Table 3 Potato Disease Control

Transcription

1 Table 3 Potato Disease Control Table 3 Potato Disease Control Group Product Rate PHI* Comments Early and Late Blight Control M (chloronitrile) Bravo 500 (chlorothalonil) Echo 90DF (chlorothalonil) Early Blight: 1.6 to 2.4 L/ha (0.6 to 1.0 L/acre Late Blight: 1.2 to 2.4 L/ha (0.5 to 1.0 L/acre) Early Blight: 0.9 to 1.3 kg/ha (400 to 500 g/acre) 1 Apply every 7 to 10 days. Use the higher rate for the 10 day interval. This is the preferred product for Interior areas where early blight is a serious problem. for 48 hours. Late Blight: 0.7 to 1.3 kg/ha (300 to 500 g/acre) Do not apply Echo 90 DF more than 12 times per season. Echo 720 (chlorothalonil) Early Blight: 1.1 L/ha (400 ml/acre) Late Blight: 0.8 to 1.7 L/ha (300 to 700 ml/ acre) M (phthalimide) Maestro 80 DF (captan) 2.5 to 3.75 kg/ha (1.0 to 1.5 L/acre) 7 Use sufficient water volume to obtain thorough coverage. Begin treatment when conditions are favourable for disease. Repeat at 7 to 10 day Do not apply more than 7 times per season. Last Updated: June 06,

2 for 48 hours. Last Updated: June 06,

3 M (dithiocarbamate) Dithane DG Rainshield NT (mancozeb) 1.1 to 2.25 kg/ha (450 to 900 g/acre) 1 Use low rate when plants are 10 to 15 cm high, increase to 1.75 kg/ha (0.7 kg/acre) as plant size increases, and use high rate at row closure. Repeat at 7 to 10 day interval. During periods of wet weather favouring late blight and/or vigorous crop growth, spray intervals may be reduced to 5 to 6 days using the medium rate after row closure until conditions allow return to the regular spray schedule. Dithane F-45 (mancozeb) 1.8 to 3.8 L/ha (0.7 to 1.5 L/acre) 1 Use low rate when plants are 10 to 15 cm high, increase to 3.0 L/ha (1.2 L/acre) as plant size increases, and use high rate at row closure. Repeat at 7 to 10 day During periods of wet weather favouring late blight and/or vigorous crop growth, spray intervals may be reduced to 5 to 6 days using the medium rate after row closure until conditions allow return to the regular spray schedule. Last Updated: June 06,

4 Penncozeb 75DF (mancozeb) Penncozeb 75DF Raincoat (mancozeb) 1.1 to 2.25 kg/ha (450 to 900 g/acre) 1 Apply every 7 to 10 days, shorten to 5 to 6 days if conditions are severe. Apply 1.1 kg/ha when plants are 10 to 15 cm high, increase to 1.75 kg/ ha as plant size increases, and to 2.25 kg/ ha at row closure. Begin applications early using the low rate and increasing as the vines increase in size. for 24 hours. M (dithiocarbamate) Polyram DF (metiram) 1.1 to 1.75 kg/ha (450 to 700 g /acre) 1 Apply at 7 to 10 day intervals using 1.1 to 1.75 kg/ha (0.45 to 0.7 kg/ acre) until plants cover the row. Use 1.10 to 1.75 kg/ha (0.45 to 0.7 kg/acre) at 5 to 7 day intervals starting when plants are 15 cm high and continuing until top killing. Manzate DF (mancozeb) 1.1 to 2.24 kg/ha (450 to 900 g/acre) Apply in 200 to 1000 L/ha (80 to 405 L/acre) of water 1 Apply 1.1 kg/ha when plants are 10 to 15 cm high, increase to 1.75 kg/ ha as plant size increases, and to 2.25 kg/ ha at row closure. Apply at 7 to 10 day During periods of wet weather favourable for Last Updated: June 06,

