Development of diagnostic concentrations for monitoring Bacillus thuringiensis resistance in European corn borer (Lepidoptera: Crambidae)

被引：50

作者：

Marçon, PCRG ^{[1
]}

Siegfried, BD ^{[1
]}

Spencer, T ^{[1
]}

Hutchison, WD ^{[1
]}

机构：

[1] Univ Nebraska, Dept Entomol, Lincoln, NE 68583 USA

来源：

JOURNAL OF ECONOMIC ENTOMOLOGY | 2000年 / 93卷 / 03期

关键词：

European corn borer; Bacillus thuringiensis; resistance monitoring;

D O I：

10.1603/0022-0493-93.3.925

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Two candidate diagnostic concentrations of the Cry1Ab and Cry1Ac toxins from Bacillus thuringiensis corresponding to the LC99 and EC99 (effective concentration that causes 99% growth inhibition) for European corn borer, Ostrinia nubilalis (Hubner), were determined based on previously obtained baseline data. Validation experiments using field-collected European corn borer populations from across North America showed that for Cry1Ab, a concentration corresponding to the upper limit of the 95% confidence interval of the LC99, produced mortality >99% for all populations tested. However, for Cry1Ac, adjustments and further validation are probably necessary. Development of B. thuringiensis resistance monitoring programs that rely on diagnostic techniques are discussed.

引用

页码：925 / 930

页数：6

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