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The Biology And The Chemical And Cultural Control Of Canada Thistle Cirsium Arvense
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Author :Alberta. Department of Agriculture. Weed Control and Field Services Branch Publisher :Weed Control and Field Services Branch ISBN 13 : Total Pages :97 pages Book Rating :4.:/5 (814 download)
Book Synopsis The Biology, and the Chemical and Cultural Control of Canada Thistle (Cirsium Arvense) by : Alberta. Department of Agriculture. Weed Control and Field Services Branch
Download or read book The Biology, and the Chemical and Cultural Control of Canada Thistle (Cirsium Arvense) written by Alberta. Department of Agriculture. Weed Control and Field Services Branch and published by Weed Control and Field Services Branch. This book was released on 1980 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Nature, Ecology, and Control of Canada Thistle by : Jesse M. Hodgson
Download or read book The Nature, Ecology, and Control of Canada Thistle written by Jesse M. Hodgson and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Canada Thistle and Its Control by : Jesse M. Hodgson
Download or read book Canada Thistle and Its Control written by Jesse M. Hodgson and published by . This book was released on 1977 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Comparison of Cultivation and Chemical Control of Canada Thistle (Cirsium Arvense (L.) Scop.) by : Menzies James G.
Download or read book A Comparison of Cultivation and Chemical Control of Canada Thistle (Cirsium Arvense (L.) Scop.) written by Menzies James G. and published by . This book was released on 1978 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Control of Canada Thistle (Cirsium Arvense (L.) Scop.) in Creeping Red Fescue and Timothy Seed Crops by : Albert Gallagher
Download or read book Chemical Control of Canada Thistle (Cirsium Arvense (L.) Scop.) in Creeping Red Fescue and Timothy Seed Crops written by Albert Gallagher and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field experiments throughout Northern Alberta established picloram (4-amino-3,5,6-trichloropicolinic acid) as an excellent herbicide for the control of Canada thistle ( Cirsium arvense (L.) Scop.). Rates of 8 to 12 oz/A were sufficient to consistently reduce thistle stands under all conditions. Preplant herbicide treatments were tolerated by creeping red fescue ( Festuca rubra L.) and timothy ( Phleum pratense L.) if one growing season elapsed between treatments and planting of the grasses. Seeding of the grasses three weeks following herbicide application resulted in reduced grass stands and dry matter production in several instances. Seedling stands of creeping red fescue treated at the 1- to 5-tiller stage grew and developed better where thistle control was provided by single applications of picloram at 4,8, and 12 oz/A or dicamba at 24 oz/A. Fertile tiller production was increased substantially in plants selected from plots treated in the field with 4 and 12 oz/A of picloram at the 3- to 5-tiller stage, and transferred to a growth chamber. Seed production of timothy was not affected by 2 to 12 oz/A of picloram when applied at several growth stages. Dicamba and 2,4-D treatments were tolerated best at the post-flowering stage of growth. Creeping red fescue seed production was reduced by most herbicide treatments applied at 10 per cent anthesis in 1969. Plants receiving 8 and 12 oz/A of picloram in 1969 were prostrate and seed head numbers were reduced in 1970. In no instance did herbicide treatment result in more than a 9.4 per cent reduction in percentage germination of the seed from either grass species when compared to the untreated check. Dicamba applied on timothy two weeks after the peak flowering period did not significantly reduce the seed germination but seedlings produced were prostrate and bent. Picloram at 2 oz/A had no effect on seed germination irrespective of the growth stage of the plants at treatment time. In greenhouse experiments with picloram and dicamba-treated soil, creeping red fescue germinated and emerged more readily than did timothy. Surviving timothy plants grew and developed more readily, however, than did creeping red fescue plants. Dissipation of dicamba under field conditions was complete by the end of one growing season. Picloram soil residues which were phytotoxic to cucumbers were detected at all locations and at most rates of application after more than one growing season had elapsed. Dissipation of picloram was greatest at the St. Albert plot and this was attributed to the high organic matter content of the soil. The use of picloram or dicamba for thistle control in grass seed fields is feasible. Picloram applied to actively growing thistles in the bud stage on a spot application basis and prior to seeding at rates of 4 to 8 oz/A followed three to four weeks later by intensive cultivation is recommended. Thistle regrowth can be treated when seedling grasses are past the three to four-leaf stage with a mixture of 4 oz/A of dicamba and 8 oz/A of MCPA amine or 2,4-D amine.