5 4 M (acylamines/ dithiocarbamate) Ridomil Gold/ Bravo Twin Pak (metalaxyl-m/ chlorothalonil) Ridomil MZ 68 WP (metalaxyl/ mancozeb) See label for specific rates disease development, spray intervals may be reduced to 5 to 6 days. Due to widespread resistance development in BC, these products may not effectively control blight. They are recommended for suppression of leak and pink rot (see leak and pink rot suppression section of this table). Do not contaminate water. Do not use on gravelly soils, soils with a high water table or less than 2% organic matter. Do not tank mix with a top-killer. 11 M2 (strobilurin/ dithiocarbamate) Cabrio Plus (pyraclostrobin/ metiram) 2.25 to 3.35 kg/ha (0.91 to 1.36 kg/ acre) Apply in 200 L/ha (80 L/acre) of water. 3 For early blight apply on a 7 to 14 day interval. For late blight apply on a 7 to 10 day interval. Do not apply more than 3 times per season. for 12 hours. Observe a plantback interval of 14 days for all crops not listed. Crop can be fed or grazed to livestock. Last Updated: June 06,

6 11 (strobilurin) Headline EC (pyraclostrobin) 450 to 670 ml/ha (200 to 270 ml/ acre) 3 For late blight, apply at 5 to 7 day For late blight, tank mix with Bravo 500 or Polyram DF. For early blight at 7 to 14 day No more than two consecutive applications before alternating to a fungicide with a different mode of action. Do not apply more than 3 times per season. for 12 hours. 11 (strobilurin) Reason 500SC (fenamidone) Plus: Dithane DG Rainshield NT 200 ml/ha (81mL/acre) Plus: 1.25 kg/ha (500 g/acre) 14 Begin application when plants are 15 to 20 cm high, or when disease threatens (whichever comes first). Tank mix with Dithane DG or Bravo 500. (mancozeb) Or Or Do not apply more than 6 times per year. Bravo L/ha (500 ml/acre) Observe a 30 day plant back interval for all crops. (chlorothalonil) until residues have dried. 11 U (strobilurin/ miscellaneous) Tanos 50 DF (famoxadone / cymoxanil) 560 to 840 g/ha (224 to 326 g/acre) Apply in at least 250 L/ha (100 L/acre) of water 14 Maximum of 6 applications per year. Make the first application of Tanos following one or two applications of a Last Updated: June 06,

7 preventative, broad spectrum fungicide such as chlorothalonil or mancozeb. Apply at 7 day Observe a minimum plant back interval of one year for crops not on the label. for 24 hours. Harmful to beneficials. Do not apply to stressed plants. 22 (benzamide) Zoxium 80W (zoxamide) 175 g/ha (70 g/acre) 3 Always tank mix with Dithane DG. M (dithiocarbamate) 22 (benzamide) M (dithiocarbamate) Plus: Dithane DG Rainshield NT (mancozeb) Or Zoxium 80W (zoxamide) Plus: Plus: 1.5 kg/ha (600 g/acre) Or 235 g/ha (94 g/acre) Plus: 2.0 kg/ha (800 g/acre) Repeat at 7 day Maximum of 6 applications per season. A 30 day plant back interval (PBI) is required for leafy vegetables and root and tuber vegetables. For all other crops not included on the label, the PBI is 140 days. for 48 hours. Dithane DG Rainshield NT (mancozeb) Last Updated: June 06,

8 22 M (dithiocarbamate/ benzamide) Gavel 75DF (mancozeb / zoxamide) Late blight: 2.25 kg/ha (900 g/acre) Early blight: 1.7 kg/ha (700 g/acre) 3 Repeat at 7 day Maximum of 6 applications per season. A 30 day plant back interval (PBI) is required for leafy vegetables and root and tuber vegetables. For all other crops not included on the label, the PBI should be 140 days. for 48 hours. Last Updated: June 06,

9 M (inorganic) Parasol F (copper hydroxide) 0.8 to 1.8 L/ha (320 to 720 ml/ acre) 1 Combine with 1.75 to 2.25 kg/ha (700 to 900 g/acre) mancozeb 80%. Apply at 7 to 10 day intervals, starting when plants are 15 cm high. Maximum 10 applications per season. Apply at vine kill with a desiccant, or alone after vine kill at 2.4 L/ha (960 ml/acre). This may prevent late blight infection of tubers during harvest. Kocide 2000 (copper hydroxide) 0.8 to 1.6 kg/ha (300 to 350 g/acre) 1 Apply at 7 to 10 day intervals, starting when plants are 15 cm high. Apply 2.4 kg/ha (1 kg/ acre) at vine kill with a desiccant or just prior to harvest. This may reduce Late Blight infection of tubers during harvest. Can be combined with Manzate DF at 1.75 to 2.25 kg/ha (700 to 900 g/acre). Copper Spray (Fixed Copper) Copper Oxy-chloride kg/ha (1.6 kg/ acre) 1 Apply every 7 to 10 days beginning when plants are 10 to 20 cm high, increasing the rate as the vines increase in size. (copper hydroxide) Apply in 1000 L of water per hectare (405 L of water per acre). Last Updated: June 06,

