Herbicide Effectiveness on Weeds 
in Grass Seed Crops
Reviewed December 12, 2008

Perennial Ryegrass―Broadleaf Weeds

 
Weeds	pendimethalin 	oxyfluorfen	diuron 	metribuzin 	paraquat 	glyphosate	2,4-D	MCPA	dicamba	clopyralid 	tribenuron-methyl 	bromoxynil 	fluroxypyr	quinclorac 	carfentrazone 	
Bedstraw 
Galium aparine 		G	P	P	F-G	G	P-F	P-F	F	P-F		P-F	F-G	F-G	G	
Bittercress 
Cardamine spp. 		G	G	G	G	G	G	G	F-G	P-G	G	F-G			G	
Broadleaf plantain 
Plantago major 			P			G	G	G	F							
Buckhorn plantain 
Plantago lanceolata 			P			G	G	G	F							
Bull thistle 
Cirsium vulgare 		G(s)	G(s)	G(s)	G(s)	G	G	G	G	G		G				
Canada thistle 
Cirsium arvense 	P	P	P	P	P	F-G	F-G	F	F-G	G	F-G	P	P-F			
Common chickweed 
Stellaria media 	G	P	G	G	G	G	P-F	P-F	F-G	F-G	G	P-F	G			
Common dandelion 
Taraxacum officinale 		G(s)	G(s)	G(s)	G(s)	G	G	G	F-G	G		G(s)				
Common groundsel 
Senecio vulgaris 	P	G	F	F	G(s)	G	F-G	F-G	F-G	G	G	P-G				
Common lambsquarters Chenopodium album 					G	G	G	G	G	P-G	G	G			G	
Field bindweed 
Convolvulus arvensis 						F-G	F-G	F-G	F-G	P-F		P-F		G		
Filaree 
Erodium spp. 		G	F	G	G(s)	G	G	G	G	P-F		G			F-G	
Geranium 
Geranium spp. 			G	G	G(s)	G	F-G	F-G	F-G		F					
Hawksbeard 
Crepis spp. 		G(s)	G(s)	G(s)	G(s)	G	P-F	P-F	G	G		G				
Hedge mustard 
Sisymbrium officinale 			G	G	G(s)	G	G	G	P-F	P-G	G	F-G	F			
Henbit 
Lamium amplexicaule 	F-G		G	G	G	G	F	F	G		F	P-F			F-G	
Mayweed chamomile 
Anthemis cotula 	G	G	G	G	F-G	G	P-F	P-F	F	F-G	G	F-G			P	
Mustard 
Brassica spp. 	F		G	G	G(s)	G	G	G	F-G	P-G	G	F-G	P-F		F-G	
Pineappleweed 
Matricaria matricarioides 			F		F-G	G	F		F	G	G	G				
Prickly lettuce 
Lactuca serriola 	G	G	G(s)	G(s)	G(s)	G	G	G	G	G	P-G	F-G	G			
Prostrate knotweed 
Polygonum aviculare 	F-G	F-G	F	F	G(s)	G	P-F	P-F	G		F	F-G	F			
Redroot pigweed 
Amaranthus retroflexus 					G	G	G	G	G	P-G	F	F-G			G	
Red sorrel 
Rumex acetosella 		P	P				F(s)	F(s)	F-G	F-G	F(s)	F(s)				
Sharppoint fluvellin 
Kickxia elatine 		G(s)	P		G	G	P	P	P		G(s)	P-F			P	
Shepherdspurse 
Capsella bursa-pastoris 	F-G	G(s)	G(s)	G(s)	G(s)	G	G	G	F-G	P-G	F	F-G			G	
Smartweed 
Polygonum spp. 	F	F-G	F		G	G	F-G	F	G	F	F	G				
Sowthistle 
Sonchus spp. 	G	G	G	G	G	G	G	G	G	G	F	G				
Speedwell 
Veronica spp. 		G	P	F-G	G	G	P	P	P-F	P-F	F	F	F		G	
Spotted catsear Hypochaeris radicata 		G(s)	G(s)	G(s)	G(s)	G	G	G	G	G		G(s)				
Sticky chickweed 
Cerastium viscosum 	G	P	G	G	G	G	P-F	P-F	F			P-F	G			
Toadrush 
Juncus bufonius 			G		G	G	G	G								
Vetch 
Vicia spp. 			P	P	G	G	G	G	G	G	F-G	F-G				
Wild carrot 
Daucus carota 		P	P	P	G(s)	F-G	P-F	P-F	P-F	Fs	F-G	Fs	P	P-F	P	
Wild radish 
Raphanus raphanistrum 			G(s)	G(s)	G(s)	G	G	G	F-G	P-G	F	F-G		F-G		
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage 

Perennial Ryegrass―Grass Weeds			

Weeds
	pendimethalin 

	S-metolachlor 

	S-dimethenamid 

	flufenacet + metribuzin 

	oxyfluorfen

	diuron 

	metribuzin 

	pronamide 

	ethofumesate 

	glufosinate 

	paraquat 

	glyphosate
	
Annual bluegrass―resistant 
Poa annua 	G	F	F	G	P-F	P-F	F	G	P-F	F	G	G	
Annual bluegrass―susceptible 
Poa annua	G	F-G	F-G	G	P-F	G	F	G	G	F	G	G	
Annual bromes
Bromus spp. 	P-F	P-G	P-G	P-G	P-F	P	F	F-G	F-G	P-G	G	G	
Barnyardgrass 
Echinochloa crus-galli 											G	G	
Bentgrass
Agrostis spp. 	G(s)	G(s)	G(s)	G(s)	G(s)	G(s)	G(s)	G(s)	G(s)	F(s)	G(s)	G	
California brome 
Bromus carinatus 	F(s)	F(s)	F(s)	F(s)	F(s)	P	F(s)	G(s)	G(s)	F(s)	G(s)	G	
Common velvetgrass 
Holcus lanatus 												G	
Crabgrass 
Digitaria spp. 											G	G	
Foxtail 
Setaria spp. 											G	G	
German velvetgrass 
Holcus mollis 	P	P	P	P	P	P	P					G	
Italian ryegrass―resistant Lolium multiflorum 	G	G	G	G	P-F	P-F	F-G	F	P	P-F	G	G	
Italian ryegrass―susceptible 
Lolium multiflorum	G	G	G	G	P-F	F-G	F-G	F	P	P-F	G	G	
Mannagrass 
Glyceria occidentalis 									P-F	F	G	G	
Quackgrass 
Elytrigia repens 	P	P	P	P	P	P	P	P-F			F(s)	G	
Rattail fescue 
Vulpia myuros 	G	G	G	G	F-G	G	F	G	F-G	P-F	G	G	
Roughstalk bluegrass 
Poa trivialis 	G(s)	F(s)	F(s)	G(s)	F(s)	F(s)	F(s)		F(s)	F-G	G(s)	G	
Volunteer crop seedlings	F-G	F-G	F-G	F-G	P-F	P-G	P-G	P-F	P		G	G	
Wild oat 
Avena fatua 	P-F	P-F	F	F-G	P-F	P	P-F	P-F	F-G		G	G	
Witchgrass 
Panicum capillare 											G	G	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage	 