Book Synopsis Biological Control of Canada Thistle (Cirsium Arvense) in Southwestern Nebraska by : Meghan Faye Dinkins
Download or read book Biological Control of Canada Thistle (Cirsium Arvense) in Southwestern Nebraska written by Meghan Faye Dinkins and published by . This book was released on 2005 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vegetative Reproduction and the Integrated Management of Canada Thistle by : Joanna Katarzyna Sciegienka
Download or read book Vegetative Reproduction and the Integrated Management of Canada Thistle written by Joanna Katarzyna Sciegienka and published by . This book was released on 2009 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Canada thistle (Cirsium arvense (L.) Scop.) is an aggressive, introduced creeping perennial weed that flourishes in a wide variety of environments. Its deep, creeping root system and colony forming tendencies make it one of the most difficult weeds to control. A strategy that incorporates a better understanding of the biology of Canada thistle into the development of an integrated management plan that includes herbicides and biological control could help reduce the dispersal and impact of this species. The objectives of this work were to: 1) determine how Canada thistle emergence and growth are affected by changes in root size, biomass, burial depth, and soil moisture and 2) compare single and joint impacts of herbicides and biological control agents on Canada thistle growth. Objective 1 was carried out in a greenhouse and in field conditions. To monitor Canada thistle emergence and growth responses, a completely randomized factorial design was used in the greenhouse, and a randomized complete block design was used in the field. Models were developed to predict emergence and growth patterns based on available water, burial depth, and various root metrics. For the exception of available water, the same predictors were used in field conditions to predict Canada thistle emergence and growth. The variables that were manipulated were able to significantly predict the responses measured, and we concluded that available water, root burial depth, and root weight, length, diameter, and volume are indicators of emergence likelihood, emergence time, shoot and root growth, and shoot number. Objective 2 was carried out in greenhouses and field settings. Three herbicides were evaluated with and without insects to determine reduction in Canada thistle root and shoot biomass in the greenhouse. One herbicide was also used at a low rate and evaluated singly and in combination with a stem-boring weevil (Hadroplontus litura (F.)) and a pathogen (Pseudomonas syringae pv. tagetis) to determine effect on Canada thistle response in the greenhouse and field. We failed to reject our null hypothesis of additivity between control agents, and concluded that integrating individual control methods yields greater Canada thistle control than any singular method.
Book Synopsis Post-release Assessment of Classical Biological Control of Canada Thistle (cirsium Arvense) in the Western United States by : Joel R. Price
Download or read book Post-release Assessment of Classical Biological Control of Canada Thistle (cirsium Arvense) in the Western United States written by Joel R. Price and published by . This book was released on 2014 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Classical biological control of weeds has been used almost 50 years to control Cirsium arvense (Canada thistle) in the United States. However, few field studies have assessed the efficacy of approved biological control agents, a stem-galling fly Urophora cardui and stem-mining weevil Hadroplontus litura. We reviewed literature on C. arvense control, and between 2008 and 2012, monitored release transects of U. cardui, H. litura, both species, or no insects released at C. arvense infestations across the western United States. At each study transect (n = 87), we measured U. cardui parasitism pressure, biological control agent establishment and abundance, vegetation cover, C. arvense density, and abiotic variables; each as potential factors in inter-annual C. arvense density fluctuation. We found that U. cardui galls are attacked by five parasitoid species at low rates and that C. arvense infestations are negatively affected by perennial grass competition and not by biological control agent herbivory.
