Analysis of Antifungal Components in the Galls of Melaphis chinensis and Their Effects on Control of Anthracnose Disease of Chinese Cabbage Caused by Colletotrichum higginsianum

Table 6

Effect of gallic acid and methyl gallate on control of anthracnose disease of Chinese cabbage caused by Colletotrichum higginsianum PA-01 in growth chamber.

Treatment	Conc. (μg/mL)	5 days^1		7 days		9 days
		LN^2	LA (%)	LN	LA (%)	LN	LA (%)
CK	0	18.3^a3	40.6^a	27.3^a	64.4^a	34.8^a	81.6^a
Gallic acid	125	7.1^b	16.6^b	10.7^b	25.5^b	23.6^b	69.1^b
	250	4.4^cd	10.6^cd	9.6^bc	24.0^bc	20.1^cd	56.4^c
	500	4.0^cd	10.3^cd	8.6^bcd	23.3^bc	17.8^de	55.5^c
	1000	4.0^cd	8.7^cd	6.7^cde	19.7^cd	13.2^f	38.4^d
Methyl gallate	125	4.7^c	11.6^c	9.4^bc	21.0^bcd	21.3^bc	54.2^c
	250	4.6^c	11.3^cd	7.7^bcd	20.3^cd	19.0^cd	52.1^c
	500	3.4^d	7.9^d	6.0d^e	17.9^d	14.9^ef	40.9^d
	1000	1.3^e	3.6^e	3.9^e	9.9^e	7.2^g	23.8^e
LSD0.05		1.23	3.55	2.95	4.86	3.36	7.54

Days after inoculation. ²LN: lesion number per 3 cm in diameter of infected leaves and LA (%): percentage of lesion area per 3 cm in diameter of infected leaves. ³Data in each column with the same letter are significantly different according to LSD test in .