Annual Ryegrass―Broadleaf Weeds			

Weeds	paraquat 
	glyphosate
	2,4-D
	MCPA
	dicamba 

	clopyralid 
	tribenuron-methyl 

	bromoxynil 

	fluroxypyr 

	quinclorac 

	carfentrazone 

Bedstraw 
Galium aparine 	F-G	G	P-F	P-F	F	P-F		P-F	F-G	G	G	
Bittercress 
Cardamine spp. 	G	G	G	G	F-G	P-G	G	F-G			G	
Broadleaf plantain
Plantago major 		G	G	G	F							
Buckhorn plantain 
Plantago lanceolata 		G	G	G	F							
Bull thistle 
Cirsium vulgare 	G(s)	G	G	G	G	G		G				
Canada thistle 
Cirsium arvense 	P	F-G	F-G	F	F-G	G	F-G	P	P-F		P	
Common chickweed 
Stellaria media 	G	G	P-F	P-F	F-G	F-G	G	P-F	G			
Common dandelion 
Taraxacum officinale 	G(s)	G	G	G	F-G	G		G(s)				
Common groundsel 
Senecio vulgaris 	G(s)	G	F-G	F-G	F-G	G	G	P-G				
Common lambsquarters Chenopodium album 	G	G	G	G	G	P-G	G	G			G	
Field bindweed 
Convolvulus arvensis 	P	F-G	F-G	F-G	F-G	P-F	P	P-F		G		
Filaree 
Erodium spp. 	G	G	G	G	G	P-F		G			F-G	
Geranium 
Geranium spp. 	G	G	F-G	F-G	F-G		F-G					
Hawksbeard 
Crepis spp. 	G(s)	G	P-F	P-F	G	G		G				
Hedge mustard 
Sisymbrium officinale 	G(s)	G	G	G	F-G	P-G	G	F-G	F			
Henbit 
Lamium amplexicaule 	G	G	F	F	G		F	P-F			F-G	
Mayweed chamomile 
Anthemis cotula 	F-G	G	P-F	P-F	F	F-G	G	F-G			P	
Mustard 
Brassica spp. 	G(s)	G	G	G	F-G	P-G	G	F-G	P-F		F-G	
Pineappleweed 
Matricaria matricarioides 	F-G	G	F		F	G	G	G				
Prickly lettuce 
Lactuca serriola 	G(s)	G	G	G	G	G	P-G	F-G	G			
Prostrate knotweed 
Polygonum aviculare 	G	G	P-F	P-F	G		F	F-G	F			
Redroot pigweed 
Amaranthus retroflexus 	G	G	G	G	G	P-G	F	F-G			G	
Red sorrel 
Rumex acetosella 			P-F(s)	P-F(s)	F-G	F-G	P-F(s)					
Sharppoint fluvellin
Kickxia elatine 	G	G	P	P	P		P-F	P-F				
Shepherdspurse 
Capsella bursa-pastoris 	G(s)	G	G	G	F-G	P-G	F	F-G			G	
Smartweed 
Polygonum spp. 	G	G	F-G	F	G	F	F	G				
Sowthistle 
Sonchus spp. 	G	G	G	G	G	G	F	G				
Speedwell 
Veronica spp. 	G	G	P	P	P-F	P-F	F	F	F		G	
Spotted catsear Hypochaeris radicata 	G(s)	G	G	G	G	G		G(s)				
Sticky chickweed 
Cerastium viscosum 	G	G	P-F	P-F	F			P-F	G			
Toadrush 
Juncus bufonius 	G	G	G	G								
Vetch 
Vicia spp. 	G	G	G	G	G	G	F-G	F-G				
Wild carrot 
Daucus carota 	G(s)	F-G	P-F	P-F	P-F	F(s)	F-G	Fs	P	P-F	P	
Wild radish 
Raphanus raphanistrum 	G(s)	G	G	G	F-G	P-G	F	F-G			F-G	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage

Annual Ryegrass―Grass Weeds

Weeds	ethofumesate 
	glufosinate 

	paraquat  
	glyphosate	
Annual bluegrass―resistant 
Poa annua	P-F	F	G	G	
Annual bluegrass―susceptible 
Poa annua	G	F	G	G	
Annual bromes 
Bromus spp.	F-G		G	G	
Barnyardgrass 
Echinochloa crus-galli			G	G	
Bentgrass 
Agrostis spp.	G(s)	F(s)	G(s)	G	
California brome 
Bromus carinatus	F-G(s)	P-F	G(s)	G	
Common velvetgrass 
Holcus lanatus				G	
Crabgrass 
Digitaria spp.			G	G	
Foxtail 
Setaria spp.			G	G	
German velvetgrass 
Holcus mollis	P		P	G	
Mannagrass 
Glyceria occidentalis	P-F	F	G	G	
Quackgrass 
Elytrigia repens			F(s)	G	
Rattail fescue 
Vulpia myuros	F-G	P-F	G	G	
Roughstalk bluegrass 
Poa trivialis	F(s)	F-G	G(s)	G	
Volunteer crop seedlings	P		G	G	
Wild oat 
Avena fatua	F-G		G	G	
Witchgrass 
Panicum capillare			G	G	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage	