Book Synopsis Cultural and Chemical Control of Canada Thistle and Perennial Sow Thistle by : W. A. Stearman
Download or read book Cultural and Chemical Control of Canada Thistle and Perennial Sow Thistle written by W. A. Stearman and published by . This book was released on 1974 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies with Puccinia Obtegens for Biological Control of Canada Thistle (Cirsium Arvense) by : Sherry Kay Turner
Download or read book Studies with Puccinia Obtegens for Biological Control of Canada Thistle (Cirsium Arvense) written by Sherry Kay Turner and published by . This book was released on 1981 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cultural and Chemical Control of Canada Thistle and Perennial Sow-thistle by :
Download or read book Cultural and Chemical Control of Canada Thistle and Perennial Sow-thistle written by and published by . This book was released on 1977 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stress Physiology and Biological Weed Control by : Sheila Florence Forsyth
Download or read book Stress Physiology and Biological Weed Control written by Sheila Florence Forsyth and published by . This book was released on 1983 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The success of biological weed control programs has been limited by a lack of understanding of the stress physiology of insect damage and pathogen development. This case study with the perennial weed, Cirsium arvense, (L.) Scop. evaluated the stress of five natural enemies. Attack by a seed head predator, Orellia ruficauda (F.) caused about 21.5% predation and may reduce seed dispersal. The stress of stem gall formation (Urophora cardui (L.)) is greatest when the gall occurs on young plants and on the mainshoot and defoliation simulation (Cassida rubiginosa Muller) is most effective at high levels on young plants. In nature, however, the latter two natural enemies are not synchronized with these susceptible stages, thereby reducing their effectiveness. Although Cleonus piger Scop., a root crown inhabitant, can result in plant death, regeneration of damaged vascular tissue can occur. Plants which emerge systemically infected with Puccinia punctiformis (Str.) Rohl. (rust) rarely survive the season. A matrix model simulating the effects on Canada thistle population dynamics by the natural enemies was applied." --
Download or read book Thistles written by and published by . This book was released on 1984 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Weeds of California and Other Western States by : Joseph M. DiTomaso
Download or read book Weeds of California and Other Western States written by Joseph M. DiTomaso and published by UCANR Publications. This book was released on 2007 with total page 979 pages. Available in PDF, EPUB and Kindle. Book excerpt: This encyclopedic yet easy-to-use 2-volume set covers 262 individual entries, including a full description of 451 species and another 361 plants compared as similar species, representing 63 plant families. 13 shortcut identification tables for groups that share similar, unusual, or relatively uncommon characteristics. 2 grass identification keys - a key to all characteristics including inflorescences and reproductive parts and a key to vegetative characteristics only. 67 tables comparing important characteristics of difficult-to-distinguish weedy species. Color photos of over 700 weeds including seeds, seedlings, flowers, and mature plants. Appendix of non-native plants rarely or occasionally naturalized in California. Glossary of botanical terms. Bibliography of some of the most pertinent publications. Index to common names, scientific names, and synonyms. Each entry describes the plant category, family name, common name, and synonyms along with a summary of the important aspects of the plant’s life cycle, size, growth form, impact, method of introduction, and toxicity. You'll also find a description of the seedling, mature plant, roots and underground structures, flowers, fruits and seeds, spikelets and florets, spore-bearing structures, and post senescence characteristics for each entry. Also includes a description of the habitat where each is typically found and distribution in California, other states, and worldwide, along with maximum elevation at which the species is found. Rounding out each entry is a description of the methods of reproduction, seed dispersal, germination requirements and conditions, seed survival and longevity, early establishment characteristics and requirements, cultural practices and management options that have proven effective or ineffective in controlling infestations, and a notation of the species' inclusion on federal or state noxious weed lists.
Book Synopsis Field Guide for the Biological Control of Weeds in the Northwest by : Rachel Winston
Download or read book Field Guide for the Biological Control of Weeds in the Northwest written by Rachel Winston and published by Government Printing Office. This book was released on 2017-12-13 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide focuses on the most problematic weeds in eastern North America for which there are at least some biocontrol agents established and/or available. Multiple photos and descriptions of each weed included in this guide emphasize key identification traits and plant ecology. For each weed included in this guide, all biocontrol agents released or currently found in North America are described individually. Photos highlighting key identification features and damage are included. The release history, current status, and recommended use of each biocontrol agent are described in detail. Recommendations and current impact often vary between the US and Canada, therefore, the information is presented separately. Includes international code of best practices for classical biological control of weeds.
Book Synopsis The Biology of Weeds by : British Ecological Society
Download or read book The Biology of Weeds written by British Ecological Society and published by . This book was released on 1960 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Weeds of the West by : Robert Parker
Download or read book Weeds of the West written by Robert Parker and published by . This book was released on 1998-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learning to identify unwanted plants around the home, farm, or ranch will be much easier with this comprehensive publication. It will help you identify plants that compete with native plants, horticultural, & agricultural crops as well as those that can poison livestock & people. This easy-to-use guide contains more than 900 full-color photos showing the early growth stages, mature plants, & features for positive identification of each weed discussed. Descriptions, habitats, & characteristics of each plant are also included. Glossary. Key to plant families. References. Index.
