Grower Success Guide 2020-2021 | North America

GROWER SUCCESS GUIDE | SEED FINISHING

Laurentia STARSHINE ™ F1 Laurentia axillaris MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM

PESTS

DISEASES

pH: 5.5–5.9 SME 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm

2,000–4,000 foot candles Facultative long day

62–64 °F (17–18 °C)

62–64 °F (17–18 °C)

125–175 ppm N 1 qt. | 1 ppp | 10–11 weeks

Aphids, Fungus Gnats, Shore Flies, Thrips

Botrytis, Rhizoctonia, Pythium

1.5 gal. HB | 3–5 ppp | 10–11 weeks 1.5 gal. pot | 3–5 ppp | 10–11 weeks

FINISH PGRs

TECH TIPS

If needed spray with B-Nine ® WSG at 2,500 ppm.

Cool days with high light will reduce the need to apply PGRs.

Lavatera NOVELLA ™ F1 Lavatera trimestris MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM

PESTS

DISEASES

pH: 5.5–5.9 SME 1.5–2.1 mS/cm, PourThru EC: 2.3–3.2 mS/cm

4,000–6,000 foot candles Obligate long day

68–70 °F (20–21 °C)

60–62 °F (16–17 °C)

125–175 ppm N 1 pt. | 1 ppp | 9–10 weeks 1 qt. | 1 ppp | 9–10 weeks

Aphids and Whiteflies

Anthracnose and Sclerotinia

1.25 qt. | 1 ppp | 10–12 weeks 2.5 qt. | 1 ppp | 10–12 weeks 3 qt. | 2–3 ppp | 10–12 weeks 1.5 gal. pot | 3 ppp | 10–12 weeks

FINISH PGRs

TECH TIPS

The early PGR sprench during stage 1 of plug growth is critical so that plants are not floppy at retail. Transplant plugs on time; do not let them get root bound.

Growing cool at night helps keep growth under control. If more growth control is needed, spray up to three times with Cycocel ® at 1,500 ppm.

Marigold African ANTIGUA ™ F1 Tagetes erecta MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM

PESTS

DISEASES

pH: 0 SME 0.9–1.3 mS/cm, PourThru EC: 1.4–2.0 mS/cm

4,000–6,000 foot candles Facultative short day

68–70 °F (20–21 °C)

58–60 °F (14–16 °C)

125–175 ppm N Packs | 1 ppp | 6–7 weeks 1 qt. | 1 ppp | 7–8 weeks

Spider Mites, Thrips, Leafminer,

Alternaria Leaf Spot, Botrytis and Pythium.

Aphids and Whiteflies.

FINISH PGRs

TECH TIPS

Usually not required, especially when finished during short days. If necessary under low light or high tem- perature/humidity conditions spray with B-Nine ® at 5,000 ppm before buds are wider than 1 cm (pea size). Later PGR sprays may reduce flower size or cause flowering in the foliage.

Easy to germinate on the bench. Maintain media pH above 6.2 to avoid iron/manganese toxicity. Short days will shorten time to flower.

Marigold African BIG TOP ™ F1 Tagetes erecta MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM

PESTS

DISEASES

pH: 6.1–6.5 SME 0.9–1.3 mS/cm, PourThru EC: 1.4–2.0 mS/cm

4,000–6,000 foot candles Facultative short day

68–70 °F (20–21 °C)

58–60 °F (14–16 °C)

125–175 ppm N 1 pt. | 1 ppp | 7–8 weeks 1 qt. | 1 ppp | 7–8 weeks

Spider Mites, Thrips, Leafminer, Aphids and Whiteflies

Alternaria Leaf Spot, Botrytis and Pythium

1.25 qt. | 1 ppp | 8–9 weeks 2.5 qt. | 1 ppp | 8–9 weeks 3 qt. | 3 ppp | 8–9 weeks 1.5 gal. pot | 3–4 ppp | 8–10 weeks

FINISH PGRs

TECH TIPS

Usually not required, especially when finished during short days. If necessary, under low light or high temperature/humidity conditions spray with B-Nine ® WSG at 5,000 ppm before buds are wider than 1 cm (pea size). Later PGR sprays may reduce flower size or cause flowering in the foliage.

Easy to germinate on the bench. Maintain media pH above 6.2 to avoid iron/manganese toxicity. Short days reduces time to flower.

Marigold African INCA II ™ F1 Tagetes erecta MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM

PESTS

DISEASES

pH: 0 SME 0.9–1.3 mS/cm, PourThru EC: 1.4–2.0 mS/cm

4,000–6,000 foot candles Facultative short day

68–70 °F (20–21 °C)

58–60 °F (14–16 °C)

125–175 ppm N Large Packs | 1 ppp | 7–8 weeks 1 qt. | 1 ppp | 8–9 weeks 1.25 qt. | 1 ppp | 9–10 weeks

Spider Mites, Thrips, Leafminer,

Alternaria Leaf Spot, Botrytis and Pythium.

Aphids and Whiteflies.

FINISH PGRs

TECH TIPS

Usually not required, especially when finished during short days. If necessary under low light or high tem- perature/humidity conditions spray with B-Nine ® at 5,000 ppm before buds are wider than 1 cm (pea size). Later PGR sprays may reduce flower size or cause flowering in the foliage.

Easy to germinate on the bench. Maintain media pH above 6.2 to avoid iron/manganese toxicity. Short days will shorten time to flower.

Marigold African PERFECTION ™ F1 Tagetes erecta MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM

PESTS

DISEASES

pH: 0 SME 0.9–1.3 mS/cm, PourThru EC: 1.4–2.0 mS/cm

4,000–6,000 foot candles Facultative short day

68–70 °F (20–21 °C)

58–60 °F (14–16 °C)

125–175 ppm N 1 qt. | 1 ppp | 9–10 weeks

Spider Mites, Thrips, Leafminer,

Alternaria Leaf Spot, Botrytis and Pythium.

1.25 qt. | 1 ppp | 9–10 weeks 2.5 qt. | 1–2 ppp | 9–10 weeks

Aphids and Whiteflies.

FINISH PGRs

TECH TIPS

Usually not required, especially when finished during short days. If necessary under low light or high tem- perature/humidity conditions spray with B-Nine ® at 5,000 ppm before buds are wider than 1 cm (pea size). Later PGR sprays may reduce flower size or cause flowering in the foliage.

Easy to germinate on the bench. Maintain media pH above 6.2 to avoid iron/manganese toxicity. Short days will shorten time to flower.

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