A guide to a better potato

National Potato Guide 2025

Glacier FarmMedia’s 2025 National Potato Guide is the place to learn about the latest trends in potato crop management. Learn about the future of genetics and breeding, soil health and control of weed and insect pests. Check out our crop protection guides including for seed treatment, insect, weed and fungal infection control. Make sure to follow product labels.

Crop Protection Details Disease Control

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wdt_ID	Controller	COMMERCIAL NAME	Active Ingredient	Group(1)	Preplant	Pre-emergence	Pre-emergence (cracked soil)	Early post-emergence	Post-emergence	Before harvest(2)	Crab grass	Barnyard grass	Wild oats	Witchgrass	Fall panicum	Proso millet	Foxtails	Polygonum (Smartweed)	Lamb’s quarters	Wild mustard	Pigweed	Common ragweed	Yellow nutsedge	Quackgrass	Perennial sow-thistle	Canada thistle	Flea beetle	Potato leafhopper	Colorado	Aphids(3)	European corn borer	Other lepidopterous	Tarnished plant bug	Delay before harvest (days)(4)	Security delay after treatment (hours)(5)	Maximum number of applications (6)	Fusarium rot (Fusarium spp.)	Pink rot (Phytophthora erythroseptica)	Blackleg, bacterial soft rot (Erwinia)	Late blight (Phytophthora infestans)	Rhizoctonia canker or black scurf (Rhizoctonia solani)	Silver scurf	Early blight (Alternaria solani)	Late blight	White mould	Pink rot	Seed piece decay, leak	Fusarium rot (Fusarium spp.)	Grey mould (Botrytis cinerea)	Late blight on tubers	Rhizoctonia canker	Black dot	Brown leaf spot	Silver scurf	Security delay (hours)(7)	Delay before harvest (days)(3)	Maximum number of applications(4)	Interval between applications (days)(5)	Fusarium rot	Seed piece decay and leak	Pink rot	Late blight	Rhizoctonia canker (black scurf)	Silver scurf	Verticillium wilt	Colorado potato beetle	Aphids	Leafhopper	Wireworm	Flea beetle	Nematodes	Seed piece treatment	In-furrow treatment
1	Herbicides	Afolan F³		7		X					F	F	P	P	F	P	F	E	E	P	G	G	P	P	P	P
2	Herbicides	Beloukha		26						X	E	E	E	E	E	E	E	E	E	E	E	E	P	P	F	P
3	Herbicides	Biolink EC		26		X					E	E	E	–	–	–	–	–	–	–	E	–	E	–	–	–
4	Herbicides	Aim EC³		14	X					X	–	–	–	–	–	–	–	E7	E	–	E	–	–	–	–	–
5	Herbicides	Boundary LQD⁶		15 + 5		X					E	E	P	E	E	P	E	–	–	–	E	–	–	–	–	–
6	Herbicides	Chateau WDG⁴ / Flumioxazin 51 WDG		14		X					P	P	P	P	P	P	F	–	E	–	E	E	–	–	–	–
7	Herbicides	Chateau EZ⁴		14		X					P	P	P	P	P	P	–	–	E	–	E	E	–	–	–	–
8	Herbicides	Dual II Magnum / Metallica		15	X	X					E	E	P	E	E	P	E	P	–	P	F	P	E	P	P	P
9	Herbicides	Dual II Magnum + Lorox		15 + 7		X					E	E	P	E	E	P	E	E	E	P	E	G	F	P	P	P
10	Herbicides	Eptam EC³		8	X				X⁸		E	E	E	E	E	–	E	F	F	P	E	F	E	G	P	P
11	Herbicides	Frontier Max		15		X					E	E	–	E	E	–	E	P	P	P	E	P	F	P	P	P
12	Herbicides	Glyphosate / Roundup brands		9	X		X				E	E	E	E	E	E	E	E	E	E	E	E	E	E	E	E
13	Herbicides	Komodo		15	X	X					E	E	P	E	E	P	E	P	–	P	F	P	E	P	P	P
14	Herbicides	Lorox L³		7		X					E	E	P	–	–	–	E	E	E	P	E	B	–	P	P	P
15	Herbicides	Prism SG		2					X		P	E	P	E	E	P	E	–	F	G	E	P	–	G	–	–
16	Herbicides	Reglone² / Desica² / Armory 240²		22	X	X				X	E	E	E	E	E	E	E	E	E	E	E	E	P	P	F	P
17	Herbicides	Reflex 6		14		X					–	–	–	–	–	–	–	E	E	E	E	E	–	–	–	–
18	Herbicides	Select / Arrow 240 EC /  Centurion / Shadow RTM / Statue		1					X		E	E	E	E	E	E	E	P	P	P	P	P	P	E	P	P
19	Herbicides	Sencor³		5	X	X	X	X			G	G	–	G	G	–	G	E	E	E	E	E	P	P	P	P
20	Herbicides	Sencor + Dual II Magnum		5 + 15	X	X					E	E	E	E	E	–	E	E	E	E	E	E	F	P	P	–
21	Herbicides	Sencor / Tricor 75 DF + Eptam		5 + 8	X						F	E	E	E	F	–	E	G	E	E	E	E	F	P	P	P
22	Herbicides	Tricor 75 DF + Eptam		5 + 8	X						F	E	E	E	F	–	E	G	E	E	E	E	F	P	P	P
23	Herbicides	Strim MTZ / Flag LQD		5 + 15	X	X					E	E	E	E	E	–	E	E	E	E	E	E	F	–	–	–
