Table 4.

Viruses that were detected in weeds and cultivated crops growing in vicinity of alfalfa fields that were collected during July–December of 2012 and 2013.

Region & location	Host	No. of samples	Viruses
			AMV	BCMV	BLRV	BYMV	CMV	LTSV	PeSV	RCVMV	TSV	WCMV
Jouf	Sonchus oleraceus	4	4	0	0	0	0	0	0	0	0	0
	Vigna unguculata	2	1	0	0	0	2	0	0	0	0	0
	Faba bean	1	0	1	1	1	0	0	0	1	1	0
	Cucurbita maxima	1	0	0	0	0	1	0	1	1	0	0
	Chenopodium spp.	2	1	0	0	0	0	0	0	0	0	0
Tabuk	Sonchus oleraceus	2	2	0	0	0	0	0	0	0	0	0
	Hibiscus spp.	4	0	0	0	0	1	0	0	0	0	0
Hail	Solanum tuberosum	4	1	1	0	0	0	0	0	0	0	0
	Sonchus oleraceus	4	1	1	0	0	0	0	0	0	0	0
	Hibiscus spp.	1	0	0	0	0	0	0	0	0	0	0
Qassim	Sonchus oleraceus	1	0	0	0	0	0	0	0	0	0	0
	Cucurbita maxima	1	0	0	0	0	0	0	0	0	0	0
	Chenopodium spp.	1	0	0	0	0	0	0	0	0	0	0
Riyadh region
WadiAldawasir	Sonchus oleraceus	13	11	0	0	0	0	0	0	0	0	0
	Vigna unguculata	1	1	0	0	0	0	0	0	0	0	0
	Hibiscus spp.	3	1	0	0	0	0	0	0	0	0	0
	Solanum tuberosum	2	1	0	1	0	0	0	0	0	0	0
	Chenopodium spp.	1	0	0	1	0	0	0	0	0	0	0
Shagra	Solanum melongena	1	1	0	0	0	0	0	0	0	0	0
Sagir	Flaveria trinervia	1	0	0	0	0	0	0	0	0	0	0
Haradh	Sonchus oleraceus	2	2	0	0	0	0	0	0	0	0	0
	Cichorium intybus	1	1	0	0	0	0	0	0	0	0	0
	Chenopodium spp.	1	0	0	0	0	0	0	0	0	0	0
Azulfi	Sonchus oleraceus	2	2	0	0	0	0	0	0	0	0	0
	Vigna unguculata	1	0	0	0	0	0	0	0	0	0	0
Alkharj	Hibiscus vulgaris	1	0	0	0	0	0	1	0	0	0	0
Alhotah	Vigna unguculata	2	1	0	0	0	0	0	0	0	0	0
	Chenopodium spp.	2	1	0	0	0	0	0	0	0	0	0
	Rubus fruticosus	2	0	0	1	0	0	0	0	0	0	0
Aflaj	Sonchus oleraceus	6	6	0	0	0	0	0	0	0	0	0
	Hippuris vulgaris	1	1	0	0	0	0	0	0	0	0	0
	Chenopodium spp.	2	2	0	0	0	0	0	0	0	0	0
	Rubus fruticosus	1	1	0	0	0	0	0	0	0	0	0
Total		74	42	3	4	1	4	1	1	2	1	0