10 Copper 53W (tri-basic copper sulphate) 3.8 kg/ha (1.5 kg/acre) Maximum 10 applications per season. for 48 hours. 1 Apply when plants are 12 to 18 cm high. Repeat at 7 to 10 day Maximum 10 applications per season. Cueva (copper octanoate) Group M1 Use a 0.5% to 2% solution at 470 to 940 L/ha (190 to 380 L/acre) 1 For a 0.5% solution, mix 1 part Cueva to 200 parts water. For a 2% solution, mix 1 part Cueva to 50 parts water. Repeat at 7 to 10 day Repeat at 5 to 7 day intervals following heavy rain or when disease pressure is high. Do not make more than 15 applications per year. Time applications so that 12 hours of dry weather follow application. Do not re-enter treated area for 4 hours. Late Blight Control Only Last Updated: June 06,

11 40 (carboxylic acid amide) Acrobat 50 WP (dimethomorph) Note: no longer produced. Forum (dimethomorph) 450 g/ha (182 g/acre) 450 ml/ha (182 ml/acre) 4 Must be tank mixed with either: Polyram DF, Dithane DG Rainshield NT, or Bravo 500 (see labels). Follow the most restrictive applications directions for number of applications, timing, PHI*, plantback interval, reentry and buffer requirements. Water volumes vary depending on the amount of plant growth. For concentrated sprays use 50 to 100 L/ha (20 to 40 L/acre) of water. For diluted sprays use 225 to 1600 L/ha (90 to 645 L/acre) of water. Under high level of blight infection apply after topkill to reduce tuber blight. Repeat at 5 day Do not apply more than 3 times per season. 27 (cyamoxanil) Curzate 60 DF (cymoxanil) 225 g/ha (90 g/acre) 8 Tank mix with Manzate DF. M (dithiocarbamate) Plus: Manzate DF (mancozeb) Plus: 1.35 to 1.6 kg/ha (0.5 to 1.6 kg/acre) Apply in 200 to 1000 L/ha (80 to 405 L/acre) of water. Repeat every 5 to 7 days. Do not apply more than 7 times per season. Do not apply within 2 hours of rainfall. Last Updated: June 06,

12 21 (benzamide) Cyazofamid 400SC (cyazofamid) Ranman 400SC (cyazofamid) 100 to 200 ml/ha (40 to 80 ml/acre) 7 Do not re-enter treated area for 24 hours. Tank mix with Sylgard 309 at 150 ml/ha (60 ml/ acre). Repeat at 7 day Do not apply more than 6 times per year. Use the high rate for the last 2 or 3 applications prior to dessication. for 12 hours. Observe plant back interval of 30 days. 40 (carboxylic acid amide) Revus (mandipropamid) 400 to 600 ml/ha (160 to 240 ml/ acre ) 14 Use a non-ionic adjuvant (0.25% v/v). Repeat at 7 to 10 day Do not apply more than 4 times per year. May be tank-mixed with Bravo 500. Check Bravo Label for re-entry Apply in at least 100 L/ha (40 L/acre) of water for 12 hours. 29 (pyradinamine) Allegro 500F (fluazinam) 400 ml/ha (160 ml/acre) 14 Spray volumes vary with plant growth, see label. Last Updated: June 06,

13 Begin applications when plants are 15 to 20 cm tall or when conditions favour disease development. Repeat at 7 to 10 day Do not make more than 10 applications per year. Do not make more than 3 sequential applications before alternating to a fungicide with a different mode of action. for 24 hours. Areas treated may be replanted to potatoes as soon as practical. For other root crops and leafy vegetables, observe a 30 day plant back interval (PBI). For all other crops the PBI is 70 days. Last Updated: June 06,