24	Herbicides	Tricor LQ		5	X	X	X	X			G	G	–	G	G	–	G	E	E	E	E	E	P	P	P	P
25	Herbicides	Venture L³		1					X		E	E	E	E	E	E	E	P	P	P	P	P	P	E	P	P
26	Herbicides	Zidua		15		X					G	E	P	-	G	-	E	-	P	-	G	G	-	-	-	-
27	Insecticides	Actara	thiamethoxam	4A																								X	X	X				7	12	1
28	Insecticides	Admire 240 / Alias 240 SC	imidaclorid	4A																								X	X	X				7	24	1
29	Insecticides	Agri-Mek SC⁷	abamectin	6																									X					14	12	2
30	Insecticides	Assail 70 WP	acetamiprid	4																									X	X				7	12	2
31	Insecticides	Bartlett superior 70 oil / Superior 70 oil	mineral oil	–																										X				14	12	10
32	Insecticides	Beleaf 50SG⁷	flonicamid	29																										X				7	12	3
33	Insecticides	Cimegra	broflanilide	30																									X					14	12	2
34	Insecticides	Clutch 50 WDG / Clothianidin	chlothianidin	4A																								X	X	X				14	12	3
35	Insecticides	Closer	sulfoxaflor	4C																								X		X			X	7	12	2
36	Insecticides	Coragen MaX	chlorantraniliprole	28																									X		X	X		1	12	4
37	Insecticides	Cormoran	novaluron + acetamiprid	4 + 15																								X	X	X	X	X		7	12	2
38	Insecticides	Cygon 480 AG / Cygon 480 EC  Lagon 480 E	dimethoate	1B																								X		X				7	12	2
39	Insecticides	Decis 100 EC⁸	deltamethrin	3																							X	X	X	X	X		X	1	12	3
40	Insecticides	Delegate	spinetoram	5																									X		X	X		7	12	3
41	Insecticides	Dibrom	naled	1B																							X	X	X					4	48	2
42	Insecticides	Entrust	spinosad	5																									X		X			7	12	2
43	Insecticides	Exirel	cyantraniliprole	28																							X		X	X	X	X		7	12	4
44	Insecticides	Harvanta	cyclaniliprole	28																									X			X		14	12	2
45	Insecticides	Imidan 50 W / Imidan 70 WP	phosmet	1B																							X	X	X	X				7	120	5
47	Insecticides	Malathion / Fyfanon 50 EC	malathion	1B																								X	X	X				3	24	1
48	Insecticides	Minecto Pro	abamectin + cyantraniliprole	6 + 28																							X		X		X			14	12	2
49	Insecticides	Movento⁷ 240 SC	spirotetramat	23																										X				7	12	2
50	Insecticides	Orthene 75 SP	acephate	1B																							X	X		X			X	21	24	4
52	Insecticides	Pounce 384EC / Ambush 500 EC	permethrin	3																							X	X	X		X	X	X	1	12	4
53	Insecticides	Perm-Up	permethrin	3																							X	X	X		X	X	X	1	12	4
54	Insecticides	Rimon 10 EC	novaluron	15																									X		X			14	12	2
55	Insecticides	Sefina	afidopyropen	9D																										X				7	12	4
56	Insecticides	Sivanto Prime	flupyradifurone	4D																								X	X	X				7	12	2
57	Insecticides	Success	spinosad	5																									X		X			7	12	1-3
58	Insecticides	Surround WP	kaolin	–																								X						0	0	–
59	Insecticides	vayego 200 SC	tetraniliprole	28																							X		X	X	X			14	12	2
60	Insecticides	Vydate	oxamyl	1A																							X	X	X	X			X	7	12-72	2
61	Post-Harvest Treatment	Bio-Safe 10 LP	pseudomonas syringae	–																																	X					X
62	Post-Harvest Treatment	Confine / Confine Extra	phosphorus acid	33																																		X		X		X
63	Post-Harvest Treatment	Mertect SC	thiabendazole	1																																	X				X	X
64	Post-Harvest Treatment	Phostrol / Rampart	phosphorus acid	33																																		X		X
65	Post-Harvest Treatment	Stadium	azoxystrobin + fludioxonil + difenoconazole	11 + 12 + 3																																	X					X
66	Post-Harvest Treatment	Storox	hydrogen peroxide	–																																	X		X			X
67	Fungicides	Allegro 500F	fluazinam	29																																								X	X										24	14	10	7-10