Tall Fescue―Broadleaf Weeds

Weeds	pendimethalin 
	oxyfluorfen 

	diuron 

	metribuzin 

	paraquat 

	glyphosate
	2,4-D
	MCPA
	dicamba 

	clopyralid 

	tribenuron-methyl 
	bromoxynil 
	fluroxypyr 
	quinclorac 

	carfentrazone 
	
Bedstraw 
Galium aparine		G	P	P	F-G	G	P-F	P-F	F	P-F		P-F	E	G	G	
Bittercress 
Cardamine spp.		G	G	G	G	G	G	G	F-G	P-G	G	F-G			G	
Broadleaf plantain 
Plantago major 	 	 	P 	 	 	G 	G 	G 	F 	 	 	 	 			
Buckhorn plantain 
Plantago lanceolata 	 	 	P 	 	 	G 	G 	G 	F 	 	 	 	 	 		
Bull thistle 
Cirsium vulgare 	 	G(s) 	G(s)	G(s)	G(s)	G 	G 	G 	G 	G 	 	G 	 	 		
Canada thistle
 Cirsium arvense	P	P	P	P	P	F-G	F-G	F	F-G	G	F-G	P	P-F			
Common chickweed 
Stellaria media	G	P	G	G	G	G	P-F	P-F	F-G	F-G	G	P-F	G			
Common dandelion 
Taraxacum officinale 	 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	F-G 	G 	 	G(s)	 	 		
Common groundsel 
Senecio vulgaris	P	G	F	F	G(s)	G	F-G	F-G	F-G	G	G	P-G				
Common lambsquarters Chenopodium album					G	G	G	G	G	P-G	G	G			G	
Field bindweed 
Convolvulus arvensis						F-G	F-G	F-G	F-G	P-F		P-F		G		
Filaree 
Erodium spp. 	 	G 	F 	G 	G 	G 	G 	G 	G 	P-F 	 	G 	 	 	F-G 	
Geranium 
Geranium spp. 	 	 	G 	G 	G 	G 	F-G 	F-G 	F-G 	 	F 	 	 	 		
Hawksbeard 
Crepis spp. 	 	G(s)	G(s)	G(s)	G(s)	G 	P-F 	P-F 	G 	G 	 	G 	 	 		
Hedge mustard 
Sisymbrium officinale			G	G	G(s)	G	G	G	F-G	P-G	G	F-G	F			
Henbit 
Lamium amplexicaule 	 F-G 	 	G 	G 	G 	G 	F 	F 	G 	 	F 	P-F 	 	 	F-G 	
Mayweed chamomile 
Anthemis cotula	G	G	G	G	F-G	G	P-F	P-F	F	F-G	G	F-G			P	
Mustard 
Brassica spp.	F		G	G	G(s)	G	G	G	F-G	P-G	G	F-G	P-F		F-G	
Pineappleweed 
Matricaria matricarioides			F		F-G	G	F		F	G	G	G				
Prickly lettuce 
Lactuca serriola 	 G 	G 	G(s)	G(s)	G(s)	G 	G 	G 	G 	G 	P-G 	F-G 	G 	 		
Prostrate knotweed 
Polygonum aviculare 	 F-G 	F-G 	F 	F 	G 	G 	P-F 	P-F 	G 	 	F 	F-G 	F 	 		
Redroot pigweed 
Amaranthus retroflexus					G	G	G	G	G	P-G	F	F-G			G	
Red sorrel 
Rumex acetosella		P	P				F(s)	F(s)	F-G	F-G		F(s)				
Sharppoint fluvellin 
Kickxia elatine		G(s)	P		G	G	P	P	P		G(s)	P-F			P	
Shepherdspurse 
Capsella bursa-pastoris 	 F-G 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	F-G 	P-G 	F 	F-G 	 	 	G 	
Smartweed 
Polygonum spp. 	 F 	F-G 	F 	 	G 	G 	F-G 	F 	G 	F 	F 	G 	 	 		
Sowthistle 
Sonchus spp. 	 G 	G 	G 	G 	G 	G 	G 	G 	G 	G 	F 	G 	 	 		
Speedwell 
Veronica spp.		G	P	F-G	G	G	P	P	P-F	P-F	F	F	F		G	
Spotted catsear Hypochaeris radicata 	 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	G 	G 	 	G(s)	 	 		
Sticky chickweed 
Cerastium viscosum	G	P	G	G	G	G	P-F	P-F	F			P-F	G			
Toad rush 
Juncus bufonius 	 	 	G 	 	G 	G 	G 	G 	 	 	 	 	 	 		
Vetch 
Vicia spp. 	 	 	P 	P 	G 	G 	G 	G 	G 	G 	F-G 	F-G 	 	 		
Wild carrot 
Daucus carota 	 	P 	P 	P 	G(s)	F-G 	P-F 	P-F 	P-F 	F(s)	F-G 	F(s)	P 	P-F 	P 	
Wild radish 
Raphanus raphanistrum 	 	 	G(s)	G(s)	G(s)	G 	G 	G 	F-G 	P-G 	F 	F-G 	 	 	F-G 	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage		

Tall Fescue―Grass Weeds

Weeds	pendimethalin 
	S-metolachlor 

	S-dimethenamid 
	flufenacet + metribuzin 

	oxyfluorfen 
	diuron 

	metribuzin 

	terbacil 

	pronamide 
	ethofumesate 
	glufosinate 

	paraquat 

	glyphosate
	
Annual bluegrass―resistant 
Poa annua	G	F	F	G	P-F	P-F	F	P-F	G	P-F	F	G	G	
Annual bluegrass―susceptible 
Poa annua	G	F-G	F-G	G	P-F	G	F	F-G	G	G	F	G	G	
Annual bromes 
Bromus spp.	P-F	P-G	P-G	P-G	P-F	P	F	F-G	F-G	F-G		G	G	
Italian ryegrass―resistant 
Lolium multiflorum	G	G	G	G	P-F	P-F	F-G	F-G	F	P	P-F	G	G	
Italian ryegrass―susceptible 
Lolium multiflorum	G	G	G	G	P-F	F-G	F-G	F-G	F	P	P-F	G	G	
Barnyardgrass 
Echinochloa crus-galli												G	G	
Bentgrass 
Agrostis spp.	G(s)	G(s)	G(s)	G(s)	G(s)	G(s)	G(s)		G(s)	G	F(s)	G(s)	G	
California brome 
Bromus carinatus	F(s)	F(s)	F(s)	F(s)	F(s)	P	F(s)	F(s)	G(s)	F(s)	F(s)	G(s)	G	
Common velvetgrass 
Holcus lanatus													G	
Crabgrass 
Digitaria spp.												G	G	
Foxtail 
Setaria spp.												G	G	
German velvetgrass 
Holcus mollis	P	P	P	P	P	P	P	P					G	
Mannagrass 
Glyceria occidentalis										P-F	F	G	G	
Quackgrass 
Elytrigia repens	P	P	P	P	P	P	P	P	P-F			F(s)	G	
Rattail fescue 
Vulpia myuros	G	G	G	G	F-G	G	F	F-G	G	F-G	P-F	G	G	
Roughstalk bluegrass 
Poa trivialis	G(s)	F(s)	F(s)	G(s)	F(s)	F(s)	F(s)			F(s)	F-G	G(s)	G	
Volunteer crop seedlings	F-G	F-G	F-G	F-G	P-F	P-G	P-G	F-G	P-F	P		G	G	
Wild oat 
Avena fatua	P-F	P-F	F	F-G	P-F	P	P-F		P-F	F-G		G	G	
Witchgrass 
Panicum capillare												G	G	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage												