14 33 (phosphonate) Confine Extra (mono- and di-potassium salts of phosphorous acid) Foliar: 5 to 10 L/ha (2.0 to 4.0 L/acre) Apply in 100 L/ha (40 L/acre) of water. 1 Suppression of late blight and pink rot. Do not make more than 5 applications per growing season. Repeat at 7 to 14 day First use on a potato variety should be limited to a small area of each variety, to confirm tolerance prior to adoption as a general field practice. Tankmixing with pesticide products containing a metal base and/or micronutrients may not be compatible and could potentially cause plant injury. See label for details. Phostrol (mono- and dibasic sodium, potassium, and ammonium phosphites) Foliar: 2.9 to 11.6 L/ha (1.2 to 4.7 L/acre) Apply in 200 L/ha (80 L/acre) of water. 0 Apply as a foliar spray on a 7 to 14 day interval. Do not make more than 7 applications in a season. May be applied as a tankmix with Bravo 500 or Echo 720 or Echo 90DF or Ridomil Gold/ Bravo Twin Pack or Dithane F-45 or Dithan DG 75 or Dithan DG Rainshield NT or Gavel 75DF or Penncozeb 75 DF. Read and follow the use directions including Last Updated: June 06,

15 0.42 L water to 1 tonne tubers N/A PHI and re-entry interval on the individual product labels. Do not re-enter treated area for 12 hours. Post-harvest control of late blight and pink rot. Apply directly to tubers. Ensure complete coverage. Do not re-enter treated area for 12 hours. Confine (mono- and di-potassium Post-harvest: dilute at a 1:4.3 ratio with N/A Post-harvest storage treatment. salts of phosphorous acid) Confine Extra (mono- and di-potassium salts of phosphorous acid) water Post harvest: dilute at a 1:5.13 ratio with water (equivalent to 326 ml product mixed with 1674 ml water to treat 1000 kg potatoes) Suppression of late blight, pink rot and silver scurf. First use on a potato variety should be confined to a small area to confirm tolerance prior to adoption as a general field practice. Rampart (mono- and dipotassium salts of phosphorous acid) N/A NOT RECOMMENDED FOR USE ON SEED POTATOES. Apply 2 L of this solution as a spray to 1000 kg of potatoes prior to storage. Ensure thorough coverage. Post-harvest: dilute 190 ml of Post-harvest storage treament. Last Updated: June 06,

16 product in 1 L of water Also controls pink rot. Do not apply more than once per year. Apply as soon as possible after harvest. Prior to storage: Apply 2 L of solution as a spray rinse to 1000 kg of harvested tubers prior to storage. Stored potatoes: Inject 2 L of solution per 1000 kg of stored tubers into water used for the postharvest storage humidification system. 43 (acylpicolide) Presidio (fluopicolide) 220 to 292 ml/ha (89 to 118 ml/acre) 7 Apply in 200 to 500L/ha (80 to 200 L/acre) of water. Tank-mix with a product that has a different mode of action listed in this table for late blight, such as Bravo 500. Follow most restrictive directions including rate, PHI and re-entry interval. Repeat at 7 to 10 day Maximum of 880 ml/ha (356 ml/acre) per season. Do not enter treated for 12 hours. Last Updated: June 06,

17 45 & 40 (triazolopyrimidylamine/ carboxylic acid amide) Zampro (ametoctradin & dimethomorph) 0.8 to 1.0 L/ha (300 to 400 ml / acre) Apply in 200 L/ha (80 L/acre) of water. 4 Repeat at 5 to 10 day Do not apply more than 3 times per season. Use a spreading/ penetrating adjuvant. For reduction in tuber blight, use the high rate immediately prior to or after vine kill. Do not re-enter for 12 hours. Observe a plantback interval of 30 days for all crops not on the label. 28 M (carbamate/ chloronitrile) Tattoo C (propamocarb HCl & chlorothalonil) 2.7 L/ha (1.1 L/acre) Apply in 200 to 300 L/ha (80 to 120 L/acre) of water. 7 Repeat at 7 to 14 day Do not apply more than 3 times per season. Wait a minimum of 7 days after treatment before applying any product containing chlorothalonil (i.e. Bravo, Echo). Do not re-enter for 48 hours after treatment. If required, re-entry is permitted within 48 hours of treatment for short term tasks not involving hand labour provided that 4 hours have passed since application and that long pants and a longsleeved shirt are worn. Last Updated: June 06,