68	Fungicides	Aprovia Top	benzovindiflupyr + difenoconazole	7 + 3																																							X										X		12	14	2	7-14
69	Fungicides	Bravo ZN	chlorothalonil	M - 5																																							X	X					X						48	2	3	7-10
70	Fungicides	Cantus	boscalid	7																																							X												12	30	4	14
71	Fungicides	Cevya	mefentrifluconazole	3																																							X									X	X		12	7	4	7-14
72	Fungicides	Confine Extra / Winfield Phosphite Extra	phosphorus acid	33																																										X				X				X⁸	4	1	5	14
73	Fungicides	Copper 53 W / Cuivre 53W	tribasic copper	M																																							X	X											48	1	10	5
74	Fungicides	Copper spray fungicide	oxychloride	M																																							X	X											48	1	10	7-10
75	Fungicides	Cueva	copper octanoate	M																																							X	X											4	1	15	5-10
76	Fungicides	Curzate (+ Manzate)	cymoxanil + mancozeb	27 + M																																								X											24	8	4	5-7
77	Fungicides	Diplomat 5 SC	polyoxin D zinc salt	19																																							X												0	1	3	7-14
78	Fungicides	Penncozeb	mancozeb	M3																																							X	X											24	1	–	5-10
79	Fungicides	Double Nickel 55 WDG	bacillus amyloliquefaciens	44																																							X		X						X⁶				–	–	–	3-10
80	Fungicides	Echo 90 DF / Echo 720 / Echo NP / Echo 90 WSP	chlorothalonil	M																																							X	X					X						48	1	–	7-10
81	Fungicides	Evito 480 SC	fluoxastrobin	11																																								X											12	7	3	7
82	Fungicides	Forum  (+ Bravo / Polyram DF / Dithane)	dimethomorph	40																																								X						X					12	4	3	5-10
83	Fungicides	Gavel	mancozeb + zoxamide	22 + M3																																							X	X											12	3	3	7
84	Fungicides	Kocide 101 / 1000 / 2000 / Parasol FL / WP	copper hydroxide	M																																							X	X						X					48	1	10	7-10
85	Fungicides	Lifegard WG	bacillus mycoides isolate	M																																							X	X	X										–	0	–	7
86	Fungicides	Luna Tranquility	fluopyram + pyrimethanil	7 + 9																																							X		X							X	X		12	7	5	7-14
87	Fungicides	Maestro 80 DF	captan	M																																							X	X											48	7	7	7-10
88	Fungicides	Manzate Max	mancozeb	M3																																							X	X											24	1	–	5-10
89	Fungicides	Manzate Pro-Stick	mancozeb	M3																																							X	X											24	1	–	5-10
90	Fungicides	Minuet	bacillus subtilis	BM02																																										X		X			X				4	0	6	7-10
91	Fungicides	Miravis Duo	pydiflumetofen + difenoconazole	7 + 3																																							X		X				X				X		12	14	3	7-14
92	Fungicides	Orondis Ultra	mandipropamid + oxathiapiprolin	40 + 49																																								X											12	14	4	7-14
93	Fungicides	Parasol (FL.WG, or WP)	copper hydroxide	M1																																							X	X											48	2	10	7-10
94	Fungicides	Phostrol	phosphorus acid	33																																								X		X									12	0	7	7-14
95	Fungicides	Proline GOLD⁹	fluopyram + prothioconazole	7 + 3																																							X		X							X	X		12	14	2	10-14
96	Fungicides	Propulse¹⁰	fluopyram + prothioconazole	7 + 3																																							X		X							X	X		12	14	2	10-14
97	Fungicides	Presidio / Fluopicolide 4 SC (+ Bravo)	fluopicolid	43																																								X											48	7	4	7-10
98	Fungicides	Quadris Top	azoxystrobin + difenoconazole	11 + 3																																							X		X							X	X		12	14	3	7-14