Fine Fescue―Broadleaf Weeds

Weeds	pendimethalin
	oxyfluorfen 
	diuron 
	metribuzin
	paraquat 
	
glyphosate
	2,4-D
	MCPA
	dicamba 
	clopyralid 	
tribenuron-methyl 
	
bromoxynil 	fluroxypyr	carfentrazone 
	
Bedstraw 
Galium aparine 	 	G 	P 	P 	F-G 	G 	P-F 	P-F 	F 	P-F 	 	P-F 	F-G 	G 	
Bittercress 
Cardamine spp. 	 	G 	G 	G 	G 	G 	G 	G 	F-G 	P-G 	G 	F-G 	 	G 	
Broadleaf plantain 
Plantago major 	 	 	P 	 	 	G 	G 	G 	F 	 	 	 	 		
Buckhorn plantain 
Plantago lanceolata 	 	 	P 	 	 	G 	G 	G 	F 	 	 	 	 		
Bull thistle 
Cirsium vulgare 	 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	G 	G 	 	G 	 	 	
Canada thistle 
Cirsium arvense 	P 	P 	P 	P 	P 	F-G 	F-G 	F 	F-G 	G 	F-G 	P 	P-F 	 	
Common chickweed 
Stellaria media 	G 	P 	G 	G 	G 	G 	P-F 	P-F 	F-G 	F-G 	G 	P-F 	G 	 	
Common dandelion 
Taraxacum officinale 	 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	F-G 	G 	 	G(s)	 		
Common groundsel 
Senecio vulgaris	P 	 	G 	F 	F 	G(s)	G 	F-G 	F-G 	F-G 	G 	G 	P-G 	 	
Common lambsquarters Chenopodium album 	 	 	 	 	G 	G 	G 	G 	G 	P-G 	G 	G 	 	G 	
Field bindweed 
Convolvulus arvensis 	 	 	 	 	 	F-G 	F-G 	F-G 	F-G 	P-F 	 	P-F 	 	 	
Filaree 
Erodium spp. 	 	G 	F 	G 	G 	G 	G 	G 	G 	P-F 	 	G 	 	F-G 	
Geranium 
Geranium spp. 	 	 	G 	G 	G 	G 	F-G 	F-G 	F-G 	 	F 	 	 	 	
Hawksbeard 
Crepis spp. 	 	G(s)	G(s)	G(s)	G(s)	G 	P-F 	P-F 	G 	G 	 	G 	 	 	
Hedge mustard 
Sisymbrium officinale	 	 	 	G 	G 	G(s)	G 	G 	G 	F-G 	P-G 	G 	F-G 	F 	
Henbit 
Lamium amplexicaule 	F-G 	 	G 	G 	G 	G 	F 	F 	G 	 	F 	P-F 	 	F-G 	
Mayweed chamomile 
Anthemis cotula 	G 	G 	G 	G 	F-G 	G 	P-F 	P-F 	F 	F-G 	G 	F-G 	 	P	
Mustard 
Brassica spp. 	F 	 	G 	G 	G(s)	G 	G 	G 	F-G 	P-G 	G 	F-G 	P-F 	F-G 	
Pineappleweed 
Matricaria matricarioides 	 	 	F 	 	F-G 	G 	F 	 	F 	G 	G 	G 	 	 	
Prickly lettuce
Lactuca serriola 	G 	G 	G(s)	G(s)	G(s)	G 	G 	G 	G 	G 	P-G 	F-G 	G 	 	
Prostrate knotweed 
Polygonum aviculare 	F-G 	F-G 	F 	F 	G 	G 	P-F 	P-F 	G 	 	F 	F-G 	F 		
Red sorrel 
Rumex acetosella 	 	P 	P 	 	 	 	P-F 	P-F 	F-G 	F-G 	 	P-F 	 	 	
Redroot pigweed 
Amaranthus retroflexus 	 	 	 	 	G 	G 	G 	G 	G 	P-G 	F 	F-G 	 	G 	
Sharppoint fluvellin 
Kickxia elatine 	 	G(s)	P 	 	G 	G 	P 	P 	P 	 	G(s)	P-F 	 	P 	
Shepherdspurse 
Capsella bursa-pastoris 	F-G 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	F-G 	P-G 	F 	F-G 	 	G 	
Smartweed 
Polygonum spp. 	F 	F-G 	F 	 	G 	G 	F-G 	F 	G 	F 	F 	G 	 	 	
Sowthistle 
Sonchus spp. 	G 	G 	G 	G 	G 	G 	G 	G 	G 	G 	F 	G 	 	 	
Speedwell 
Veronica spp. 	 	G 	P 	F-G 	G 	G 	P 	P 	P-F 	P-F 	F 	F 	F 	G 	
Spotted catsear Hypochaeris radicata 	 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	G 	G 	 	G(s)	 		
Sticky chickweed 
Cerastium viscosum 	G 	P 	G 	G 	G 	G 	P-F 	P-F 	F 	 	 	P-F 	G 		
Toad rush 
Juncus bufonius 	 	 	G 	 	G 	G 	G 	G 	 	 	 	 	 	 	
Vetch 
Vicia spp. 	 	 	P 	P 	G 	G 	G 	G 	G 	G 	F-G 	F-G 	 	 	
Wild carrot 
Daucus carota 	 	P 	P 	P 	G(s)	F-G 	P-F 	P-F 	P-F 	F(s) 	F-G 	F(s) 	P 	P 	
Wild radish 
Raphanus raphanistrum 	 	 	G(s)	G(s)	G(s)	G 	G 	G 	F-G 	P-G 	F 	F-G 	 	F-G 	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage

