A5080532293- Insect Pest Control Strategies
- Insect Resistance and Genetics
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Entomopathogenic Microorganisms in Pest Control
- Agricultural pest management studies
- Plant and soil sciences
- Essential Oils and Antimicrobial Activity
- Moringa oleifera research and applications
- Mosquito-borne diseases and control
- Forest Insect Ecology and Management
- Plant Physiology and Cultivation Studies
- Postharvest Quality and Shelf Life Management
- Insect behavior and control techniques
- Phytochemical compounds biological activities
- Agricultural and Food Production Studies
- Phytoplasmas and Hemiptera pathogens
- Mycotoxins in Agriculture and Food
- Hymenoptera taxonomy and phylogeny
- Silkworms and Sericulture Research
- Coleoptera: Cerambycidae studies
- Flowering Plant Growth and Cultivation
- Nematode management and characterization studies
- Insect Utilization and Effects
- Viral Infections and Vectors
Colegio de Postgraduados
2013-2023
University of Concepción
2003
University of California, Riverside
1983
Cereals constitute a relevant part of human and domestic animal diet. Under storage conditions, one the most significant problems these crops is insect pests as maize weevil (Sitophilus zeamais Motschulsky). This species usually controlled by means synthetic insecticides but toxic residues resistance has led to search for more friendly control alternatives such botanical insecticides. The aim this research was evaluate, under laboratory insecticidal properties powder essential oil peumo...
Se evaluaron preparados en polvo de 13 plantas aplicados solo o mezcladas con carbonato calcio para el control Sitophilus zeamais condiciones laboratorio. Con este objetivo se mezclaron 250 g maiz los polvos respectivos a una concentracion del 1% (p/p) frascos 400 ml y posteriormente infestaron 20 parejas S. semana edad. En total 44 tratamientos, incluyendo un testigo absoluto, diseno estadistico completamente al azar arreglo factorial. Los tra-tamientos mortalidad adultos mayor 40%...
The maize weevil Sitophilus zeamais Motschulsky is a worldwide key pest of stored products.Usually contact insecticides or fumigants are used against it, but problems as toxic residues, human intoxications, and resistance have triggered the search for alternative control methods use essential oils.The objective this research was to assess under laboratory conditions, insecticidal properties Laurelia sempervirens (Ruiz & Pav.) Tul.essential oil S. zeamais.In toxicity bioassay assessed...
Insecticidal properties of powdered boldo, Peumus boldus Molina, were evaluated against larvae fall armyworm, Spodoptera frugiperda (J. E. Smith), and corn earworm, Helicoverpa zea (Boddie). Bioassays assessed development, feeding preferences, mortality neonate third instars. For both species, most (65 67.5%, respectively) was obtained with 8% boldo concentration incorporated into an artificial insect diet, the LC50 LC90 for armyworm 6.8 25.9 g kg-1 diet 3.8 35.6 earworm. With increased...
The insecticidal properties of water-extract Peumus boldus Molina and its effect on the development cycle feeding habits Spodoptera frugiperda J.E.Smith Helicoverpa zea Boddie were evaluated under laboratory conditions in concentrations 0.25, 0.5, 1.0, 2.0, 4.0, 8.0% (w/w).Spodoptera was most susceptible with 75% mortality at 7 d 8% P. concentration, while H. had only 30% mortality.LC50 2.31 mL kg -1 for S. 16.05 zea.When extract concentration increased diet, larval size weight, percentage...
Diaphorina citri Kuwayama is one of the most destructive citrus pests worldwide. It controlled mainly through applications conventional insecticides. Methodologies used to estimate resistance insecticides do not correlate with field efficacy, and provide timely reliable information make decisions at a site where spraying needed. The use diagnostic doses 30-min exposure proposed for estimating D. imidacloprid, spinosad, malathion chlorpyrifos orchard level.Under laboratory conditions, we...
