Spatial Distribution of Cereal Leaf Beetle (Oulema melanopus (L)) 1 Eggs and Larvae and Treatment of Count Data 2

1980 ◽  
Vol 9 (2) ◽  
pp. 186-189 ◽  
Author(s):  
Patrick A. Logan
Keyword(s):  
Spatial Distribution ◽  
Count Data ◽  
Leaf Beetle ◽  
Cereal Leaf Beetle ◽  
Oulema Melanopus ◽  
Eggs And Larvae

Distribution and Seasonal Phenology of Cereal Leaf Beetle (Coleoptera: Chrysomelidae) on Wheat in Tennessee

1993 ◽  
Vol 28 (4) ◽  
pp. 363-369 ◽  
Author(s):  
Jerome F. Grant ◽  
Charles R. Patrick
Keyword(s):  
Triticum Aestivum ◽  
Triticum Aestivum L ◽  
Leaf Beetle ◽  
The State ◽  
Economic Threshold ◽  
Seasonal Incidence ◽  
Cereal Leaf Beetle ◽  
Oulema Melanopus ◽  
Eggs And Larvae ◽  
Experimental Plots

A three-year study was conducted to assess the distribution and seasonal incidence of cereal leaf beetle, Oulema melanopus (L.), on wheat, Triticum aestivum L., in Tennessee. Cereal leaf beetle was distributed across the state with populations most frequently encountered in eastern and middle Tennessee. Cereal leaf beetle adults were active in wheat fields during late March to early April; eggs were found from late March to early May; and larvae were found from early April to early June, peaking during mid May. In our experimental plots, larval densities exceeded the suggested economic threshold during each year. F1 adults emerged from late May to late June and fed approximately 2 wks on corn and other available Graminae plants. Adult activity then ceased; adults, eggs, and larvae were not encountered again until the following March and April.

Fusarium infection in maize: Volatile induction of infected and neighboring uninfected plants has the potential to attract a pest cereal leaf beetle, Oulema melanopus

2011 ◽  
Vol 168 (13) ◽  
pp. 1534-1542 ◽  
Author(s):  
Dariusz Piesik ◽  
Grzegorz Lemńczyk ◽  
Agata Skoczek ◽  
Robert Lamparski ◽  
Jan Bocianowski ◽  
...  
Keyword(s):  
Leaf Beetle ◽  
Fusarium Infection ◽  
Cereal Leaf Beetle ◽  
Oulema Melanopus ◽  
Volatile Induction

scholarly journals Laboratory and field tests of predation on the cereal leaf beetle, Oulema melanopus (Coleoptera: Chrysomelidae)

2019 ◽  
Vol 29 (5) ◽  
pp. 451-465 ◽  
Author(s):  
Arash Kheirodin ◽  
Alejandro C. Costamagna ◽  
Héctor A. Cárcamo
Keyword(s):  
Field Tests ◽  
Leaf Beetle ◽  
Cereal Leaf Beetle ◽  
Oulema Melanopus

scholarly journals Consumption of cereal leaf beetle, Oulema melanopus , by generalist predators in wheat fields detected by molecular analysis

2019 ◽  
Vol 168 (1) ◽  
pp. 59-69 ◽  
Author(s):  
Arash Kheirodin ◽  
Barbara J. Sharanowski ◽  
Héctor A. Cárcamo ◽  
Alejandro C. Costamagna
Keyword(s):  
Molecular Analysis ◽  
Leaf Beetle ◽  
Generalist Predators ◽  
Cereal Leaf Beetle ◽  
Oulema Melanopus

POPULATION DYNAMICS OF THE CEREAL LEAF BEETLE, OULEMA MELANOPUS (COLEOPTERA: CHRYSOMELIDAE): A MODEL FOR AGE SPECIFIC MORTALITY

1972 ◽  
Vol 104 (6) ◽  
pp. 797-814 ◽  
Author(s):  
Robert G. Helgesen ◽  
Dean L. Haynes
Keyword(s):  
Pupal Stage ◽  
Leaf Beetle ◽  
Fourth Instar ◽  
Egg Survival ◽  
Density Dependent ◽  
Cereal Leaf Beetle ◽  
Density Dependent Mortality ◽  
Oulema Melanopus ◽  
First Instar ◽  
Dependent Mortality

AbstractThe cereal leaf beetle, Oulema melanopus (L.), has rapidly increased its numbers and range since it was discovered in Michigan in 1962. We have shown in this report that intraspecific density-dependent mortality is the major constraint on survivorship. We have attempted to quantify survival within a generation from the egg stage to the adult.Larval mortality varies among populations. Density-dependent mortality, caused by intraspecific competition, accounts for most of the variation of within-generation survival of the cereal leaf beetle in wheat and oats. Mortality in the first instar on oats and the fourth instar on wheat and oats is a linear function of the logarithm of total egg density. Establishment of the first instar on oats appears to become more difficult as density increases because leaf surface disturbance and interference with larger larva increases. Competition for food accounts for the increase in mortality of the fourth instar in both wheat and oats as density increases. Egg survival, survival of the first instar on wheat and in the second, third, and pupal stage in both crops are constants with respect to density. These constants can be expected to change with respect to other environmental parameters however, e.g. host variety, planting date, rainfall, etc.

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