Fine Fescue―Grass Weeds

Weeds	pendimethalin 

	S-metolachlor 

	S -dimethenamid 
	flufenacet + metribuzin 

	oxyfluorfen 

	diuron 

	metribuzin 

	terbacil 

	glufosinate 

	paraquat 

	glyphosate
	sethoxydim 

	fluazifop-butyl 

Annual bluegrass―resistant 
Poa annua 	G 	F 	F 	G 	P-F 	P-F 	F 	P-F 	F 	G 	G 	P 	P 	
Annual bluegrass―susceptible 
Poa annua 	G 	F-G 	F-G 	G 	P-F 	G 	F 	F-G 	F 	G 	G 	P 	P 	
Annual bromes
Bromus spp. 	P-F 	P-G 	P-G 	P-G 	P-F 	P 	F 	F-G 	 	G 	G 	P-F 	F-G 	
Italian ryegrass―resistant Lolium multiflorum	G 	G 	G 	G 	P-F 	P-F 	F-G 	F-G 	P-F 	G 	G 	F-G 	F-G 	
Italian ryegrass―susceptible 
Lolium multiflorum	G 	G 	G 	G 	P-F 	F-G 	F-G 	F-G 	P-F 	G 	G 	F-G 	F-G 	
Barnyardgrass 
Echinochloa crus-galli 	 	 	 	 	 	 	 	 	 	G 	G 	F-G 	F-G 	
Bentgrass 
Agrostis spp. 	G(s)	Fs 	Fs 	G(s)	G(s)	G(s)	G(s)	 	F(s) 	G(s)	G 	F-G 	F-G 	
California brome 
Bromus carinatus 	F(s) 	F(s) 	F(s) 	F(s) 	F(s) 	P 	F(s) 	F(s) 	F(s) 	G(s)	G 	P-F 	F-G 	
Common velvetgrass 
Holcus lanatus 	 	 	 	 	 	 	 	 	 	 	G 	F-G 	F-G 	
Crabgrass 
Digitaria spp. 	 	 	 	 	 	 	 	 	 	G 	G 	F-G 	F-G 	
Foxtail 
Setaria spp. 	 	 	 	 	 	 	 	 	 	G 	G 	F-G 	F-G 	
German velvetgrass 
Holcus mollis 	P 	P 	P 	P 	P 	P 	P 	P 	 	 	G 	F-G 	F-G 	
Mannagrass 
Glyceria occidentalis 	 	 	 	 	 	 	 	 	F 	G 	G 	 	 	
Quackgrass 
Elytrigia repens 	P 	P 	P 	P 	P 	P 	P 	P 	 	F(s) 	G 	P-F 	F-G 	
Rattail fescue 
Vulpia myuros 	G 	G 	G 	G 	F-G 	G 	F 	F-G 	P-F 	G 	G 	P 	P 	
Roughstalk bluegrass 
Poa trivialis 	G(s)	F(s) 	F(s) 	G(s)	F(s) 	F(s) 	F(s) 	 	F-G 	G(s)	G 	F-G 	F-G 	
Volunteer crop seedlings 	F-G 	F-G 	F-G 	F-G 	P-F 	P-G 	P-G 	F-G 	 	G 	G 	P 	P 	
Wild oat 
Avena fatua 	P-F 	P-F 	F 	F-G 	P-F 	P 	P-F 	 	 	G 	G 	F-G 	F-G 	
Witchgrass 
Panicum capillare 	 	 	 	 	 	 	 	 	 	G 	G 	G 	F-G 	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage

Bentgrass―Broadleaf Weeds

Weeds	pendimethalin	oxyfluorfen 
	diuron
	metribuzin 
	paraquat
	glyphosate
	2,4‑D
	MCPA
	dicamba 
	clopyralid 
	tribenuron-methyl 

	bromoxynil 
	fluroxypyr
	carfentrazone 
	
Bedstraw 
Galium aparine 	 	G 	P 	P 	F-G 	G 	P-F 	P-F 	F 	P-F 	 	P-F 	E 	G 	
Bittercress 
Cardamine spp. 	 	G 	G 	G 	G 	G 	G 	G 	F-G 	P-G 	G 	F-G 	 	G 	
Broadleaf plantain 
Plantago major 	 	 	P 	 	 	G 	G 	G 	F 	 	 	 	 	 	
Buckhorn plantain 
Plantago lanceolata 	 	 	P 	 	 	G 	G 	G 	F 	 	 	 	 	 	
Bull thistle 
Cirsium vulgare 	 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	G 	G 	 	G 	 	 	
Canada thistle 
Cirsium arvense 	P 	P 	P 	P 	P 	F-G 	F-G 	F 	F-G 	G 	F-G 	P 	P-F 	 	
Common chickweed 
Stellaria media 	G 	P 	G 	G 	G 	G 	P-F 	P-F 	F-G 	F-G 	G 	P-F 	G 	 	
Common dandelion 
Taraxacum officinale 	 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	F-G 	G 	 	G(s)	 	 	
Common groundsel 
Senecio vulgaris 	P 	G 	F 	F 	G(s)	G 	F-G 	F-G 	F-G 	G 	G 	P-G 	 	 	
Common lambsquarters Chenopodium album		 	 	 	G 	G 	G 	G 	G 	P-G 	G 	G 	 	G 	
Field bindweed 
Convolvulus arvensis 	 	 	 	 	 	F-G 	F-G 	F-G 	F-G 	P-F 	 	P-F 	 	 	
Filaree 
Erodium spp. 	 	G 	F 	G 	G 	G 	G 	G 	G 	P-F 	 	G 	 	F-G 	
Geranium 
Geranium spp. 	 	 	G 	G 	G 	G 	F-G 	F-G 	F-G 	 	F 	 	 	 	
Hawksbeard 
Crepis spp. 	 	G(s)	G(s)	G(s)	G(s)	G 	P-F 	P-F 	G 	G 	 	G 	 	 	
Hedge mustard 
Sisymbrium officinale 	 	 	G 	G 	G(s)	G 	G 	G 	F-G 	P-G 	G 	F-G 	F 	 	
Henbit 
Lamium amplexicaule 	F-G 	 	G 	G 	G 	G 	F 	F 	G 	 	F 	P-F 	 	F-G 	
Mayweed chamomile 
Anthemis cotula 	G 	G 	G 	G 	F-G 	G 	P-F 	P-F 	F 	F-G 	G 	F-G 	 	P 	
Mustard 
Brassica spp. 	F 	 	G 	G 	G(s)	G 	G 	G 	F-G 	P-G 	G 	F-G 	P-F 	F-G 	
Pineappleweed 
Matricaria matricarioides 	 	 	F 	 	F-G 	G 	F 	 	F 	G 	G 	G 	 	 	
Prickly lettuce 
Lactuca serriola 	G 	G 	G(s)	G(s)	G(s)	G 	G 	G 	G 	G 	P-G 	F-G 	G 	 	
Prostrate knotweed 
Polygonum aviculare 	F-G 	F-G 	F 	F 	G 	G 	P-F 	P-F 	G 	 	F 	F-G 	F 	 	
Red sorrel 
Rumex acetosella 	 	P 	P 	 	 	 	F(s) 	F(s) 	F-G 	F-G 	 	F(s) 	 	 	
Redroot pigweed 
Amaranthus retroflexus 	 	 	 	 	G 	G 	G 	G 	G 	P-G 	F 	F-G 	 	G 	
Sharppoint fluvellin 
Kickxia elatine 	 	G(s)	P 	 	G 	G 	P 	P 	P 	 	G(s)	P-F 	 	P 	
Shepherdspurse 
Capsella bursa-pastoris 	F-G 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	F-G 	P-G 	F 	F-G 	 	G 	
Smartweed 
Polygonum spp. 	F 	F-G 	F 	 	G 	G 	F-G 	F 	G 	F 	F 	G 	 	 	
Sowthistle 
Sonchus spp. 	G 	G 	G 	G 	G 	G 	G 	G 	G 	G 	F 	G 	 	 	
Speedwell 
Veronica spp. 	 	G 	P 	F-G 	G 	G 	P 	P 	P-F 	P-F 	F 	F 	F 	G 	
Spotted catsear Hypochaeris radicata 	 	G(s)	G(s)	G(s)	G(s)	G 	G 	G 	G 	G 	 	G(s)	 	 	
Sticky chickweed 
Cerastium viscosum 	G 	P 	G 	G 	G 	G 	P-F 	P-F 	F 	 	 	P-F 	G 	 	
Toad rush 
Juncus bufonius 	 	 	G 	 	G 	G 	G 	G 	 	 	 	 	 	 	
Vetch 
Vicia spp. 	 	 	P 	P 	G 	G 	G 	G 	G 	G 	F-G 	F-G 	 	 	
Wild carrot 
Daucus carota 	 	P 	P 	P 	G(s) 	F-G 	P-F 	P-F 	P-F 	F(s) 	F-G 	F(s) 	P 	P 	
Wild radish 
Raphanus raphanistrum 	 	 	G(s)	G(s)	G(s)	G 	G 	G 	F-G 	P-G 	F 	F-G 	 	F-G 	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage

Bentgrass―Grass Weeds

Weeds	pendimethalin 

	S-metolachlor 

	S -dimethenamid 
	oxyfluorfen 

	diuron 

	metribuzin 

	ethofumesate 

	glufosinate 

	paraquat 

	glyphosate 
	
Annual bluegrass―resistant 
Poa annua 	G 	F 	F 	F 	P-F 	F 	P-F 	F 	G 	G 	
Annual bluegrass―susceptible 
Poa annua 	G 	F-G 	F-G 	F 	G 	F 	G 	F 	G 	G 	
Annual bromes 
Bromus spp. 	P-F 	P-G 	P-G 	P-F 	P 	F 	F-G 	P-G 	G 	G 	
Italian ryegrass―resistant Lolium multiflorum	G 	G 	G 	P-F 	P-F 	F-G 	P 	P-F 	G 	G 	
Italian ryegras―susceptible 
Lolium multiflorum	G 	G 	G 	P-F 	F-G 	F-G 	P 	P-F 	G 	G 	
Barnyardgrass 
Echinochloa crus-galli 	 	 	 	 	 	 	 	 	G 	G 	
California brome
 Bromus carinatus 	F(s) 	F(s) 	F(s) 	F(s) 	P 	F(s) 	F-Gs 	P-F(s) 	G(s)	G 	
Common velvetgrass 
Holcus lanatus 	 	 	 	 	 	 	 	 	 	G 	
Crabgrass 
Digitaria spp. 	 	 	 	 	 	 	 	 	G 	G 	
Foxtail 
Setaria spp. 	 	 	 	 	 	 	 	 	G 	G 	
German velvetgrass 
Holcus mollis 	P 	P 	P 	P 	P 	P 	 	 	 	G 	
Mannagrass 
Glyceria occidentalis 	 	 	 	 	 	 	P-F 	F 	G 	G 	
Quackgrass 
Elytrigia repens 	P 	P 	P 	P 	P 	P 	 	 	F(s) 	G 	
Rattail fescue 
Vulpia myuros 	G 	G 	G 	F-G 	G 	F 	F-G 	P-F 	G 	G 	
Roughstalk bluegrass 
Poa trivialis 	G(s)	F(s) 	F(s) 	F(s) 	F(s) 	F(s) 	F(s) 	F-G 	G(s)	G 	
Volunteer crop seedlings 	F-G 	F-G 	F-G 	P-F 	P-G 	P-G 	F 	 	G 	G 	
Wild oat 
Avena fatua 	P-F 	P-F 	F 	P-F 	P 	P-F 	F-G 	 	G 	G 	
Witchgrass 
Panicum capillare 	 	 	 	 	 	 	 	 	G 	G 	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage

Orchardgrass―Broadleaf Weeds

Weeds	pendimethalin 
	oxyfluorfen 

	diuron 

	metribuzin 

	paraquat 

	glyphosate
	2,4‑D
	MCPA
	dicamba 

	clopyralid 
	tribenuron-methyl 

	bromoxynil 

	fluroxypyr 

	carfentrazone 

Bedstraw 
Galium aparine 	 	G 	P 	P 	F-G 	G 	P-F 	P-F 	F 	P-F 	 	P-F 	F-G 	G 	
Bittercress 
Cardamine spp. 	 	G 	G 	G 	G 	G 	G 	G 	F-G 	P-G 	G 	F-G 	 	G 	
Broadleaf plantain 
Plantago major 	 	 	P 	 	 	G 	G 	G 	F 	 	 	 	 	 	
Buckhorn plantain 
Plantago lanceolata 	 	 	P 	 	 	G 	G 	G 	F 	 	 	 	 	 	
Bull thistle 
Cirsium vulgare 	 	G(s) 	G(s) 	G(s) 	G(s) 	G 	G 	G 	G 	G 	 	G 	 	 	
Canada thistle 
Cirsium arvense 	P 	P 	P 	P 	P 	F-G 	F-G 	F 	F-G 	G 	F-G 	P 	P-F 	 	
Common chickweed 
Stellaria media 	G 	P 	G 	G 	G 	G 	P-F 	P-F 	F-G 	F-G 	G 	P-F 	G 	 	
Common dandelion 
Taraxacum officinale 	 	G(s) 	G(s) 	G(s) 	G(s) 	G 	G 	G 	F-G 	G 	 	G(s) 	 	 	
Common groundsel 
Senecio vulgaris 	P 	G 	F 	F 	G(s) 	G 	F-G 	F-G 	F-G 	G 	G 	P-G 	 	 	
Common lambsquarters Chenopodium album 	 	 	 	 	G 	G 	G 	G 	G 	P-G 	G 	G 	 	G 	
Field bindweed 
Convolvulus arvensis 	 	 	 	 	 	F-G 	F-G 	F-G 	F-G 	P-F 	 	P-F 	 	 	
Filaree 
Erodium spp. 	 	G 	F 	G 	G 	G 	G 	G 	G 	P-F 	 	G 	 	F-G 	
Geranium 
Geranium spp. 	 	 	G 	G 	G 	G 	F-G 	F-G 	F-G 	 	F 	 	 	 	
Hawksbeard 
Crepis spp. 	 	G(s) 	G(s) 	G(s) 	G(s) 	G 	P-F 	P-F 	G 	G 	 	G 	 	 	
Hedge mustard 
Sisymbrium officinale 	 	 	G 	G 	G(s) 	G 	G 	G 	F-G 	P-G 	G 	F-G 	F 	 	
Henbit 
Lamium amplexicaule 	F-G 	 	G 	G 	G 	G 	F 	F 	G 	 	F 	P-F 	 	F-G 	
Mayweed chamomile 
Anthemis cotula 	G 	G 	G 	G 	F-G 	G 	P-F 	P-F 	F 	F-G 	G 	F-G 	 	P 	
Mustard 
Brassica spp. 	F 	 	G 	G 	G(s) 	G 	G 	G 	F-G 	P-G 	G 	F-G 	P-F 	F-G 	
Pineappleweed 
Matricaria matricarioides 	 	 	F 	 	F-G 	G 	F 	 	F 	G 	G 	G 	 	 	
Prickly lettuce 
Lactuca serriola 	G 	G 	G(s) 	G(s) 	G(s) 	G 	G 	G 	G 	G 	P-G 	F-G 	G 	 	
Prostrate knotweed 
Polygonum aviculare 	F-G 	F-G 	F 	F 	G 	G 	P-F 	P-F 	G 	 	F 	F-G 	F 	 	
Red sorrel 
Rumex acetosella 	 	P 	P 	 	 	 	P-F 	P-F 	F-G 	F-G 	 	P-F 	 	 	
Redroot pigweed 
Amaranthus retroflexus 	 	 	 	 	G 	G 	G 	G 	G 	P-G 	F 	F-G 	 	G 	
Sharppoint fluvellin 
Kickxia elatine 	 	G(s) 	P 	 	G 	G 	P 	P 	P 	 	G(s) 	P-F 	 	P 	
Shepherdspurse 
Capsella bursa-pastoris 	F-G 	G(s) 	G(s) 	G(s) 	G(s) 	G 	G 	G 	F-G 	P-G 	F 	F-G 	 	G 	
Smartweed 
Polygonum spp. 	F 	F-G 	F 	 	G 	G 	F-G 	F 	G 	F 	F 	G 	 	 	
Sowthistle 
Sonchus spp. 	G 	G 	G 	G 	G 	G 	G 	G 	G 	G 	F 	G 	 	 	
Speedwell 
Veronica spp. 	 	G 	P 	F-G 	G 	G 	P 	P 	P-F 	P-F 	F 	F 	F 	G 	
Spotted catsear Hypochaeris radicata 	 	G(s) 	G(s) 	G(s) 	G(s) 	G 	G 	G 	G 	G 	 	G(s) 	 	 	
Sticky chickweed 
Cerastium viscosum 	G 	P 	G 	G 	G 	G 	P-F 	P-F 	F 	 	 	P-F 	G 	 	
Toad rush 
Juncus bufonius 	 	 	G 	 	G 	G 	G 	G 	 	 	 	 	 	 	
Vetch 
Vicia spp. 	 	 	P 	P 	G 	G 	G 	G 	G 	G 	F-G 	F-G 	 	 	
Wild carrot 
Daucus carota 	 	P 	P 	P 	G(s) 	F-G 	P-F 	P-F 	P-F 	F(s) 	F-G 	Fs 	P 	P 	
Wild radish 
Raphanus raphanistrum 	 	 	G(s) 	G(s) 	G(s) 	G 	G 	G 	F-G 	P-G 	F 	F-G 	 	F-G 	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage

Orchardgrass―Grass Weeds

Weeds	pendimethalin 

	S-metolachlor 

	S -dimethenamid 
	flufenacet + metribuzin 

	oxyfluorfen 

	diuron 

	metribuzin 

	pronamide 

	glufosinate 

	paraquat 

	glyphosate 
	
Annual bluegrass―resistant 
Poa annua 	G 	F 	F 	G 	P-F 	P-F 	F 	F-G 	F 	G 	G 	
Annual bluegrass―susceptible
Poa annua 	G 	F-G 	F-G 	G 	P-F 	G 	F 	G 	F 	G 	G 	
Annual bromes 
Bromus spp. 	P-F 	P-G 	P-G 	P-G 	P-F 	P 	F 	F-G 	P-G 	G 	G 	
Italian ryegrass―resistant Lolium multiflorum	G 	G 	G 	G 	P-F 	P-F 	F-G 	F 	P-F 	G 	G 	
Italian ryegrass―susceptible 
Lolium multiflorum	G 	G 	G 	G 	P-F 	F-G 	F-G 	F 	P-F 	G 	G 	
Barnyardgrass 
Echinochloa crus-galli 	 	 	 	 	 	 	 	 	 	G 	G 	
Bentgrass 
Agrostis spp. 	G(s) 	G(s) 	G(s) 	G(s) 	G(s) 	G(s) 	G(s) 	G(s) 	F(s) 	G(s) 	G 	
California brome 
Bromus carinatus 	F(s) 	F(s) 	F(s) 	F(s) 	F(s) 	P 	F(s) 	G(s) 	P-F 	G(s) 	G 	
Common velvetgrass 
Holcus lanatus 	 	 	 	 	 	 	 	 	 	 	G 	
Crabgrass 
Digitaria spp. 	 	 	 	 	 	 	 	 	 	G 	G 	
Foxtail 
Setaria spp. 	 	 	 	 	 	 	 	 	 	G 	G 	
German velvetgrass 
Holcus mollis 	P 	P  	P 	P 	P 	P 	P 	 	 	G 		
Mannagrass 
Glyceria occidentalis 	 	 	 	 	 	 	 	 	F 	G 	G 	
Quackgrass 
Elytrigia repens 	P 	P  	P 	P 	P 	P 	P	P-F 	 	F(s) 	G 	
Rattail fescue 
Vulpia myuros 	G 	G 	G 	G 	F-G 	G 	F 	G 	P-F 	G 	G 	
Roughstalk bluegrass 
Poa trivialis 	G(s) 	F(s) 	F(s) 	G(s) 	F(s) 	F(s) 	F(s) 	 	F-G 	G(s) 	G 	
Volunteer crop seedlings 	F-G 	F-G 	F-G 	F-G 	P-F 	P-G 	P-G 	P-F 	 	G 	G 	
Wild oat 
Avena fatua 	P-F 	P-F 	F 	F-G 	P-F 	P 	P-F 	P-F 	 	G 	G 	
Witchgrass 
Panicum capillare 	 	 	 	 	 	 	 	 	 	G 	G 	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage

