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^: *http://esa.publisher.ingentaconnect.com/content/esa
^: Yang Yajun; Xu Hongxing; Zheng Xusong; Lu Zhongxian
^: Susceptibility and Selectivity of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae) to Different Cry Toxins [ Cnaphalocrocis medinalis (Lepidoptera: Pyralidae) Cry-. ()]
^: Journal of Economic Entomology, 2012; Vol.105,N 6. - P. 2122-2128
^: 2012
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^: 4 Cry- (Cry1Ac, Cry1Aa, Cry1Ab Cry1C) Cnaphalocrocis medinalis (Lepidoptera: Pyralidae), , ., . C. medinalis Cry-. 50 Cry1Ac, Cry1Ab, Cry1Aa Cry1C C. medinalis 0,405; 1,111; 1,939 1,246 / . C. medinalis Cry- : (50) Cry1Ac, Cry1Ab, Cry1Aa Cry1C . 1,5; 2,3; 1,6 2,2 . C. medinalis , Bacillus thuringiensis, , Bt-. Cry- . 8- C. medinalis , Cry1Ab (22,4-27,6% ), , Cry1Ac Cry1C. ( ..).

aref2 Effectiveness of four Cry toxins (Cry1Ac, Cry1Aa, Cry1Ab, and Cry1C) on Cnaphalocrocis medinalis (Guenée) (Lepidoptera: Pyralidae), collected from paddy fields in Jiaxing, Zhejiang Province, China, was evaluated in the laboratory. Bioassays showed that C. medinalis had different susceptibilities against four Cry toxins. The LC50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 0.405, 1.111, 1.939, and 1.246 μg/ml, respectively. Furthermore, the mortality of C. medinalis against different Cry toxins showed different results over time and LT50 values of Cry1Ac, Cry1Ab, Cry1Aa, and Cry1C against C. medinalis were 1.5, 2.3, 1.6, and 2.2 d, respectively. Preference of the larvae to Cry toxins revealed that C. medinalis larvae had no significant feeding preference on leaves without Bacillus thuringiensis (Bacillales: Bacillaceae; [Bt]) toxin compared with those containing Bt toxin. However, different Cry toxins had different attractive abilities to C. medinalis larvae. During 8 h after infestation, C. medinalis larvae preferred the leaves with Cry1Ab (22.4‐27.6%) over those with Cry1Ac or Cry1C.

^TRN: 1442786
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