Abstract Diaphorina citri Kuwayama (Hemiptera: Liviidae) is the most severe pest of citrus worldwide, and it has a high capacity to develop insecticide resistance. We estimated intraplot variation resistance imidacloprid in adults collected from an orchard (8 ha) Persian lemon, Citrus latifolia Tan., Martínez de la Torre, Veracruz, Mexico. divided into eight sections similar size. Adults were sampled each section assess their response F1. conducted two field samplings: November 2020 May...
Cut rose growers in the municipalities of Villa Guerrero, Tanancingo, Coatepec Harinas, and Ixtapan de la Sal, state Mexico, have reported low effectiveness abamectin control Tetranychus urticae, possibly due to development resistance. The objective this study was determine response 4 field populations 1 population susceptible acaricide. values lethal concentration (LC) at 50% mortality fluctuated between 0.0012 25.37 mg per L, while relative (RR) varied from 2,226 21,141. LC 95% 0.008...
The maize weevil (Sitophilus zeamais Motschulsky) is one of most important pest stored seeds worldwide, but its current control method based on the use synthetic insecticides, usually leading to undesirable problems such as insecticide residues treated food, human intoxications, and insect resistance development.Therefore search friendly alternative methods required.The aim this study was assess, under laboratory conditions, insecticidal properties Peumus boldus Molina, Laurelia sempervirens...
Spiromesifen is an insecticide that inhibits the synthesis of lipids and, in Mexico, its use against Tomato-Potato Psyllid, Bactericera cockerelli (Sulc), on chili pepper (Capsicum annum), tomato (Lycopersicon sculentum) and potato (Solanum tuberosum) began 2005; however more information needed to understand toxicity this insect pest.The aim research was determine spiromesifen each biological stages tomato-potato psyllid, effect fertility viability eggs deposited by treated females, as well...
The maize weevil (Sitophilus zeamais Motschulsky, 1855; Coleoptera, Curculionidae) is one of the most important pests associated with stored grains. It controlled almost exclusively synthetic insecticides. Thus, leading to problems such as pollution and resistance development. Hence an alternative use natural compounds edible mushrooms derivates. aim this research was assess, under laboratory conditions, insecticidal insectistatic effect a hydroalcoholic extract Pleurotus ostreatus (Jacq.)...
El pimiento boliviano (Schinus molle L.) es un árbol del cual se han identificado metabolitos secundarios con actividad insecticida. objetivo fue evaluar, en condiciones de laboratorio, la insecticida e insectistática polvo y aceite esencial frutos S. sobre Sitophilus zeamais. En los bioensayos toxicidad por contacto mayor mortalidad obtuvo el al 8,0 % 96,3% insectos muertos una CL50 3,82 mL 100 g-1 maíz (3,82%). A misma concentración mostró 63,8% 7,95 g (7,95%). Ambos tratamientos no...
In two fi eld-collected populations of de Bemisia tabaci (Gennadius) B biotype previously selected with the neonicotinoid insecticide thiamethoxam (NEO-R, NEO-N), and a population susceptible to insecticides (SUSC), level response thiametoxam, as well life fertility tables were determined.At LC 95 , NEO-R showed resistance ratio (RR ) value 8.8-fold, an intrinsic rate increase (r m 0.72.The tness NEO-N in relation SUSC was 1.5 2.0, respectively.The RR for 1.9-fold; it´s r 0.082, while...
Seven technical grade insecticides were evaluated against a susceptible population and two field populations of the potato tuberworm Phthorimaea operculella (Zeller) by topical application to third-instar larvae. Using standard laboratory colony, we calculated median lethal doses (LD50) 0.39, 0.059, 0.12, 0.00022, 0.18, 0.010 0.0007 μg/larvae for DDT, methyl parathion, ethyl azinphosmethyl, malathion, carbaryl permethrin, respectively. By comparison, found that wild from Oyameles, Puebla was...
Although whiteflies Tetraleurodes perseae (Nakahara) (Hemiptera: Aleyrodidae) are considered a secondary pest of avocado crops, their presence and the damages that they cause can decrease crop vigor affect production. The objective present work was to determine population fluctuation altitudinal distribution T. Nakahara whitefly in trees, as well number possible generations one year. study done three orchards Morelos state, located at different altitudes, from February 2014 April 2015....