Kentucky Bluegrass―Broadleaf Weeds

Weeds	pendimethalin	oxyfluorfen
	paraquat
	glyphosate
	2,4-D
	MCPA
	dicamba
	clopyralid 
	tribenuron-methyl 

	bromoxynil 
	fluroxypyr 
	quinclorac 
	carfentrazone 
	primisulfuron-methyl 

Bedstraw 
Galium aparine 	 	G 	F-G 	G 	P-F 	P-F 	F 	P-F 	 	P-F 	F-G 	F-G 	G 	 	
Bittercress 
Cardamine spp. 	 	G 	G 	G 	G 	G 	F-G 	P-G 	G 	F-G 	 	 	G 	 	
Blue mustard 
Chorispora tenella 	G 	G 	F-G 	 	F 	 	 	P-G 	G 	G 	G 	 	G 	G 	
Buckhorn plantain 
Plantago lanceolata 	 	 	 	G 	G 	G 	F 	 	 	 	 	 	 	 	
Bull thistle 
Cirsium vulgare 	 	G(s) 	G(s) 	G 	G 	G 	G 	G 	 	G 	 	 	 	 	
Canada thistle 
Cirsium arvense 	 	P 	P 	F-G 	F-G 	F-G 	F-G 	G 	F-G 	P-F 	P-F 	 	 	 	
Common dandelion 
Taraxacum officinale 	 	G(s) 	G(s) 	G 	G 	G 	F-G 	G 	 	G(s) 	 	 	 	 	
Common groundsel 
Senecio vulgaris 	P 	G 	G(s) 	G 	F-G 	F-G 	F-G 	G 	G 	P-G 	 	 	 	 	
Common lambsquarters Chenopodium album 	 	 	G 	G 	G 	G 	G 	P-G 	G 	G 	 	 	G 	 	
Fiddleneck 
Amsinckia intermedia 	F 	G 	F 	 	 	 	 	P-F 	G 	G 	P-F 	 	F 	 	
Field bindweed 
Convulvulus arvensis 	 	 	 	F-G 	F-G 	F-G 	F-G 	P-F 	 	P-F 	 	G 	 	 	
Field pennycress 
Thlaspi arvense 	G 	G 	F-G 	 	G 	G 	F 	P-G 	G 	F-G 	G 	 	G 	G 	
Filaree 
Erodium spp. 	 	G 	G(s) 	G 	G 	G 	G 	P-F 	 	G 	 	 	F-G 	 	
Flixweed 
Descurainia sophia 	G 	G 	F-G 	G 	G 	G 	F 	P-G 	G 	F-G 	G 	 	G 	G 	
Henbit 
Lamium amplexicaule 	F-G 	 	G 	G 	F 	F 	G 	 	F 	P-F 	 	 	F-G 	 	
Jagged chickweed Holosteum umbellatum 	G 	 	G 	G 	 	 	F 	 	F 	P-F 	 	 	 	G 	
Kochia 
Kochia scoparia 	F 	P-F 	 	G 	F 	P-F 	G 	 	 	 	F-G 	 	F-G 	 	
Mayweed chamomile 
Anthemis cotula 	G 	G 	F-G 	G 	P-F 	P-F 	F 	F-G 	G 	F-G 	 	 	P 	 	
Prickly lettuce 
Lactuca serriola 	G 	G 	G(s) 	G 	G 	G 	G 	G 	P-G 	F-G 	G 	 	 	 	
Prostrate knotweed 
Polygonum aviculare 	F-G 	F-G 	G(s) 	G 	P-F 	P-F 	F-G 	 	F 	F-G 	F 	 	 	 	
Redroot pigweed 
Amaranthus retroflexus 	 	 	G 	G 	G 	G 	G 	P-G 	G 	F-G 	 	 	G 	 	
Shepherdspurse 
Capsella bursa-pastoris 	F-G 	G(s) 	G(s) 	G 	G 	G 	F-G 	P-G 	F 	F-G 	 	 	F-G 	 	
Smartweed 
Polygonum spp. 	F 	F-G 	G 	G 	G 	F 	G 	F 	F 	G 	 	 	 	 	
Sowthistle 
Sonchus spp. 	G 	G 	G 	G 	G 	G 	G 	G 	F 	G 	 	 	 	 	
Sticky chickweed 
Cerastium viscosum 	G 	P 	G 	G 	P-F 	P-F 	F 	 	 	P-F 	G 	 	 	 	
Tansy mustard 
Descurainia pinnata 	G 	G 	F-G 	G 	G 	F 	 	P-G 	F 	G 	G 	 	G 	G 	
Tumble mustard 
Sisymbrium altissimum 	G 	G 	F-G 	G 	G 	G 	F 	P-G 	F 	F-G 	G 	 	G 	G 	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage

Kentucky Bluegrass―Grass Weeds

Weeds	pendimethalin 
	S-metolachlor 

	S-dimethenamid 
	flufenacet + metribuzin 

	oxyfluorfen 

	diuron 

	metribuzin 

	terbacil 

	ethofumesate 

	glufosinate 

	paraquat 

	glyphosate
	primisulfuron-methyl 

Annual bluegrass―resistant 
Poa annua 	G 	F 	F 	G 	P-F 	P-F 	F 	F-G 	P-F 	F 	G 	G 	P 	
Annual bluegrass―susceptible 
Poa annua 	G 	F-G 	G 	G 	P-F 	G 	F 	F-G 	G 	F 	G 	G 	P 	
Italian ryegrass―resistant Lolium multiflorum 	G 	G 	G 	G 	P-F 	 P-F	 F-G	F-G 	 	P-F 	G 	G 	 	
Italian ryegrass―susceptible 
Lolium multiflorum	G	G 	G 	G 	P-F	F-G	F-G 	F-G 		P-F	G	G 		
Barnyardgrass 
Echinochloa crus-galli 	 	 	 	 	 	 	 	 	 	 	G 	G 	 	
California brome 
Bromus carinatus 	F 	F 	F 	F-G 	 	P 	P 	F-G 	G 	P-F 	G(s) 	G 	 	
Crabgrass 
Digitaria spp. 	 	 	 	 	 	 	 	 	 	 	G 	G 	 	
Downy brome 
Bromus tectorum 	F-G 	F-G 	F-G 	 	F 	P 	F 	F-G 	P-F 	F 	G 	G 	F-G 	
Foxtail 
Setaria spp. 	 	 	 	 	 	 	 	 	 	 	G 	G 	 	
Other bromes 
Bromus spp. 	P-F 	P-G 	P-G 	P-G 	P-F 	P 	F 	F-G 	G 	 	G 	G 	 	
Quackgrass 
Elytrigia repens 	P 	P 	P 	P 	P 	P 	P 	P 	 	 	F(s) 	G 	F-G 	
Rattail fescue 
Vulpia myuros 	G 	G 	G 	G 	F-G 	G 	F 	F-G 	F-G 	P-F 	G 	G 	P-F 	
Volunteer crop seedlings 	F-G 	F-G 	F-G 	F-G 	P-F 	P-G 	P-G 	F-G 	 	 	G 	G 	 	
Wild oat 
Avena fatua 	P-F 	P-F 	F 	F-G 	P-F 	 	P-F 	 	F-G 	 	G 	G 	F-G 	
P = poor control; F = fair control; G = good control; s = rating based on seedling growth stage