European Corn Borer (Lepidoptera: Pyralidae): Yield Losses and Damage in Popcorn in Relation to Hybrid and Stage of Plant Development

1986 ◽  
Vol 79 (3) ◽  
pp. 764-768 ◽  
Author(s):  
J. L. Jarvis ◽  
K. E. Ziegler ◽  
W. D. Guthrie
Keyword(s):  
Plant Development ◽  
European Corn Borer ◽  
Yield Losses ◽  
Corn Borer ◽  
Lepidoptera Pyralidae

EFFECTS OF A NATURAL BIVOLTINE STRAIN OF THE EUROPEAN CORN BORER, OSTRINIA NUBILALIS (LEPIDOPTERA: PYRALIDAE), ON GRAIN CORN YIELDS IN SOUTHWESTERN ONTARIO, 1973–77

1981 ◽  
Vol 113 (7) ◽  
pp. 585-591
Author(s):  
W. H. Foott ◽  
P. R. Timmins
Keyword(s):  
Moisture Content ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
First Generation ◽  
Second Generation ◽  
Yield Losses ◽  
Corn Borer ◽  
Lepidoptera Pyralidae

AbstractA 5-year study of a bivoltine strain of the European corn borer, Ostrinia nubilalis (Hübner), showed that first-generation moths deposited more eggs on early-planted corn, whereas second-generation moths oviposited more frequently on late-planted corn. The second generation was much larger than the first generation and caused the greater reduction in yield, regardless of whether the yields were based on physiological losses or a combination of physiological losses and dropped ears. It was shown that delay of harvest beyond the time that moisture content of the corn was sufficiently low for machine harvesting could result in severe yield losses from broken stalks and dropped ears during autumn storms.

EVIDENCE OF A MALE SEX PHEROMONE IN THE EUROPEAN CORN BORER, OSTRINIA NUBILALIS (HÜBNER) (LEPIDOPTERA: PYRALIDAE)

1992 ◽  
Vol 124 (1) ◽  
pp. 113-116 ◽  
Author(s):  
Lucie Royer ◽  
Jeremy N. McNeil
Keyword(s):  
Sex Pheromone ◽  
Mating System ◽  
Mating Success ◽  
Ostrinia Nubilalis ◽  
European Corn Borer ◽  
Male Pheromone ◽  
Corn Borer ◽  
Male Sex Pheromone ◽  
Lepidoptera Pyralidae ◽  
Male Sex

AbstractEuropean corn borer males have hair pencils located ventrally on the 8th sternite and these are extruded when a male approaches a calling female. The fact that (i) antennectomized females mated significantly less than both intact controls and individuals subjected to other forms of surgery, and (ii) males with hair pencils removed had a significantly lower mating success than control males, suggests that a male pheromone is involved in the mating system of the European corn borer.

Scambus pterophori (Ashm.) (Hymenoptera: Ichneumonidae), a New Parasite of the European Corn Borer, Pyrausta nubilalis (Hbn.) (Lepidoptera: Pyralidae), in Canada

1959 ◽  
Vol 91 (2) ◽  
pp. 128-128
Author(s):  
Marcel Hudon
Keyword(s):  
European Corn Borer ◽  
Second Generation ◽  
Petri Dish ◽  
First Record ◽  
Corn Borer ◽  
Lepidoptera Pyralidae ◽  
Pyrausta Nubilalis ◽  
Experimental Plots

In late August, 1957, a parasitized second-generation pupa of Pyrausta nubilalis (Hbn.) was observed in silks of an immature corn ear in the experimental plots at St. Jean. The pupa was incubated at 75°F. in a petri dish, and two weeks later an ichneumonid parasite emerged and was identified by Mr. G. S. Walley, Entomology Division, Ottawa, as Scambus pterophori (Ashm.). Asecond generation of P. nubilalis is very unusual in the St. Jean area. This is apparently the first record of this ichneumonid as a parasite of P. nubilalis in Canada.

European Corn Borer (Lepidoptera: Pyralidae) Development Time Model

1996 ◽  
Vol 25 (2) ◽  
pp. 310-320 ◽  
Author(s):  
B. Got ◽  
J. M. Labatte ◽  
S. Piry
Keyword(s):  
European Corn Borer ◽  
Development Time ◽  
Time Model ◽  
Corn Borer ◽  
Lepidoptera Pyralidae

Reduction of European Corn Borer (Lepidoptera: Pyralidae) Damage by Intercropping Corn with Soybean

1989 ◽  
Vol 82 (5) ◽  
pp. 1455-1459 ◽  
Author(s):  
Ralph C. Martin ◽  
Thor J. Arnason ◽  
John D. H. Lambert ◽  
Pierre Isabelle ◽  
Harvey D. Voldeng ◽  
...  
Keyword(s):  
European Corn Borer ◽  
Corn Borer ◽  
Lepidoptera Pyralidae
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