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Honeydew excretion (indicative of feeding amount) of BPH macropterous females feeding on rice leaf sheaths in response to Si amendment. +Si = Si amendment to rice plants at 112 mg Si/kg nutrient solution; –Si = no Si amendment. Error bars represent 1 × SE. n = 20 (biological replicates). An asterisk (*) indicates significant difference between +Si and –Si plants at a certain time post‐BPH infestation at p < .05 via independent samples T test
