Table 4.

Percent mortality of Diatraea saccharalis (mean ± SE) strains on leaf discs of MON 89034 × MON 88017 maize and non‐Bt isoline, and in Cry1A.105 protein bioassays

Type of bioassay	D. saccharalis straina
	RR	R♀S♂	S♀R♂	SS
Leaf disc bioassays
Non‐Bt maize	7.81 ± 3.93 Bab	18.33 ± 1.67 Bb	4.69 ± 2.99 Ba	4.79 ± 1.60 Ba
MON 89034 × MON 88017	62.50 ± 7.65Aa	93.33 ± 6.67 Ab	100.00 ± 0.00 Ab	100.00 ± 0.00 Ab
Protein bioassays
20 µg of Cry1A.105 / mL diet	55.63 ± 8.24a	89.93 ± 4.65bc	85.94 ± 7.38b	99.51 ± 0.27c

^aA separate ANOVA was conducted for treatments within each type of bioassay (leaf disc and protein). Values followed by the same letters are not significantly different (LSD t‐test; P > 0.05). Capital letters indicate comparisons between host plants within each strain (within columns). Differences between strains within each host plant and in response to 20 µg of Cry1A.105 mL^–1 diet (within rows) are indicated with lowercase letters.