A5005533236- Entomopathogenic Microorganisms in Pest Control
- Insect Resistance and Genetics
- Hemiptera Insect Studies
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Insects and Parasite Interactions
- Insect Pest Control Strategies
- Forest Insect Ecology and Management
- Turfgrass Adaptation and Management
- Insect symbiosis and bacterial influences
- Insect and Arachnid Ecology and Behavior
- Isotope Analysis in Ecology
- Genetically Modified Organisms Research
- Extracellular vesicles in disease
- Viral Infectious Diseases and Gene Expression in Insects
- Soybean genetics and cultivation
- Coleoptera: Cerambycidae studies
- Mosquito-borne diseases and control
- Animal Virus Infections Studies
- CRISPR and Genetic Engineering
- Microbial infections and disease research
- Plant Virus Research Studies
- Berry genetics and cultivation research
Texas A&M University
2021-2024
Texas A&M University – Corpus Christi
2020-2024
University of Missouri
2015-2024
Agricultural Research Service
2020-2024
Appalachian Fruit Research Laboratory
2020-2023
United States Department of Agriculture
2022
Can Tho University
2018
Abstract In the United States of America, western corn rootworm, Diabrotica virgifera LeConte (Coleoptera: Chrysomelidae), is commonly managed with transgenic ( Zea mays L.) expressing insecticidal proteins from bacteria Bacillus thuringiensis Berliner (Bt). Colonies this pest have been selected in laboratory on each commercially available transformation event and several resistant field populations also identified; some are resistant. study, progeny a rootworm population collected Minnesota...
Transgenic corn and cotton that produce Cry Vip3Aa toxins derived from Bacillus thuringiensis (Bt) are widely planted in the United States to control lepidopteran pests. The sustainability of these Bt crops is threatened because earworm/bollworm, Helicoverpa zea (Boddie), evolving a resistance toxins. Using sweet as sentinel plant monitor evolution resistance, collaborators established 146 trials twenty-five states five Canadian provinces during 2020–2022. study evaluated overall changes...
Abstract The larger grain borer (Prostephanus truncatus [Horn] [Coleoptera: Bostrichidae]) is a wood-boring insect native to Central America and adapted stored maize cassava. It was accidentally introduced Tanzania became pest across central Africa. Unlike many pests, P. populations can establish move within forests. Consequently, novel infestations occur without human influence. objectives of our study were (i) develop an updated current suitability projection for truncatus, (ii) assess its...
The spotted lanternfly, Lycorma delicatula White, is an invasive planthopper (Hemiptera: Fulgoridae) that was first detected in the United States Berks County, PA, 2014, and has since spread mid-Atlantic region. This phloem-feeding pest a broad host range, including economically important crops such as grape where their feeding causes dieback of infested plants. Monitoring presence abundance L. utmost importance to develop management approaches. Current monitoring practices include sticky...
Lycorma delicatula , White (Hemiptera: Fulgoridae), spotted lanternfly, is a univoltine, phloem-feeding, polyphagous and invasive insect in the USA. Although primary host for this species Ailanthus altissima tree of heaven, L. also feeds on wide range hosts important to USA including cultivated grapevines. Due need classical or augmentative biological control programs reduce impacts across invaded areas, we developed laboratory-based rearing protocol species. Here, evaluated use A. apical...
Abstract Insect resistance to transgenic crops is a growing concern for farmers, regulatory agencies, the seed industry, and researchers. Since 2009, instances of field-evolved Bt or cross have been documented each four proteins available western corn rootworm (WCR), major insect pest. To characterize resistance, WCR populations causing unexpected damage maize are evaluated in plant and/or diet toxicity assays. Currently, it not possible make direct comparisons data from different due...
Halyomorpha halys (Stål) (Hemiptera: Pentatomidae) has been managed primarily with broad-spectrum insecticides in orchard systems. Recently, IPM techniques have developed specifically for managing H. apple orchards to reduce insecticide inputs and take advantage of its perimeter-driven behavior. In 2015 2016, we compared these tactics one another an untreated control measure differences overall crop protection inputs. Tactics included trap-based threshold-triggered spray applications,...