99	Fungicides	Quash / Quash SC	metconazole	3																																							X		X										12	1	3	7-10
100	Fungicides	Rampart	phosphorus acid	33																																							X			X				X					4	0	5	3
101	Fungicides	Ranman 400 SC / Cyazofamid 400SC	cyazofamid	21																																								X						X					12	7	6	7
102	Fungicides	Reason (+ Bravo)	fenamidone	11																																							X	X											48	14	6	7-10
103	Fungicides	Revus	mandipropamid	40																																								X											12	14	4	7-10
104	Fungicides	Ridomil Gold 480 SL	metalaxyl-M and S-isomer	4																																							X	X		X	X			X					12	14	3	14
105	Fungicides	Scala SC	pyrimethanil	9																																							X												12	7	6	7-14
106	Fungicides	Sercadis	fluxapyroxad	7																																							X		X						X⁶				12	7	3	7-14
107	Fungicides	Serenade OPTI	bacillus subtilis	BM02																																							X		X									X	0	0	6	7-10
108	Fungicides	Serifel	bacillus amyloliquefaciens	BM02																																							X												4	0	–	7-10
109	Fungicides	Tanos	famoxadone + cymoxanil	11 + 27																																							X	X											24	14	3	12
110	Fungicides	Veltyma	mefentrifluconazole + pyraclostrobin	11 + 3																																							X									X	X		12	7	2	7-14
111	Fungicides	Vertisan	penthiopyrade	7																																							X						X		X⁶				12	7	3	7-14
112	Fungicides	Zampro	ametoctradin + dimethomorph	40 + 45																																								X						X					12	4	3	5-10
113	Seed Pieces & In-Furrow Treatments	Admire 240 / SPT	imidacloprid	4A																																																														X	X	X		X		Y	N
114	Seed Pieces & In-Furrow Treatments	Actara 240SC	thiamethoxam	4A																																																														X	X	X				Y	Y
115	Seed Pieces & In-Furrow Treatments	Alias 240 SC	imidacloprid	4A																																																														X	X	X		X		Y	Y
116	Seed Pieces & In-Furrow Treatments	Cimegra	broflanilide	30																																																																	X			N	Y
117	Seed Pieces & In-Furrow Treatments	Clutch 50 WDG / Chlothianidin	chlothianidin	4A																																																														X						N	Y
118	Seed Pieces & In-Furrow Treatments	Cruiser Maxx Potato Extreme	fludioxonil + difenoconazole + thiamethoxam	12 + 3 + 4A																																																							X				X	X		X	X	X				Y	N
119	Seed Pieces & In-Furrow Treatments	Cruiser Maxx Vibrance Potato	fludioxonil + difenoconazole + sedaxane + thiamethoxam	12+3+7+4A																																																							X				X	X		X	X	X		X		Y	N
120	Seed Pieces & In-Furrow Treatments	Dithane M-45 8%	mancozeb	M																																																							X													Y	N
121	Seed Pieces & In-Furrow Treatments	Double Nickel 55 WDG	bacillus amyloliquefaciens	44																																																											X									N	Y
122	Seed Pieces & In-Furrow Treatments	Elatus	benzovindiflupyr+ azoxystrobin	7 + 11																																																											X	X	X							N	Y
123	Seed Pieces & In-Furrow Treatments	Emesto Silver	penflufen + prothiocanazole	7 + 3																																																							X				X	X								Y	N
124	Seed Pieces & In-Furrow Treatments	Ernesto complete	penflufen + prothiocanazole + clothianidin	7+3+4A																																																							X				X	X		X	X	X		X		Y	N
125	Seed Pieces & In-Furrow Treatments	Evito 480 SC (in-furrow)	fluoxastrobin	11																																																											X									N	Y
