A5017911386- Insect-Plant Interactions and Control
- Insect Pest Control Strategies
- Insect and Pesticide Research
- Plant and animal studies
- Hemiptera Insect Studies
- Insect Resistance and Genetics
- Insect behavior and control techniques
- Agricultural pest management studies
- Plant Virus Research Studies
- Plant Parasitism and Resistance
- Plant Physiology and Cultivation Studies
- Insect Pheromone Research and Control
- Agricultural Practices and Plant Genetics
- Weed Control and Herbicide Applications
- Plant Disease Management Techniques
- Banana Cultivation and Research
- Entomopathogenic Microorganisms in Pest Control
- Nematode management and characterization studies
- Forest Insect Ecology and Management
- Insects and Parasite Interactions
- Phytoplasmas and Hemiptera pathogens
- Agronomic Practices and Intercropping Systems
- Berry genetics and cultivation research
- Growth and nutrition in plants
- Plant Pathogens and Fungal Diseases
Arizona Western College
2014-2025
University of Arizona
2014-2025
Yuma Oncology Center
1997
University of California Office of the President
1996
Executive Office of the President
1996
Arkansas Agricultural Experiment Station
1990-1995
Oklahoma State University
1989-1991
Fordham University
1968
Abstract Background Molecular genetic approaches have become vital to understanding the evolutionary processes that act on insect pest populations. From mapping development of resistance monitoring and predicting movement, genomic tools can inform enhance management programs. Here, we used whole genome sequencing population genomics unravel novel patterns structure, linkage, selection across a notorious agricultural pest, fall armyworm. Results Our data strongly support existence two...
An invasive stink bug, Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae), was discovered in the Western Hemisphere 2008 near Los Angeles, CA, presumably introduced on container shipments arriving at Port of Long Beach. In subsequent 4 years, it has spread throughout southern California, areas Arizona, Nevada, and Utah, west-central New Mexico, extreme western Texas. We initiated studies seasonality host range this insect as adapts to non-native habitat. have learned that bagrada bug a...
The refuge strategy is used worldwide to delay the evolution of pest resistance insecticides that are either sprayed or produced by transgenic Bacillus thuringiensis (Bt) crops. This based on idea refuges host plants where pests not exposed an insecticide promote survival susceptible pests. Despite widespread adoption this approach, large-scale tests have been problematic. Here we tested with 8 y data and pyriproxyfen in 84 populations sweetpotato whitefly ( Bemisia tabaci ) from cotton...
Bagrada hilaris Burmeister is an invasive species native to the old world and currently threatening commercial vegetable production in southwestern USA. A series of no-choice experiments were conducted investigate multiple plant responses six Brassica crops feeding by B. hilaris. Varying numbers adults caged onto cotyledon, 2-true leaf, 4-true leaf-stage plants broccoli, green cabbage, red cauliflower, kale, radish for a 48-h infestation period. Feeding damage on leaf surfaces, total area,...
Overwintering success is an important determinant of arthropod populations that must be considered as climate change continues to influence the spatiotemporal population dynamics agricultural pests. Using a long-term monitoring database and biologically relevant overwintering zones, we modeled annual seasonal common pest, Helicoverpa zea (Boddie), based on three suitability zones throughout North America using four decades soil temperatures: southern range (able persist through winter),...
Abstract BACKGROUND: Development of pyriproxyfen and neonicotinoid resistance in the B‐biotype whitefly recent introduction Q biotype have potential to threaten current management programs Arizona. The possibility integrating novel anthranilic diamides chlorantraniliprole cyantraniliprole into program tackle these threats largely depends on whether compounds cross‐resistance with neonicotinoids whiteflies. To address this question, authors bioassayed a susceptible strain,...
A new pest of cole crops, the Bagrada bug, was recently found infesting commercial Brassica crops throughout southwestern desert growing areas Arizona and California. The authors anticipate that this will become permanently established. Development information on bug's biology ecology our local be important for developing management recommendations. Accepted publication 2 May 2010. Published 21 June
Drip, or trickle, irrigation was used as early the late 1800s, although it not until development of modern plastics during World War II that drip became economically possible. Developed initially to reduce prevent moisture stress in plant, systems also offer an excellent method apply agrichemicals root zone plants. The application insecticides through a system first attempted 1980s by using various carbamates and organophosphates, success limited. Currently, several newly-developed such...
