Ear Resistance of Sweet Corn Populations to Sesamia nonagrioides (Lepidoptera: Noctuidae) and Ostrinia nubilalis (Lepidoptera: Pyralidae)

1999 ◽  
Vol 92 (3) ◽  
pp. 732-739 ◽  
Author(s):  
Pablo Velasco ◽  
Rosa Ana Malvar ◽  
Pedro Revilla ◽  
Ana Butrón ◽  
Amando Ordás
2004 ◽  
Vol 97 (4) ◽  
pp. 1432-1437 ◽  
Author(s):  
P. Velasco ◽  
P. Revilla ◽  
M. E. Cartea ◽  
A. Ordás ◽  
R. A. Malvar

1993 ◽  
Vol 125 (6) ◽  
pp. 1137-1139 ◽  
Author(s):  
William D. Hutchison

The European corn borer, Ostrinia nubilalis Hübner, continues to be a consistent economic pest of field and sweet corn (Zea mays L.) in the upper midwestem United States. In Minnesota alone, O. nubilalis control costs and losses to sweet corn (ca. 50 630 ha) exceed $5,000,000 annually (Noetzel et al. 1985). Despite recent efforts to implement alternatives (Lewis and Bing 1991; Prokrym et al. 1992; Bartels and Hutchison 1993; Bolin et al. 1993), insecticide control continues to play a central role in O. nubilalis management programs.


1995 ◽  
Vol 24 (2) ◽  
pp. 436-445 ◽  
Author(s):  
J. E. Losey ◽  
S. J. Fleischer ◽  
D. D. Calvin ◽  
W. L. Harkness ◽  
T. Leahy

2017 ◽  
Vol 4 (2) ◽  
pp. 1
Author(s):  
Nihat Demirel ◽  
Ömer Konuşkan

The European corn borer (ECB), Ostrinia nubilalis (Hübner) (Lepidoptera: Pyralidae) is one of the most important pest of grain corn and sweet corn in Turkey. The objective of this study was to assess percentage damage ratios of the ECB on stalk and corncobs of various sweet corn varieties in Reyhanlı district of Hatay province of Turkey.  The studies were carried out in 2015-2016 with four different sweet corn varieties including Caremelo, Vega, Merit and Batem. After two years of the study, the ECB larvae caused significant damages on stalk and corncobs of all sweet corn varieties.  The percentage damage of stalk and corncobs varied for each of the sweet corn varieties in both years.  In the first year, the highest percentages of stalk damage ratios were recorded on Batem (32.45), followed by Vega (19.85), Merit (17.07) and Caremelo (16.72).  In the second year,  the highest percentages of stalk damage ratios were observed on Merit (59.34),  followed by Caremelo (51.65),  Batem (45.09) and Vega (35.49).  In the first year, the largest percentages of corncobs damage ratios were recorded on Vega (25.73), followed by Batem (16.74), Caremelo (12.11), and Merit (9.30). In the second year,  the highest percentages of corncobs damage ratios were observed on Caremelo (14.31), followed by Merit (13.72), Batem (9.98) and Vega (8.93).  In conclusion, the largest percentages of stalk + corncobs damages ratios were observed on Batem (49.19), followed by Vega (45.58), Caremelo (28.83) and Merit (26.37) in 2015, while the highest percentages of stalk + corncobs damages ratios were recorded on Merit (73.06), followed by Caremelo (65.96), Batem (55.07) and Vega (44.42) in 2016.


2004 ◽  
Vol 97 (4) ◽  
pp. 1432-1437 ◽  
Author(s):  
P. Velasco ◽  
P. Revilla ◽  
M. E. Cartea ◽  
A. Ordás ◽  
R. A. Malvar

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