Table 1. Effect of brown planthopper (BPH, Nilaparvata lugens ) nlgst1-1 dsRNA and gramine in artificial diets on BPH mortality.

Source	df	4 d.p.f.		5 d.p.f.		6 d.p.f.
		F	P value	F	P value	F	P value
dsRNA	2	42.850	<0.01	19.955	<0.01	22.260	<0.01
Gramine	3	80.379	<0.01	76.694	<0.01	163.138	<0.01
dsRNA×Gramine	6	9.938	<0.01	1.752	0.152	0.707	0.647
Total	36

Note: d.p.f., days post feeding.