Table 1.

Insecticidal activity of the mixture of 1 and 2 compared with those of milbemycins A3/A4 and ivermectin

Samples	LC50 (μg/ml)c
	C. elegans	M. separata
The mixture of 1 and 2 a	2.2 ± 0.7	19.4 ± 1.3
Milbemycin A3/A4b	5.4 ± 2.1	110.7 ± 7.4
Ivermectin	10.1 ± 1.3

^aThe mixture contains 70 % compound 1 and 30 % compound 2

^bMilbemycins A3/A4 contains 70 % A4 and 30 % A3

^cValues are the means ± SDs of three independent experiments