolata and M. charantia have potential for use in the development of new products to control the coffee leaf miner.
authors: Depto de Biologia, Univ Federal de Lavras, Lavras, MG, Brasil.
authors: D S
authors: DS
authors: Alves
authors: D F
authors: DF
authors: Oliveira
authors: G A
authors: GA
authors: Carvalho
authors: H M dos
authors: HM
authors: Santos
authors: D A
authors: DA
authors: Carvalho
authors: M A I
authors: MA
authors: Santos
authors: H W P de
authors: HW
authors: Carvalho
mesh_terms: D000818:Animals; D007915:Lepidoptera / Q000033:anatomy & histology / Q000187:drug effects* / Q000254:growth & development; D010058:Oviposition / Q000187:drug effects; D010572:Pest Control, Biological; D010936:Plant Extracts / Q000494:pharmacology*; D010943:Plantago
chemical_list: D010936:Plant Extracts