A5017741670- Plant and animal studies
- Insect and Pesticide Research
- Insect and Arachnid Ecology and Behavior
- Insect-Plant Interactions and Control
- Pomegranate: compositions and health benefits
- Ruminant Nutrition and Digestive Physiology
- Phytochemicals and Antioxidant Activities
- Antioxidant Activity and Oxidative Stress
- Pesticide Residue Analysis and Safety
- Helminth infection and control
- Food Quality and Safety Studies
- Animal Nutrition and Physiology
- Phytase and its Applications
- Bee Products Chemical Analysis
- Parasitic Infections and Diagnostics
- Botanical Research and Chemistry
- Healthcare and Venom Research
- Cynara cardunculus studies
- Radiomics and Machine Learning in Medical Imaging
- Plant and fungal interactions
- Plant Toxicity and Pharmacological Properties
- Botany and Plant Ecology Studies
- Coccidia and coccidiosis research
- Bryophyte Studies and Records
- Lichen and fungal ecology
Cornell University
2019-2024
New York State College of Agriculture & Life Sciences
2023
University of Turku
2015-2018
Université Européenne de Bretagne
2013
Condensed tannins (CTs) account for up to 20% of the dry matter in forage legumes used as ruminant feeds. Beneficial animal responses CTs have included improved growth, milk and wool production, fertility, reduced methane emissions ammonia volatilization from dung or urine. Most important is ability such forages combat effects gastrointestinal parasitic nematodes. Inconsistent were initially attributed concentration diet, but recent research has highlighted importance their molecular...
The use of synthetic drugs against gastrointestinal nematodes ruminants has led to a situation where resistance anthelmintics is widespread, and there an urgent need for alternative solutions parasite control. One promising approach polyphenol-rich bioactive plants in animal feeds as natural anthelmintics. In the present work, vitro activity series 33 hydrolyzable tannins (HTs) their hydrolysis product, gallic acid, egg hatching motility L1 L2 stage Haemonchus contortus larvae was studied....
Proanthocyanidins (PAs) in sainfoin (Onobrychis viciifolia Scop.) are of interest to ameliorate the sustainability livestock production. However, forage yield and PA concentrations, as well their composition, require optimization. Individual plants 27 accessions from four continents were analyzed with LC-ESI-QqQ-MS/MS for concentrations simple phenolic compounds. Large variability existed (23.0-47.5 mg g(-1) leaf dry matter (DM)), share prodelphinidins (79-96%), mean degree polymerization...
Abstract Bees are critical for crop pollination, but there is limited information on levels and sources of pesticide exposure in commercial agriculture. We collected pollen from foraging honey bees bumble returning to colonies placed blooming blueberry fields with different management approaches (conventional, organic, unmanaged) located across landscape settings determine how these factors affect exposure. also identified the analyzed whether was correlated corbicular load composition....
When managed bee colonies are brought to farms for crop pollination, they can be exposed pesticide residues. Quantifying the risk posed by these exposures indicate which pesticides of greatest concern and helps focus efforts reduce most harmful exposures. To estimate from bees while pollinating blueberry fields, we sampled flowers, foraging bees, pollen collected returning honey bumble foragers at colonies, wax hives in blooming southwest Michigan. We screened samples 261 active ingredients...
Exposure to pesticides is a major threat bumblebee (Bombus spp.) health. In temperate regions, queens of many species hibernate underground for several months, putting them at potentially high risk exposure soil contaminants. The extent which bumblebees are exposed residues in agricultural soils during hibernation currently unknown, limits our understanding the full pesticide exposome throughout their lifecycle. To generate field estimates overwintering residues, we sampled from areas...
Monarch butterflies (Danaus plexippus) are in decline the western United States and encountering a range of anthropogenic stressors. Pesticides among factors that likely contribute to this decline, though concentrations these chemicals non-crop plants is not well documented, especially complex landscapes with diversity crop types land uses. In study, we collected 227 milkweed (Asclepias spp.) leaf samples from 19 sites representing different use across Central Valley California. We also...
