Author: Patrick A. Logan
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 442
Book Description
Development of Improved Density Estimators for Larvae of the Cereal Leaf Beetle, Oulema Melanopus (L.)
Author: Patrick A. Logan
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 442
Book Description
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 442
Book Description
Development of a Model for On-line Control of the Cereal Leaf Beetle (Oul̲̲e̲ma̲ ̲m̲el̲̲a̲n̲o̲pu̲s̲ ̲(̲L.))
Author: Winston Cordell Fulton
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 292
Book Description
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 292
Book Description
The Within-generation Population Dynamics of the Cereal Leaf Beetle, Oulema Melanopus (L.)
Author: Robert Gordon Helgesen
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 220
Book Description
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 220
Book Description
Sweepnet Determination of Population Densities of the Cereal Leaf Beetle, Oulema Melanopus (L.)
Author: William Gust Ruesink
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 132
Book Description
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 132
Book Description
The Integration of Adult Survival and Dispersal Into a Mathematical Model for the Abundance of the Cereal Leaf Beetle, Oulema Melanopus (L.)
Author: William Gust Ruesink
Publisher:
ISBN:
Category : Insect populations
Languages : en
Pages : 198
Book Description
Publisher:
ISBN:
Category : Insect populations
Languages : en
Pages : 198
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 Cereal Leaf Beetle, Oulema Melanopus (L.) and Its Interaction with Two Primary Hosts
Author: S. H. Gage
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 248
Book Description
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 248
Book Description
Behavior and Survival of the Adult Cereal Leaf Beetle, Oulema Melanopus (L.)
Author: Richard Alfred Casagrande
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 388
Book Description
Publisher:
ISBN:
Category : Oulema melanopa
Languages : en
Pages : 388
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.
A Model for the Distribution and Abundance of the Cereal Leaf Beetle in a Regional Crop System
Author: Alan J. Sawyer
Publisher:
ISBN:
Category : Field crops
Languages : en
Pages : 622
Book Description
Publisher:
ISBN:
Category : Field crops
Languages : en
Pages : 622
Book Description