- Biological Control of Invasive Species
- Allelopathy and phytotoxic interactions
- Weed Control and Herbicide Applications
- Botany, Ecology, and Taxonomy Studies
- Chemical synthesis and alkaloids
- Forest Insect Ecology and Management
- Ecology and Vegetation Dynamics Studies
- Plant Parasitism and Resistance
- Insect-Plant Interactions and Control
- Plant and animal studies
- Botanical Research and Chemistry
- Plant Toxicity and Pharmacological Properties
- Essential Oils and Antimicrobial Activity
- Aquatic Ecosystems and Phytoplankton Dynamics
- Sesquiterpenes and Asteraceae Studies
- Plant Diversity and Evolution
- Botany and Plant Ecology Studies
- Phytoplasmas and Hemiptera pathogens
- Ecology and Conservation Studies
- Insect behavior and control techniques
- Plant Pathogenic Bacteria Studies
- Plant Taxonomy and Phylogenetics
- Medicinal Plants and Neuroprotection
- Coleoptera Taxonomy and Distribution
- Phytochemistry and Bioactive Compounds
Emissions Reduction Alberta
2010-2012
Entomological Society of Canada
2012
Alberta Environment and Protected Areas
1989-2004
Alberta Energy
1999
Agriculture Food and Rural Development
1995
Agriculture and Agri-Food Canada
1995
Lethbridge Research and Development Centre
1995
University of Saskatchewan
1991
Environmental Development Centre
1991
Tecnológico de Monterrey
1983-1987
More than 1180 non-native species, mostly of Palaearctic origin, have been recorded from the boreal zone Canada, with highest diversity on island Newfoundland and in southern Ontario Quebec. The biota (and Canada general) is poorly known terms species composition distribution. A large proportion are associated disturbed anthropogenic habitats such as urban areas, agricultural landscapes, transportation communication corridors, industrial developments. Natural a high degree resistance to...
Controversy exists over estimation of ecological risk in biological control. At present, the to rare, federally listed Pitcher's thistle (Cirsium pitcheri) North America from Rhinocyllus conicus, a control weevil now feeding on many native thistles, is unknown. We hypothesized that quantification host specificity and potential phenological overlap between insect plant would improve assessment magnitude risk. In laboratory tests, we found no significant difference R. conicus or oviposition...
Journal Article Phytophagous Arthropods Associated with Parthenium hysterophorus (Asteraceae) in North America Get access A. S. McClay, McClay Alberta Environmental Centre, Bag 4000, Vegreville, AB T9C 1T4 Canada Search for other works by this author on: Oxford Academic PubMed Google Scholar W. Palmer, Palmer 1 Tropical Weeds Research P.O. Box 187, Charters Towers, Queensland 4820, Australia. F. D. Bennett, Bennett 2 Department of Entomology and Nematology, University Florida, Gainesville FL...
Scentless chamomile, Matricaria perforata Mérat, (=M. maritima var. agrestis (Knaf) Wilmott), is an introduced weed having annual to short-lived perennial life cycle. Two cytotype races are found in Canada with a distinctive geographic distribution. The tetraploid (2n = 36) abundant agricultural habitats of the Prairie region, whereas diploid 18) mainly ruderal Atlantic region. Infestations many and crops, pastures, wasteland, lawns, gardens, roadsides, fence lines, ditches. plant reproduces...
Leucanthemum vulgare Lam. (Asteraceae), known as ox-eye daisy, is a familiar perennial herb with white ray florets and yellow disc florets. It commonly inhabits roadside ver ges, pastures old fields from Newfoundland to British Columbia, also far north the Yukon Territory. Introduced Europe, L. was well established in North America by 1800. The Canadian distribution of has expanded many areas recently, particularly western Canada. can form dense populations that may reduce diversity natural...
Abstract: Classical biological control of insect pests and weeds may lead to potential conflicts, where are closely related weed agents. Such a conflict occur in the classical cabbage seedpod weevil, Ceutorhynchus obstrictus (Marsham) North America, which belongs same subfamily, Ceutorhynchinae, as number agents introduced or proposed for introduction against non‐indigenous invasive species. We propose step‐by‐step procedure select non‐target species thereby develop test list screening...
Abstract Linaria vulgaris , common or yellow toadflax, and dalmatica Dalmatian toadflax ( Plantaginaceae ), are Eurasian perennial forbs invasive throughout temperate North America. These species have been the targets of classical biological control programmes in Canada USA since 1960s. The first effective agent, stem‐mining weevil Mecinus janthinus Coleoptera : Curculionidae ) was introduced from Europe 1990s. This has become established on L. both countries, although it shown greater...
A number of invasive plant management strategies, including competition, fertilizer, herbicide, combination fertilizer and biological control, mowing, grazing management, prevention, eradication education have been investigated employed in Alberta. The integrated weed (IWM) strategies are overlapping, interconnected based on ecological principles. Research several species, ox-eye daisy (Leucanthemum vulgare Lam.), scentless chamomile [Tripleurospermum perforatum (Mérat) Laínz] white cockle...
Abstract A European gall mite, Aceria malherbae Nuzzaci, was released and established in southern Alberta Montana as a biological control agent for field bindweed, Convolvulus arvensis L. (Convolvulaceae). Populations of the mite survived up to 4 years at some sites caused slight severe damage weed. The establishment . these areas suggests that it could be throughout North American range bindweed.
Abstract: Galium spurium L. (Rubiaceae), native to Europe, is an increasingly serious annual weed of cultivated crops in the prairie provinces Canada. The gall mite Cecidophyes rouhollahi Craemer (Acari, Eriophyidae), originally found on related plant species aparine southern France, was evaluated as a potential biological control agent for G. . In greenhouse tests, C. caused severe stunting and complete prevention seed production by Host specificity tests showed that developed only three...