18 U15 Orondis (oxathiapiprolin) 120 to 350 ml/ha (49 to 140 ml/acre Apply in 110 L/ha (45 L/acre) of water. 5 Observe a plantback interval of 30 days for root and leafy vegetables and 120 days for winter wheat and all other crops not on the label. Repeat at 7 to 14 day Do not make more than 4 application per crop, per year. Where multiple crop cycles are produced in the same year, do not make more than 6 applications/ha/year. Do not apply more than 1.40 L/ha (570 ml/acre) per season. Do not re-enter treated area for 12 hours. Early Blight Control Only 7 (pyridinecarboxamide) Lance WDG (boscalid) Cantus WDG (boscalid) 175 to 315 g/ha (170 to 126 g/acre) Apply in at least 100 L/ha (40 L/acre) of water. 30 Repeat at 14 day Maximum of 4 applications per season. No more than two consecutive applications before alternating to a fungicide with a different mode of action. for 12 hours. Last Updated: June 06,

19 7 (carboxamide) Vertisan (penthiopyrad) 1 to 1.75 L/ha (400 to 700 ml/acre) Apply in 110 L/ha (45 L/acre) of water For crops not on the label, observe a plant back interval of 14 days. 7 Suppression only. Repeat at 7 to 14 day Do not apply more than 5 L/ha (2 L/acre) per season. Do not re-enter treated area for 12 hours. 7 (pyridinyl-ethyl- Luna Privilege (fluopyram) 150 to 300 ml/ha (60 to 120 ml/acre) 7 Repeat at 7 to 12 day benzamide) Do not apply more than 800 ml/ha (325 ml/acre) per season. Observe a plantback interval of 30 days for cereals and corn. for 12 hours. 7 (carboxamide (SDHI)) Sercadis 167 to 333 ml/ha (68 to 135 ml/acre) 7 Use with a non-ionic surfactant (0.125% v/v). (fluxapyroxad) Apply in 100 L/ha (40 L/acre) of water Repeat at 7 to 14 day Do not make more than 3 applications per season. Do not apply more than 1.0 L/ha (405 ml/acre) per season No more than 2 consecutive applications Last Updated: June 06,

20 before alternating with a fungicide with a different mode of action. for 12 hours. For crops not listed, observe a plantback interval of 1 year. Also controls Rhizoctonia canker when applied in-furrow at planting. See Soil- Borne Diseases section of this table. 7M (carboxamide/ chloronitrile) Treoris (penthiopyrad/ chlorothalonil) Note: no longer produced. 1.5 to 2.5 L/ha (600 to 1000 ml/ acre) Apply in 110 L/ha (45 L/acre) of water 7 Repeat at 7 to 14 day Do not use more than 10 L/ha (4 L/acre) per season. Do not re-enter treated area for 12 hours. 11 (strobilurin) Quadris F (axosystrobin) 500 to 800 ml/ha (200 to 300 ml/ acre) 1 Also controls black dot. Do not use when late blight is present. Repeat applications at 7 to 14 day Do not make more than 3 applications per season. until residues have dried. Can also be tank-mixed with 2 L/ha (800 ml/acre of Bravo 500. Observe a plant back interval of 30 days for Last Updated: June 06,

21 11 & 3 (strobilurin/ triazole) Quadris Top (azoxystrobin/ difenoconazole) 566 to 1000 ml/ha (229 to 405 ml/ acre) Apply in 150 L/ha (60 L/acre) of water. 14 potatoes and other root crops. Also controls black dot. Do not apply more than once for black dot. Repeat at 7 to 14 day intervals for early blight. Do not make more than 3 applications per year. Do not re-enter treated areas for 12 hours. Observe a plant back interval of 60 days for all crops not registered on this label or the Inspire label. 11 & 7 (amide/ strobilurin) Elatus (benzovindiflupyr/ azoxystrobin) 417 to 500 g/ha (169 to 204 g/acre) Apply in 150 L/ha (60 L/acre) of water. 14 Also controls black dot. Apply as a foliar spray. Repeat at 7 to 14 days. Do not make more than 3 applications per season. Do not apply more than 1.5 kg/ha (0.6 kg/acre) per season. Observe a plantback interval of 6 months for crops not listed. See this table section below for control of soilborne diseases at planting. Last Updated: June 06,

