Author: S. H. Gage
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 398
Book Description
Ecological Investigations on the Cereal Leaf Beetle, Oulema Melanopus (L.), and the Principal Larval Parasite, Tetrastichus Julis (Walker)
Author: S. H. Gage
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 398
Book Description
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 398
Book Description
The Environmental Regulation of Host-parasite Synchrony Between the Cereal Leaf Beetle, Oulema Melanopus (L.) (Coleoptera: Chrysomelidae) and Its Parasite, Tetrastichus Julis (Walker) (Hymenoptera: Eulophidae)
Author: James Robert Nechols
Publisher:
ISBN:
Category : Diapause
Languages : en
Pages : 200
Book Description
Publisher:
ISBN:
Category : Diapause
Languages : en
Pages : 200
Book Description
A Quantitative Description of Oat Growth with Cereal Leaf Beetle Populations
Author: John Alfred Jackman
Publisher:
ISBN:
Category : Oats
Languages : en
Pages : 378
Book Description
Publisher:
ISBN:
Category : Oats
Languages : en
Pages : 378
Book Description
Sustainable Management of the Cereal Leaf Beetle, Oulema Melanopus (Coleoptera
Author: Swaroop V. Kher
Publisher:
ISBN:
Category : Grain
Languages : en
Pages : 304
Book Description
The cereal leaf beetle, Oulema melanopus (L.) (Coleoptera: Chrysomelidae) is a new invasive insect pest of cereals in western Canada, and has expanded its geographic range significantly throughout the region. Its establishment has economic implications for grain production, trade and export. Biological control with its principal larval parasitoid, Tetrastichus julis (Walker) (Hymenoptera: Eulophidae), introduced from Europe has been the most successful management strategy in North America. In southern Alberta, the parasitoid has established naturally along with the beetle and provides an opportunity for integration of biological control with other management tactics. My investigation focused on tritrophic interactions between the cereal host plants, O. melanopus and T. julis. I investigated life histories and host preferences of O. melanopus and T. julis, their spatio-temporal distribution dynamics, and explored host-plant resistance mechanisms in exotic wheat genotypes to discern interrelations between these species. My studies on developmental patterns of O. melanopus on potential cereal hosts in western Canada (oat, wheat, barley, corn, rye and triticale) indicated that the preferences for these hosts and their utilization differed within the fundamental host range of O. melanopus. Prolonged developmental times and low survivorship on a local cultivar of oat, Waldern, indicated a potential avenue for designing strategies such as trap cropping. My studies on the biology of T. julis indicated that T. julis females prefer advanced larval instars for parasitization; such a selection lead to higher clutch size, and improved fitness. Under field conditions, the relationship of O. melanopus and T. julis indicated a tightly coupled host-natural enemy system. Tetrastichus julis exhibited strong density dependence. Host plant characteristics influenced field dynamics of O. melanopus which in turn influenced T. julis distribution. Three of the six central Asian wheat genotypes tested (NN-100, NN-78 and NN-27) were less attractive for O. melanopus oviposition and feeding and further trials on biology and fitness of the beetle suggested prolonged development and low fitness on these genotypes. This indicated presence of both antixenosis and antibiosis mechanisms. The resistant lines identified can act as effective genotypes for breeding explorations in North America.
Publisher:
ISBN:
Category : Grain
Languages : en
Pages : 304
Book Description
The cereal leaf beetle, Oulema melanopus (L.) (Coleoptera: Chrysomelidae) is a new invasive insect pest of cereals in western Canada, and has expanded its geographic range significantly throughout the region. Its establishment has economic implications for grain production, trade and export. Biological control with its principal larval parasitoid, Tetrastichus julis (Walker) (Hymenoptera: Eulophidae), introduced from Europe has been the most successful management strategy in North America. In southern Alberta, the parasitoid has established naturally along with the beetle and provides an opportunity for integration of biological control with other management tactics. My investigation focused on tritrophic interactions between the cereal host plants, O. melanopus and T. julis. I investigated life histories and host preferences of O. melanopus and T. julis, their spatio-temporal distribution dynamics, and explored host-plant resistance mechanisms in exotic wheat genotypes to discern interrelations between these species. My studies on developmental patterns of O. melanopus on potential cereal hosts in western Canada (oat, wheat, barley, corn, rye and triticale) indicated that the preferences for these hosts and their utilization differed within the fundamental host range of O. melanopus. Prolonged developmental times and low survivorship on a local cultivar of oat, Waldern, indicated a potential avenue for designing strategies such as trap cropping. My studies on the biology of T. julis indicated that T. julis females prefer advanced larval instars for parasitization; such a selection lead to higher clutch size, and improved fitness. Under field conditions, the relationship of O. melanopus and T. julis indicated a tightly coupled host-natural enemy system. Tetrastichus julis exhibited strong density dependence. Host plant characteristics influenced field dynamics of O. melanopus which in turn influenced T. julis distribution. Three of the six central Asian wheat genotypes tested (NN-100, NN-78 and NN-27) were less attractive for O. melanopus oviposition and feeding and further trials on biology and fitness of the beetle suggested prolonged development and low fitness on these genotypes. This indicated presence of both antixenosis and antibiosis mechanisms. The resistant lines identified can act as effective genotypes for breeding explorations in North America.
Annals of the Entomological Society of America
Author:
Publisher:
ISBN:
Category : Entomology
Languages : en
Pages : 1060
Book Description
Publisher:
ISBN:
Category : Entomology
Languages : en
Pages : 1060
Book Description
Agricultural programs
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Agriculture and Related Agencies
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1202
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1202
Book Description
The Bionomics and Interactions of the Parasitoid, Diaeretiella Rapae (M'Intosh) (Hymenoptera: Braconidae), and the European Asparagus Aphid, Brachycolus Asparagi Mordvilko (Homoptera: Aphididae)
Author: Dana Lynn Hayakawa
Publisher:
ISBN:
Category : Aphids
Languages : en
Pages : 288
Book Description
Publisher:
ISBN:
Category : Aphids
Languages : en
Pages : 288
Book Description
Endemic Ecology of the Cereal Leaf Beetle
Author: Emmett Philip Lampert
Publisher:
ISBN:
Category : Beetles
Languages : en
Pages : 468
Book Description
Publisher:
ISBN:
Category : Beetles
Languages : en
Pages : 468
Book Description
Agriculture and related agencies appropriations for 1978
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Agriculture and Related Agencies
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1188
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1188
Book Description
Agriculture and Related Agencies Appropriations Bill ...
Author: United States. Congress. House. Committee on Appropriations
Publisher:
ISBN:
Category :
Languages : en
Pages : 1200
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 1200
Book Description