126	Seed Pieces & In-Furrow Treatments	Heads Up	Saponins from quinoa	–																																																											X									Y	N
127	Seed Pieces & In-Furrow Treatments	Minecto Duo 40WG	thiamethoxam + cyantraniliprole	4A + 28																																																														X	X	X		X		N	Y
128	Seed Pieces & In-Furrow Treatments	Minuet (in-furrow)	bacillus subtilis	BM02																																																							X		X		X									N	Y
129	Seed Pieces & In-Furrow Treatments	Nipsit Inside 600	clothianidin	4A																																																														X	X	X		X		Y	N
130	Seed Pieces & In-Furrow Treatments	Orondis Gold Potato	metalaxyl-M + oxathiapiprolin	4 + 49																																																								X	X											N	Y
131	Seed Pieces & In-Furrow Treatments	Penncozeb 80 WP	mancozeb	M																																																							X													Y	N
132	Seed Pieces & In-Furrow Treatments	Phostrol	phosphites	33																																																									X											N	Y
133	Seed Pieces & In-Furrow Treatments	Presidio	fluopicolide	43																																																									X											N	Y
135	Seed Pieces & In-Furrow Treatments	Quadris	azoxystrobin	11																																																											X	X								N	Y
136	Seed Pieces & In-Furrow Treatments	Reason 500 SC	fenamidone	11																																																										X										Y	N
137	Seed Pieces & In-Furrow Treatments	Revus	mandipropamid	40																																																									X	X										Y	N
138	Seed Pieces & In-Furrow Treatments	Ridomil Gold 480 SL (in-furrow)	metalaxyl-M + S-isomer	4																																																								X	X											N	Y
139	Seed Pieces & In-Furrow Treatments	Salibro	fluazaindolizine	–																																																																			X	N	Y
140	Seed Pieces & In-Furrow Treatments	Senator PSPT	thiophanate-methyl	1																																																							X	X	X			X	X							Y	N
141	Seed Pieces & In-Furrow Treatments	Sercadis	fluxapyroxad	7																																																											X									N	Y
142	Seed Pieces & In-Furrow Treatments	Serifel	bacillus amyloliquefaciens	BM02																																																											X									N	Y
143	Seed Pieces & In-Furrow Treatments	Stargus	bacillus amyloliquefaciens	–																																																									X											N	Y
144	Seed Pieces & In-Furrow Treatments	Thimet 20-G	phorate	1B																																																																	X			N	Y
145	Seed Pieces & In-Furrow Treatments	Titan	chlothianidin	4A																																																														X	X³	X	X	X³		Y	N
146	Seed Pieces & In-Furrow Treatments	Velum Prime	fluopyram	7																																							X^4-5																												X	N	Y
147	Seed Pieces & In-Furrow Treatments	Velum Rise	fluopyram + penflufen	7																																							X^4-5																												X	N	Y
148	Seed Pieces & In-Furrow Treatments	Verimark (in-furrow)	cyantraniliprole	28																																																														X				X		N	Y
149	Seed Pieces & In-Furrow Treatments	Vertisan	penthiopyrade	7																																																											X									N	Y
150	Seed Pieces & In-Furrow Treatments	Vibrance Ultra Potato	sedaxane + mandipropamid + difenoconazole	7 + 40 + 3																																																							X		X	X	X	X								Y	N
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