Theory indicates that landscape composition affects transmission of vector-borne crop diseases, but few empirical studies have investigated how plant disease epidemiology. Since 2006, Bemisia tabaci (Gennadius) has vectored the cucurbit yellow stunting disorder virus (CYSDV) to cantaloupe and honeydew melons (Cucumis melo L.) in southwestern United States northern Mexico, causing significant reductions yield fall increased use insecticides. Here, we show a landscape-based approach allowing...
A series of host-choice tests were conducted under greenhouse conditions to evaluate the host selection behavior Bagrada bug, hilaris on commercial cruciferous seedlings. In addition, a separate choice test was investigate B. adults for broccoli plants various growth stages: cotyledon, 1-leaf, 2-leaf, and 4-leaf plant stages. comparing among seedlings, observations attractiveness, acceptance susceptibility cultivars measured by recording numbers per plant, time at which feeding damage first...
Cucurbit yellow stunting disorder virus (CYSDV) is a cosmopolitan viral disease transmitted by Bemisia tabaci that infects cucurbit crops. Cantaloupe production in the southwestern USA has been confronted epidemics of CYSDV since 2006 when it was first identified Arizona and California. As phloem-limited vectored semi-persistent manner B. tabaci, transmission characteristics may be suppressed select insecticide applications.Eight active ingredients formulated as foliar and/or soil-applied...
Field-collected nymphs and adults of Bagrada hilaris (Burmeister) (Hemiptera: Penatatomidae) from three locations were evaluated for susceptibility to insecticides representing 10 classes insecticide chemistry. Although relative susceptibilities differed between leaf-spray leaf-dip Petri dish bioassays, consistently low LC50 values determined chlorpyrifos, bifenthrin, lambda-cyhalothrin. Fenpropathrin methomyl had intermediate values. Susceptibility dinotefuran varied depending on the...
Bagrada hilaris (Burmeister) (Hemiptera: Pentatomidae) is a non-native stink bug that feeds primarily on cole crops and wild mustards. Its invasion into desert agriculture in California Arizona presents conundrum between rapid pest development at warm temperatures severe damage to cool season crops. In this study, the survival of B. were determined nine constant (ranging from 20-42°C) when reared organically grown broccoli florets. Egg hatching was greatly delayed 20°C, first instar nymphs...
Journal Article Distribution Patterns of Bemisia tabaci (Homoptera: Aleyrodidae) in Cantaloupe Fields Arizona Get access Athayde Tonhasca, Jr, Jr Department Entomology, University Arizona, Tucson, AZ 85721 Search for other works by this author on: Oxford Academic PubMed Google Scholar John C. Palumbo, Palumbo 1 1Yuma Valley Agricultural Center, Yuma, 85364. David N. Byrne Environmental Volume 23, Issue 4, August 1994, Pages 949–954, https://doi.org/10.1093/ee/23.4.949 Published: 01 1994...
Patterns of diel activity and behavior the Bagrada bug, hilaris (Burmeister) (Hemiptera: Pentatomidae), were investigated in a series field greenhouse experiments Yuma, AZ. Adults B. monitored by on-site direct observation on broccoli cauliflower plants large-block experimental plots at various intervals throughout consecutive 24-h periods. In trials, mean number adults differed among sampling times, with peak abundance observed consistently between 1300 1800 hours. There was positive...
Liriomyza trifolii (Burgess) and L. sativae Blanchard were the leafminer species found in commercial experimental plantings of lettuce Yuma Valley, AZ. was dominant observed fields fall surveys, although populations did not reach damaging levels. In plots, principal observed. The sharp contrast composition between grown plots likely a reflection pesticide-use patterns fields. Seasonal abundance parasitism leafminers from 1990 to 1992 varied with temperature planting date. Adults, active...