Abstract Agricultural intensification has been identified as one of the key causes global insect biodiversity losses. These losses have further linked to widespread use agrochemicals associated with modern agricultural practices. Many these chemicals are known negative sublethal effects on commercial pollinators, such managed honeybees and bumblebees, but less is about impacts wild bees. Laboratory‐based studies pollinators consistently shown that pesticide exposure can impact bee behavior,...
Abstract Honey bees are commonly co-exposed to pesticides during crop pollination, including the fungicide captan and neonicotinoid insecticide thiamethoxam. We assessed impact of exposure these two individually in combination, at a range field-realistic doses. In laboratory assays, mortality larvae treated with was 80–90% greater than controls, dose-independent, similar from lowest dose There evidence synergism (i.e., non-additive response) captan-thiamethoxam co-exposure highest...
Abstract Most pesticide research has focussed on risk to managed honeybees, but other and wild bees are also exposed pesticides. Critically, we know little about the magnitude sources of honeybees compared with during crop pollination. To compare exposure across bees, sampled main bee groups present bloom in 20 apple orchards, including ( Apis mellifera ), bumblebee workers Bombus impatiens mining Andrena spp. [Melandrena] spp.), foundress queens ) eastern carpenter Xylocopa virginica ). We...
The New York State (NYS) beekeeping industry generated >$11M worth of honey in 2020 and >$300M pollination services to agriculture annually. Bees are frequently exposed pesticides through foraging husbandry practices. Lipophilic can remain beeswax for extended periods. We analyzed wax comb samples collected from NYS apiaries at the end growing season, comparing residue numbers concentrations among beekeepers different operation scales: commercial (>300 colonies), sideliners (50-299 hobbyists...
Abstract Monarch butterflies ( Danaus plexippus ) are in decline the western United States and encountering a range of anthropogenic stressors. Pesticides among factors that likely contribute to this decline, though concentrations these chemicals non-crop plants is not well documented, especially complex landscapes with diversity crop types land uses. In study, we collected 227 milkweed Asclepias spp.) leaf samples from 19 sites representing different use across Central Valley California. We...
<title>Abstract</title> Honey bees are commonly co-exposed to pesticides during crop pollination, including the fungicide captan and neonicotinoid insecticide thiamethoxam. We assessed impact of exposure these two individually in combination, at a range field-realistic doses. In laboratory assays, mortality larvae/pupae treated with was 80–90% greater than controls, dose-independent, similar from lowest dose There evidence synergism (i.e., non-additive response) captan-thiamethoxam...
The use of synthetic drugs against gastrointestinal nematodes ruminants has led to a situation where resistance anthelmintics is widespread and there an urgent need for alternative solutions parasite control. One promising approach polyphenol-rich bioactive plants in animal feeds as natural [1]. In the present work, vitro activity series 33 hydrolyzable tannins (HTs) their hydrolysis product, gallic acid, egg hatching motility L1 L2 stage Haemonchus contortus larvae was studied [2]. effect...
Methane from enteric fermentation is a natural by-product of the digestive processes ruminants which represents loss 2 to 12% animal's groß energy intake [1]. Plant secondary metabolites and tannins in particular, have shown some promising results as dietary inhibitors methanogenesis. However, structure-activity relationships that underlie mechanisms action rumen remain mostly unkown. In this study, we investigated effect degree oligomerization ellagitannins (ET) on their ability alter...
Abstract Exposure to pesticides is a major threat bumblebee ( Bombus spp.) health. In temperate regions, queens of many species hibernate underground for several months, putting them at potentially high risk exposure soil contaminants. The extent which bumblebees are exposed residues in agricultural soils during hibernation currently unknown, limits our understanding the full pesticide exposome throughout their lifecycle. To generate field estimates overwintering residues, we sampled from...