22 3 & 7 (amide/triazole) Aprovia Top (benzovindiflupyr/ difenoconazole) 643 to 967 ml/ha (260 to 391 ml/acre Apply in 150 L/ha (60 L/acre) of water. 14 Apply as a foliar spray. Repeat at 7 to 14 day Do not make more than 4 applications per season. Do not apply more than 3.9 L/ha (1.6 L/acre) per season. Observe a plantback interval of 60 days for sweet corn and 6 months for crops not listed. Do not re-enter treated area for 12 hours. 9 (anilnopyrimidine) M (chloronitrile) Scala SC (pyrimethanil) Plus: Bravo 500 (chlorothalonil) 750 ml/ha (305 ml/ acre) Plus: 1.6 to 2.4 L /ha (650 to 970 ml/ acre) 7 Begin applications when plants are 15 to 20 cm tall, or when disease threatens (whichever comes first). Repeat at 7 day interval. Do not apply more than 6 times per year. Wheat may be planted 30 days following the application of Scala SC. For all crops not listed on the label, observe a plant-back interval of 30 days. Apply in 300 L/ha (121 L/acre) of water. Last Updated: June 06,

23 3 (triazole) Serenade Max (Bacillus subtilis) Serenade ASO (Bacillus subtilis) Quash (metconazole) 2.0 to 4.0 kg/ha (0.8 to 1.6 kg/acre) 8.0 to 15.0 L/ha (3.2 to 6.1 L/acre) 175 to 280 g/ha (70 to 115 g/acre) Apply in 200 L/ha (80 L/acre) of water 0 1 Suppression only. Begin applications soon after emergence. Repeat applications on 7 to 10 day Approved for use in organics Repeat at 7 to 14 day Do not make more than 3 applications at the high rate or more than 4 applications at the low rate. Do not apply more than 840 g/ha (340 g/acre) per season. Application should not be made if rain is expected within 2 hours of application. Observe a 30 day plantback interval for all crops not listed on label. Do not re-enter treated area for 12 hours. Last Updated: June 06,

24 44 Double Nickel 55 (Bacillus amyloliqufaciens strain D747) Double Nickel LC (Bacillus amyloliqufaciens strain D747) 0.5 to 2 kg/ha (200 to 810 g/acre) For smaller plants or low disease pressure: 0.5 to 1 kg/ha (200 to 400 g/acre) 2.5 to 10 L/ha (1.0 to 4 L/acre) For smaller plants or low disease pressure: 2.5 to 5 L/ha ( 1.0 to 2 L/acre) 0 Suppression only. Apply as a foliar spray at row closure to tuber formation. Repeat at 3 to 10 day Do not use highly alkaline or highly acidic water to mix sprays. If necessary, use a buffering agent to maintain a ph of 6 to 8 in the water of the tank. Do not re-enter treated area for 4 hours. Also suppresses Black scurf. See Soilborne Diseases section of this table. Pythium Leak and Pink Rot Suppression 4 M (phenylamide/ chloronitrile) Ridomil Gold/Bravo Twin Pak 1 jug/ 4 ha (1 jug/ 10 acres) Do not use more than 3 times per season (metalaxyl-m / chlorothalonil) Use in L/ha ( L/acre) of water at 275 KPa (40 psi). Ridomil Gold MZ 68WP (metalaxyl-m/ mancozeb) 2.5 kg/ha (1.0 kg/acre) Apply when the largest tubers are nickel-sized and repeat at 10 to 14 day intervals for up to two more treatments. Check label for details. Apply a contact fungicide for late blight 5-7 days after each Ridomil application. Last Updated: June 06,

25 4 (phenylamide) Ridomil Gold 480 SL (Metalaxyl-M) 4 to 6 ml of product per 100 m of row 90 Do not tank mix with a top-killer. Pink Rot suppression only. Apply 4 ml per 100 m of row directly over the seed pieces in furrow as a cm band prior to row closure. Apply in 30 L/ha (12 L/acre) of water. Apply only one time per season. For control of Rhizoctonia stem and stolon canker and black scurf, tankmix with Quadris F at 4 to 6 ml per 100m of row. Note: observe 90 day PHI for this use. For control of Colorado potato beetle, potato leafhopper and aphids, tankmix with Actara 240SC (see label for details). for 12 hours. Observe a plant back interval of 30 days. Last Updated: June 06,

