Author: Ephriam Hixson
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 28
Book Description
Insects that Affect Alfalfa Seed Production in Nebraska
Author: Ephriam Hixson
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 28
Book Description
Insects Affecting Alfalfa Seed Production in Kansas
Author: Woodrow Wilson Franklin
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 64
Book Description
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 64
Book Description
Insects Affecting Alfalfa Seed Production in Kansas
Author: Woodrow Wilson Franklin
Publisher:
ISBN:
Category : Agricultural research
Languages : en
Pages : 76
Book Description
Publisher:
ISBN:
Category : Agricultural research
Languages : en
Pages : 76
Book Description
Insects Affecting Alfalfa Seed Production
Author: Norris E. Daniels
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 8
Book Description
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 8
Book Description
Insects in Relation to Alfalfa-seed Production
Author: Charles James Sorenson
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 36
Book Description
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 36
Book Description
Insect Control for Alfalfa Seed Production
Author: Roland W. Portman
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 8
Book Description
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 8
Book Description
Insect Pests of Alfalfa Seed Production and Their Control
Author: John A. Lofgren
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 11
Book Description
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 11
Book Description
Insects Associated with Alfalfa Seed Production
Monitoring Insect Diversity and Parasitism Levels in Alfalfa Seed Production Fields in Western Canada
Author: Michelle Reid (Student at University of Alberta)
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 0
Book Description
Alfalfa, Medicago sativa (L.) (Fabales: Fabaceae), is an excellent source of high protein feed for livestock. Canada is the second largest producer of alfalfa seed (4.2 M kg/year) in the world, with the vast majority of production concentrated in the province of Alberta. The productivity of these fields is threatened by an invasive insect, the alfalfa weevil, Hypera postica (Gyllenhal) (Coleoptera: Curculionidae) as well as a myriad of other potential insect pests. Recently, insecticide resistance was confirmed in several alfalfa weevil populations in Alberta, and few other management options exist. Many natural enemies of alfalfa insect pests are present in Alberta, including biological control agents of alfalfa weevil, Bathyplectes curculionis (Thomson) (Hymenoptera: Ichneumonidae) and Oomyzus incertus (Ratzeburg) (Hymenoptera: Eulophidae); however, the distribution of these species and their parasitism levels are currently unknown. Here, we assessed the current diversity and distribution of insects in alfalfa seed production fields, with special emphasis on parasitism levels of B. curculionis and O. incertus throughout southern Alberta. A survey was conducted to collect insects, including alfalfa weevil larvae, from seed production fields in 2020 and 2021. During this survey, insect collections were taken from fields at three crop stages: bud, flower and seed, these insects were sorted to guild (pest of alfalfa or natural enemy of pests) and identified to genus and species. In addition, alfalfa weevil larval samples were collected weekly from the end of May to the beginning of July to assess the activity period of these parasitoids, finding parasitism activity throughout the month of June and into July. Parasitism levels based on the multiplex PCR assay were comparable to live rearing and ranged from 0-90% across sites. Assessing when and where these parasitoids occur, as well has how the two guilds interact will allow growers to better utilize these biological control agents and, ultimately, reduce spray applications.
Publisher:
ISBN:
Category : Alfalfa
Languages : en
Pages : 0
Book Description
Alfalfa, Medicago sativa (L.) (Fabales: Fabaceae), is an excellent source of high protein feed for livestock. Canada is the second largest producer of alfalfa seed (4.2 M kg/year) in the world, with the vast majority of production concentrated in the province of Alberta. The productivity of these fields is threatened by an invasive insect, the alfalfa weevil, Hypera postica (Gyllenhal) (Coleoptera: Curculionidae) as well as a myriad of other potential insect pests. Recently, insecticide resistance was confirmed in several alfalfa weevil populations in Alberta, and few other management options exist. Many natural enemies of alfalfa insect pests are present in Alberta, including biological control agents of alfalfa weevil, Bathyplectes curculionis (Thomson) (Hymenoptera: Ichneumonidae) and Oomyzus incertus (Ratzeburg) (Hymenoptera: Eulophidae); however, the distribution of these species and their parasitism levels are currently unknown. Here, we assessed the current diversity and distribution of insects in alfalfa seed production fields, with special emphasis on parasitism levels of B. curculionis and O. incertus throughout southern Alberta. A survey was conducted to collect insects, including alfalfa weevil larvae, from seed production fields in 2020 and 2021. During this survey, insect collections were taken from fields at three crop stages: bud, flower and seed, these insects were sorted to guild (pest of alfalfa or natural enemy of pests) and identified to genus and species. In addition, alfalfa weevil larval samples were collected weekly from the end of May to the beginning of July to assess the activity period of these parasitoids, finding parasitism activity throughout the month of June and into July. Parasitism levels based on the multiplex PCR assay were comparable to live rearing and ranged from 0-90% across sites. Assessing when and where these parasitoids occur, as well has how the two guilds interact will allow growers to better utilize these biological control agents and, ultimately, reduce spray applications.
Stink Bugs of Economic Importance in America North of Mexico
Author: J. E. McPherson
Publisher: CRC Press
ISBN: 1420042424
Category : Science
Languages : en
Pages : 271
Book Description
Many scientists have reported an extensive amount of information on the biology, life history, and damage potential of stink bugs. However, this information is scattered among numerous journals, periodicals, and other publications. Stink Bugs of Economic Importance in America North of Mexico brings together the applied and nonapplied literature in
Publisher: CRC Press
ISBN: 1420042424
Category : Science
Languages : en
Pages : 271
Book Description
Many scientists have reported an extensive amount of information on the biology, life history, and damage potential of stink bugs. However, this information is scattered among numerous journals, periodicals, and other publications. Stink Bugs of Economic Importance in America North of Mexico brings together the applied and nonapplied literature in