The western corn rootworm (WCR), Diabrotica virgifera LeConte, is the most serious insect pest of (Zea mays L.) in United States and parts Europe, arguably one world's expensive pests to control. Several diet formulations are currently used by industry public researchers evaluate WCR larvae diet-toxicity bioassays. However, a publicly available that produces normative insects physiologically similar reared on roots will accelerate development management technologies. We report new...
Abstract Halyomorpha halys (Stål), the brown marmorated stink bug, is a globally invasive bug species. Its first major outbreak was in United States, where it has caused millions of dollars damage, threatened livelihoods specialty crop growers and impacted row growers, become an extreme nuisance pest around dwellings. The BMSB IPM Working Group, funded by Northeastern Center, central to providing mechanism form multidisciplinary team develop initial subsequent research, Extension, regulatory...
Abstract The invasive spotted lanternfly, Lycorma delicatula White (Hemiptera: Fulgoridae), is a destructive phloem feeder with broad host range that appears to narrow as they reach the adult stage. Little known about how this insect disperses among plants or far may move them. Here, we measured vertical climbing and horizontal jumping capacity evaluated effect of fluorescent marking powders on mobility survivorship L. nymphs adults. All nymphal instars climbed significantly longer distances...
Brown marmorated stink bug, Halyomorpha halys, is native to Asia and has invaded North America Europe inflicting serious agricultural damage specialty row crops. Tools monitor the spread of H. halys include traps baited with two-component aggregation pheromone (PHER), (3S,6S,7R,10S)-10,11-epoxy-1-bisabolen-3-ol (3R,6S,7R,10S)-10,11-epoxy-1-bisabolen-3-ol, synergist, methyl (2E,4E,6Z)-decatrienoate (MDT). Here, an international team researchers conducted trials aimed at evaluating prototype...
Abstract The western corn rootworm, Diabrotica virgifera LeConte (Coleoptera: Chrysomelidae), is considered the most important maize (Zea mays L.) pest in U.S. Corn Belt. Bioassays testing susceptibility to Bacillus thuringiensis Berliner (Bt) and other toxins of rootworm larvae often rely on artificial diet formulations. Successful bioassays for have sometimes been challenging because microbial contamination. Toward long-term goal developing a universal larvae, we compared larval survival,...
Abstract Western corn rootworm ( Diabrotica virgifera LeConte) and northern barberi (Smith Lawrence)) are major pests of maize in the USA. These have been managed with a variety tactics over last century. Both spp. adapted to crop rotation different ways certain regions USA as well some insecticides targeted at them. D. v. has more chemical control measures transgenic methods. Discussed this review challenges associated managing both species, how current management strategies might be...
Brown marmorated stink bug (BMSB), Halyomorpha halys (Stål), is an invasive and severe pest of specialty row crops. A 2-year field study conducted in four Mid-Atlantic states the USA characterized spatial temporal dynamics BMSB populations its association with landscape elements commercial agriculture settings. In each state, two 1 km
Abstract Western corn rootworm ( Diabrotica virgifera LeConte) is a serious pest of maize Zea mays L.) in North America and parts Europe. With most its life cycle spent the soil feeding on root tissues, this insect likely to encounter interact with wide range rhizosphere microbes. Our knowledge role microbes management plant health remains woefully incomplete, yet that could play an important effective strategies. For study, insects were reared soils from different locations. Insects two...
Halyomorpha halys (Stål, 1855) (Hemiptera: Pentatomidae) is an invasive species in the United States, where it has caused significant damage to specialty crops, including apples. While integrated pest management techniques have been developed for H. apple, spray application techniques, unknown how these affect foraging, adventive Trissolcus japonicus (Ashmead, 1904) (Hymenoptera: Scelionidae), and its offspring. In this study, egg masses (unparasitized 2 7 day parasitized pre-treatment) were...