26 33 (phosphonates) Phostrol (mono- and dibasic sodium, potassium, and ammonium phosphites) In Furrow: 5.8 to 11.6 L/ha (2.3 to 4.7 L/acre) Apply in 30 L/ha (12 L/acre) of water. 0 Pink rot suppression only. Apply in a band at planting over the seed pieces priro to row closure. May be applied as a tankmix with Ridomil Gold 480 SL. Read and follow the use directions on the individual product labels. Check PHI on Ridomil 480 SL label. Do not re-enter treated area for 12 hours. Foliar: 5.8 to 11.6 L/ha (2.3 to 4.7 L/acre) Pink rot suppression only. Apply in 200 L/ha (80 L/acre) of water. Apply as a foliar spray on a 7 to 14 day interval. Do not make more than 7 applications in a season. May be applied as a tankmix with Ridomil gold MZ 68WP or Ridomil Gold /Bravo Twin Pack. Read and follow the use directions on the individual product labels. For late blight control see Late Blight Only section of this table. Soilborne Diseases (Rhizoctonia Stem and Stolon Canker, Black Scurf and Silver Scurf) 11 (strobilurin) Quadris F (axosystrobin) 4 to 6 ml of product per 100m of row 90 Apply in 50 to 140 L/ha (20 to 55 L/acre of water. Last Updated: June 06,

27 7 (carboxamide) Vertisan (penthiopyrad) 15.5 to 31 ml per 100 m row N/A Apply once as an infurrow spray as a 15 to 20 cm band just before the seed is covered. Observe a plant back interval of 30 days for potatoes (root crops). Suppression only of Rhizoctonia solani. Does not control or suppress silver scurf. Apply in furrow at planting, using 1.4 to 1.75 L water/100 row meters. Do not apply more than 1.75 L/ha (710 ml/acre). Do not apply more than 5 L/ ha (2 L/acre) per season. Do not re-enter for 12 hours. 7 (carboxamide (SDHI)) Sercadis (fluxapyroxad) Based on 36 inch row-spacing, use 30 ml per 1000 m of row (333 ml/ha or 135 ml/acre). See label for other row-spacing. N/A Apply at planting as an in-furrow spray just before the seed is covered with soil. Direct spray pattern as a 10 to 20 cm (4 to 8 inch) band to uniformly cover seed pieces and surrounding soil. Do not apply more than 1.0 L/ha (405 ml/acre) per season Last Updated: June 06,

28 No more than 2 consecutive applications before alternating with a fungicide with a different mode of action. for 12 hours. For crops not listed, observe a plantback interval of 1 year. Also controls Ealry Blight when applied as a foliar spray. See Early Blight section of this table. 11 & 7 (amide/strobilurin) Elatus (benzovindiflupyr/ azoxystrobin) See rate conversion chart of label for rates per 100 m row. Apply in 50 to 150 L/ha (20 to 60 L/acre) of water. N/A Make an in-furrow application at planting. Do not apply more than 1.5 kg/ha (0.6 kg/acre) per season. Observe a plantback interval of 6 months for crops not listed. See this table section above for control of early blight and black dot. Serenade Soil (QST 713 strain of dried Bacillus subtilis) Approved for use in organics. 2.7 to 14 L/ha (1.1 to 5.7 L/acre) 0 Suppression only. Also suppresses pink rot. In-Furrow Application: Apply in a narrow band with the spray directed at the seed and surrounding Last Updated: June 06,

29 soil before covering the seed or seed piece. Post-plant applications: After crop germination, additional applications may be made to the soil as a drench or spray directed towards the base of the plant. Irrigate to move material into the seed or root zone within 24 hours. Repeat at 21 to 28 day 44 Double Nickel 55 (Bacillus amyloliqufa- Soil application: 0.2 to 1 kg/ha (80 to 400 g/acre) N/A Suppression of Black scurf (Rhizoctonia solani) only. ciens strain D747) Apply as a 10 to 15 cm (4 to Double Nickel LC Soil application: 1 to 6 inch) wide banded spray directly over the seeds in- (Bacillus amyloliqufaciens strain D747) 5 L/ha (0.4 to 2 L/acre) furrow just before they are covered with soil. See banded/in-furrow rate conversion chart of label for the amount of product per 100 meters of row that will provide the desired application rate based on row spacing. Do not use highly alkaline or highly acidic water to mix sprays. If necessary, use a buffering agent to maintain Last Updated: June 06,

30 a ph of 6 to 8 in the water of the tank. Do not re-enter treated area for 4 hours. Also suppresses Early Blight. See Early Blight Control Only section of this table. *PHI = Pre-harvest interval BUFFERS Refer to product label for buffer requirements. See also Pesticide Regulations and Safety section of this guide. PESTICIDE GROUP DETAILS see Pesticide Toxicity Table of this guide. Last Updated: June 06,