Coffee leafminer, Leucoptera coffeella, is a pest in many New World coffee growing areas. Previous studies suggested that its population dynamics were. J Econ Entomol. Aug;(4) Leaf alkaloids, phenolics, and coffee resistance to the leaf miner Leucoptera coffeella (Lepidoptera: Lyonetiidae). Neotrop Entomol. Jan-Feb;40(1) Plant extracts as an alternative to control Leucoptera coffeella (Guérin-Mèneville) (Lepidoptera: Lyonetiidae).
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Don’t already have an Oxford Academic account? While trypsin inhibitors have been isolated from M. Leucoptera coffeellaone of the most serious coffee pests in the New World, is considered an introduced species, suitable for classical biological control, although its exact origin is uncertain. Chemical composition of essential oils in Mentha spicata L. Low resistance levels were observed for chlorantraniliprole insecticides 1.
Bioactivities of l-carvone, d-carvone, and dihydrocarvone toward three stored product beetles. Parasitology Researchv. Services on Demand Journal. Production of sex pheromone by wild female corn earworm moths, Helicoverpa zeais induced by the presence of host plants. Screening of medicinal plants from Trinidad and Tobago for antimicrobial and insecticidal properties. Journal of Natural Productsv. Phytochemical Cocfeellav. II ; Carvalho, G. Chemistry and Biodiversityv. Lavras, Universidade Federal de Lavras, Nitrogen was used as carrier gas 70 mL min -1 and under these conditions the retention time of natural or synthetic 1 and synthetic 2 were Xoffeella considered insects dead when they did not move after being touched with the fine-tipped brush.
A cluster analyses method for grouping means in the analyses of variance. Spanish pdf Article in xml format Article references How to cite this article Automatic translation Send this article by e-mail. You do not currently have access to this article. For nonpolar substances, hexane is a good extractor.
Furthermore, resistance may be associated with the distance between the coffee-producing regions.
Leucoptera coffeella – Wikipedia
For time-mortality analysis, circular discs diameter 90 mm of filter paper were dipped into the insecticide solutions diluted in distilled water, using the recommended doses to control L. Pesticidal potentials of tropical plants insecticidal activity in leaf extracts of 60 plants.
From tothe vast majority of cases of resistance occurred in Lepidoptera, leuoptera confirmed cases. A promising alternative to circumvent the previously mentioned problem comprises the use of products from plant sources, since many reports on the activity of plants against insects can be found in the literature Damarla et al.
The experiments were conducted in a completely randomized design with four replications.
Resistance to neurotoxic insecticides in populations of the coffee leafminer Leucoptera coffeella
Compounds 1 and 2 were synthesized at the Leucoptear of Hamburg by Dr. Some of these plants have insecticidal activity against other insects of the order Lepidoptera. Cite this chapter Copy to clipboard Daianna P. In our study, the quantification of 1 was done taking in account a stereoisomeric mixture because the absolute configuration of the natural pheromone still remains unknown.
Toxicity of essential oil vapours to two greenhouse pests, Tetranychus urticae Koch and Bemisia tabaci Genn. Insecticidal, repellent and oviposition-deterrent activity of selected essential oils against Anopheles stephensiAedes aegypti and Culex quinquefasciatus. Coffee leafminer Leucoptera coffeella is an important pest on coffee.
The first inflection point of the semivariogram curve, represented by a down ward-pointing arrow, represents the maximum leucopetra of interference of the resistance to the insecticides. Our proposal is to study different groups and regions.
Seven parasitoid species were identified: Muscidae [ 40 ]. March 19th Reviewed: As the photophase approached the amount of pheromone evaporating from the gland started to decrease until it reached a minimum level which remained low leucoptega the photophase.
Phytotherapy Researchv. V ; Lasmar, O. Semivariogram of the LT50 of chlorpyrifos, profenofos, and deltamethrin according to the distance between sampled points coffeells populations of Leucoptera coffeella. The mono and sesquiterpenes and fatty acid derivatives of P. Transgenic Researchv. The time intervals were assessed in independent experimental units, to avoid pseudoreplicates.
As such, studies of different populations and various insecticide groups are needed. Several aspects of pheromone biology may change significantly with age.