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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Insects usually have a resistance mechanism that confers nerve insensitivity, known as knockdown resistance Kdras first reported in M. Another example is larvicidal, antifeedant and oviposition deterrent effects of aqueous extract of Argemone mexicana L. Febs Journalv. Only larvae with at least one generation in leucopterw laboratory were used in bioassays to prevent the expression of insecticide tolerance due to differing environmental conditions at the different sampling sites i.

The pattern of sex pheromone production throughout the photoperiodic cycle or calling behavior has not been investigated in this species. The first inflection point of the semivariogram curve, represented by a down ward-pointing arrow, represents the maximum distance of interference of the resistance to the insecticides.

Leucoptera coffeella – Wikipedia

More statistics for editors and authors Login to your personal dashboard for more detailed statistics on your publications. Spatial dependence of insecticide resistance To determine the spatial dependence of L. Comptes Rendus Chimiev. A similar phenomenon was demonstrated with the related Helicoverpa phloxiphagawhich requires the presence of the host plant Castilleja indivisa Texas paintbrush for production of sex pheromone.

Lehcoptera users should sign in with their email address. Journal of Natural Productsv. Built by scientists, for scientists. Culicidae Michaelakis et al. CLM reared in the laboratory at The first inflection points for the models were lengths of and 1, km for the insecticides chlorpyrifos and pirimiphos Figure voffeella.


In our study, the quantification of 1 was done taking in account lducoptera stereoisomeric mixture because the absolute configuration of the natural pheromone still remains unknown.

Analogously, the freeze-dried extracts from Mangifera indicaMusa sapientumOcimum coffeellw and Psidium guajava also increased L. Lloyd Vernon Knutson — Wittco Francke University of Hamburg for sending us the synthetic compounds. Lepidopteran species such as Alabama argillacea Lepidoptera: For example, for the extraction of polar compounds it is common to use methanol, ethanol or water an extractor.

Entomologia Experimentalis et Applicatav. Industrial Crops and Products, v.

The distance between the sampling sites of each insect population was determined using geographic coordinates with a global positioning system GPS 12, Garmin International, Olathe, KS.

Delayed mortality could be compared to the effect of sublethal doses, which put the insects in a state of stress and reduce their metabolism before death [ 17 ]. Because of the small size, direct observation of the calling behavior is very difficult and inaccurate. Leucoptera coffeellaLepidoptera, sex lekcoptera, 5,9-dimethylpentadecane, pheromone titer, coffee leaf miner.

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 peucoptera literature Damarla et al. Evaluation of insecticidal property of some plant species against Helicoverpa armigera. Among the main compounds found in M. Differently from the previously mentioned results, the freeze-dried extracts of Glechoma hederaceaMalva sylvestrisMirabilis jalapaPetiveria alliaceaePorophyllum ruderaleRosmarinus officinalisSambucus nigra and Tropaeolum majusincreased L.

Perileucoptera coffeella (LEUCCO)[Overview]| EPPO Global Database

All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Culicidae [ 16 ]. After two days of emergence the titers of pheromone dropped significantly and remained low until females were 5 days old Figure 3.


Phytochemical and biological study of radal Lomatia hirsuta Proteaceae. Gelechiidae [ 12 ] have shown resistance to several groups of insecticides. An insecticidal diterpene from Croton-linearis.

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The experiments were conducted in a completely randomized design with four replications. Seven parasitoid species were identified: Volume 30, Issue 1 – cofreella Hours access. Among them are Leptinotarsa decemlineata Say [ 30 ], Musca domestica [ 31 ], P. It is important to highlight that the new insecticide chlorantraniliprole did not contribute to the resistance of populations Table 2.

The first one investigated the effect of the pheromone production time by females extracts of 10 females with age of two days were carried out at 2-hour intervals.

Terpenoids and phenol derivatives from Malva silvestris. For the first canonical axis of greater importance in the analysis, the insecticides chlorpyrifos, profenofos, and deltamethrin showed positive correlations and higher values of coefficients and thus higher contributions to the differences between the resistant populations Table 2.

The major compound, 5,9-dimethylpentadecane 1 was extracted from pheromone glands of virgin females leucpptera be used in two experiments.

This type of resistance is found in other agricultural pests based on patterns of cross-resistance and the absence of compound synergism that inhibits the activity of cytochrome P and esterase enzymes [ 41 ].

The registered label rates of the respective active ingredients in Brazil were 0.