The northern corn rootworm, Diabrotica barberi Smith & Lawrence, has a univoltine life cycle that typically produces one generation year. When rearing the rootworm in laboratory, order to break diapause, it is necessary expose eggs five month cold period before raising temperature. By selective breeding of small fraction hatched without within 19-32 days post oviposition, we were able develop non-diapausing colony generations selection. Through selection, percentages adult emergence from egg...
Abstract The brown marmorated stink bug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), is an invasive pest that attacks specialty and row crops in North America Europe. There has been a concerted effort to reduce frequent broad‐spectrum insecticide applications made on vulnerable crops. One tool emerged recently the use of long‐lasting insecticide‐treated nets (LLINs) as killing agent. Here, we conducted bioassays evaluate effect direct contact deltamethrin‐impregnated LLINs behaviour...
The genus Decarloa (Naucoridae: Laccocorinae) is monotypic and endemic to the island of Hispaniola. Other than its inclusion in a catalog Naucoridae, nothing concerning it has been published since original description. Recently, adults second through fifth instars darlingtoni La Rivers were collected from Armando Bermudez National Park Dominican Republic. All specimens submerged rocks near margin stream. Females have forelegs with one-segmented tarsus paired, articulated pretarsal claws;...
The western corn rootworm, Diabrotica virgifera LeConte, exhibits protandry. contribution of pre-hatch development to protandry in rootworm was previously investigated with a small set data from one population. To verify the protandry, more than 10,000 larvae seven wild-type populations collected across Corn Belt were evaluated. Larvae placed into containers on each day egg hatch for population and allowed develop adults. Duration these ranged 7 19 days percent insects surviving adulthood...
Abstract Along the Coastal Bend of Texas, rice stink bug, Oebalus pugnax (F.), is a major pest grain sorghum and that primarily managed by insecticide applications. Reports bug resistance to pyrethroids in Texas first surfaced 2015 continued spread. To determine status pyrethroid resistance, populations across Louisiana were evaluated from 2021 2023. Mortality was assessed through glass vial exposures eight concentrations (0, 0.03, 0.1, 0.3, 1, 3, 10, 30 μg/vial) pyrethroid,...
The northern corn rootworm, Diabrotica barberi Smith & Lawrence (Coleoptera: Chrysomelidae), is one of the most important insect pests in U.S. Corn Belt. Efforts to obtain eggs from wild rootworm populations using techniques developed for other species have been unsuccessful due lack oviposition. In 2016, we evaluated four oviposition media choice tests within each three female densities 30.5 × cm BugDorm cages. number laid per was significantly affected by density and interaction media, but...
Western, northern, Mexican, and southern corn rootworms (WCR, NCR, MCR, SCR) are serious pests. We evaluated host search behavior of these pests on six plant species using a video tracking system. After 5-min exposure to roots, behavioral parameters were automatically recorded used quantify the behavior. The was not observed for sorghum since no neonates survived after contacting roots. exposures all exhibited localized behaviors (i.e., shortening total distance traveled, lowering movement...
Halyomorpha halys (Stål) is an invasive pest in the United States and other countries. In its native range, H. eggs are parasitized by a co-evolved parasitoid, Trissolcus japonicus (Ashmead). States, T. japonicus, classical biological control candidate, being redistributed many states where adventive populations exist. To establish if egg holding conditions affect foraging behavior or successful parasitism, naïve, female parasitoids from population were allowed to forage laboratory bioassay...
Western corn rootworm, Diabrotica virgifera LeConte, became much easier to research with the development of a nondiapausing rootworm strain. In event that eggs cannot be used immediately researchers have been known delay egg hatch by storing at low temperatures. It is not well how this technique could affect or larval development, which alter results an experiment. To test for western were stored temperatures potential negative effects on and development. Eggs in either soil agar placed...