Author: Odidika Christian UmeozorPublisher:
ISBN:
Category :
Languages : en
Pages : 98
Book Description
Effects of Second Generation European Corn Borer, Ostrinia Nubilalis (hübner) on Grain Yield of Corn, Zea Mays (L.), in Eastern North Carolina
Author: Odidika Christian UmeozorPublisher:
ISBN:
Category :
Languages : en
Pages : 98
Book Description
The Effects of European Corn Borer [Ostrinia Nubilalis (L.) Hubner] and a Stalk Rot Pathogen Complex on Yield and Stalk Quality of Maize (Zea Mays L.) Grown Under Intensive Management
![The Effects of European Corn Borer [Ostrinia Nubilalis (L.) Hubner] and a Stalk Rot Pathogen Complex on Yield and Stalk Quality of Maize (Zea Mays L.) Grown Under Intensive Management PDF](https://books.google.com/books/content/images/frontcover/pq5LOAAACAAJ?fife=w80-h100)
Author: Frederick Wright SmithPublisher:
ISBN:
Category :
Languages : en
Pages : 178
Book Description
Detection of Adult Activity and Prediction of Larval Damage of Second Generation European Corn Borer, Ostrinia Nubilalis Hubner, in Field Corn (Zea Mays L.) in Eastern North Carolina
Author: Clyde E. SorensonEuropean Corn Borer (Ostrinia Nubilalis (Hubner)) Resistance in Maize
Author: Chareinsuk RojanaridpichedPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 480
Book Description
The Effects of the Second Generation European Corn Borer, Ostrinia Nubilalis (Hubner) (Lepidoptera
Author: P.A. VianaPublisher:
ISBN:
Category :
Languages : en
Pages : 126
Book Description
Research was conducted in 1981 and 1982 to quatify losses due to stalk breakage and dropped ears caused by 2nd-generation European corn borer under present corn production systems in Indiana. Insecticide treated and untreated portions of corn fields were compared at all test locations. Artificial infestation was achieved by pinning 2 egg masses (near hatching) through the leaf midrib of the ear leaf during the period of pollen shed. Chlorpyrifos (0.96 kg a.i./ha) was applied 1 or 2 times using a solo 425R knapsack sprayer and a Hi-BoyR sprayer in 1981 and 1982 experiments, respectively. Control was determined by counting entrance holes in the stalk and cavities caused by corn borer feeding in the stalk and ear shank. Stalk breakage before harvest was categorized as to its location in the stalk as top, above-ear, below-ear and bottom. Plants with visible ear shank damage were noted. Ears dropped to the ground before harvest and unpicked ears after harvest were counted and collected. Number of entrance holes was reduced by insecticide application in all experiments. The number of stalk cavities was lower in insecticide=treated plots than in untreated plots in all experiments, although nor significantly different in the 1981 experiment. Insecticide application had an effect on number of the borer cavities in the ear shank only in the 1981 experiment. Grain weight was higher in plots with insecticide application than no-insecticide treatment in 1981. No difference in grain weight was detected in 1982. the number (...).
Some Factors Influencing Populations of the European Corn Borer, Ostrinia Nubilalis (Hubner) in the North Central States
Author: Alton N. SparksControl and Loss Estimates of Second Generation European Corn Borer (Ostrinia Nubilalis Hubner) in Corn
Author: Terrell E. PrittsStudies on the Prevalence of the European Corn Borer in the East North Central States
Author: Arlo McGrillis VancePublisher:
ISBN:
Category : European corn borer
Languages : en
Pages : 32
Book Description
Mechanisms of Resistance to European Corn Borers, Ostrinia Nubilalis (Hubner), in Exotic Maize Lines
Author: Sue Lynn SullivanPublisher:
ISBN:
Category : Corn
Languages : en
Pages : 164
Book Description
Some Factors Influencing Populations of the European Corn Borer, Ostrinia Nubilalis (Hubner) in the North Central States
Author: Charles Wax CaillouetPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 660
Book Description