Author: Clyde E. SorensonPublisher:
ISBN:
Category :
Languages : en
Pages : 206
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. SorensonEffects 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 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 (...).
The European Corn Borer, Pyrausta Nubilalis Hübner
Author: Alexander Edmond CancePublisher:
ISBN:
Category : Ammonia as fertilizer
Languages : en
Pages : 428
Book Description
Some Factors Influencing Populations of the European Corn Borer, Ostrinia Nubilalis (Hubner) in the North Central States
Author: Alton N. SparksInfluence of Field Corn Resistance on European Corn Borer (Ostrinia Nubilalis (Hubner)) Larval Survival
Author: Marco C. BuskeEuropean Corn Borer, Ostrinia Nubilalis (Hbn.) Populations in Field Corn, Zea Mays (L.) in the North Central United States
Author: Studies 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
Ovipositional Responses, Larval Feeding Behavior, and Injury Assessment of the European Corn Borer, Ostrinia Nubilalis (Hübner), to Cotton in North Carolina
Author: Catherine Elaine SavinelliPublisher:
ISBN:
Category :
Languages : en
Pages : 288
Book Description
Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 762
Book Description