Large Scale Synthesis of Green Synthesized Zinc Oxide Nanoparticles from Banana Peel Extracts and Their Inhibitory Effects against Colletotrichum sp., Isolate KUFC 021, Causal Agent of Anthracnose on Dendrobium Orchid

Table 1

Effects of synthesized ZnO NPs against Colletotrichum sp. (KUFC 021) in a greenhouse. Lower case letters represent significant differences determined by ANOVA, followed by Duncan’s posthoc test.

Treatment	Level of disease		Disease severity index (%)
	Day 7	Day 14	Day 7	Day 14
ZnO NPs (20 g/L)	2.0^b	2.10^b	41	45
ZnO NPs (30 g/L)	1.70^b	1.80^ab	34	36
Carbendazim (1 g/L)	1.75^b	2.10^b	35	43
Mancozeb (1.5 g/L)	1.70^b	1.90^ab	34	38
Control (+)	3.20^c	4.30^c	64	86
Control (-)	1.10^a	1.55^a	22	31