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. 2019 Apr 22;11(4):234. doi: 10.3390/toxins11040234

Table 4.

Insect antifeedant effects of B. majalis extracts and cantharidin (CTD).

Treatment Concentration (µg/cm2) Rhopalosiphum Padi Myzus Persicae
%SI b
Body 50 94.35 ± 2.42 82.75 ± 8.28
EC50 b 6.7 (4.63–9.63) 14.3 (8.1–25.3)
Hemolymph 50 96.84 ± 1.94 93.23 ± 5.0
EC50 b 0.8 (0.5–1.5) 3.38 (1.98–5.77)
CTD 50 94.7 ± 3.5 91.50 ± 2.31
EC50 b 0.098 (0.031–0.3) 0.211 (0.05–0.91)

a %SI = (1 − (T/C)) × 100, where T and C are settling on treated and control leaf disks. b EC50, effective dose to give a 50% inhibition (95% Confidence Limits).