Annuals Catalog 2020-2021 | North America

GROWER SUCCESS GUIDE | SEED FINISHING

Begonia BADA BING ® /BADA BOOM ® F1 Begonia semperflorens 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 Day Neutral

66–68 °F (19–20 °C)

64–66 °F (18–19 °C)

125–175 ppm N Packs | 1 ppp | 4–5 weeks 1 pt. | 1 ppp | 5–6 weeks

Aphids, Thrips

Botrytis

1 qt. | 1–2 ppp | 5–6 weeks 1.25 qt. | 3 ppp | 5–7 weeks 1.5 gal. HB | 5–6 ppp | 7–8 weeks

FINISH PGRs

TECH TIPS

Usually not required. Plant growth can be controlled best through proper moisture, feed and temperature management. If needed due to environmental conditions sprays of Cycocel ® at 500–1,000 ppm or B-Nine ® WSG/Cycocel ® tank mixes at 1,500 ppm B-Nine ® WSG/300 ppm Cycocel ® are effective. Avoid spraying with B-Nine ® WSG during the last few weeks of crop time to avoid reducing flower size.

Avoid overwatering to help prevent excess algae growth and to promote root growth into the media. If germinating on the bench it is helpful to cover trays with ReeMay ® or similar to help retain humidity and reduce irrigation frequency. When irrigating use low pressure/volume nozzles/breakers to avoid moving seeds around in the cell. If the daily light integral (DLI) is less than 12 mols/day adding supplemental HID light will promote a more uniform crop. Do not use plug trays that have been used previously and had a crop treated with paclobutrazol grown in them. Most Begonia semperflorens will stop growing if exposed to any level of paclobutrazol. Do not irrigate with recycled water for this reason.

Begonia BOSSA NOVA ™ F1 Begonia boliviensis MEDIA pH/EC LIGHT LEVEL

DAY LENGTH DAY TEMP NIGHT TEMP FERTILIZER FINISHING PROGRAM

PESTS

DISEASES

pH: 5.5–5.9 SME 0.9–1.3 mS/cm, PourThru EC: 1.4–2.0 mS/cm

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

66–68 °F (19–20 °C)

58–60 °F (14–16 °C)

200–250 ppm N 1 pt. | 1 ppp | 7–8 weeks 1 qt. | 1 ppp | 8–9 weeks

Fungus Gnats and Shoreflies (during propagation) and Thrips

Pythium and Botrytis

1.25 qt. | 1–2 ppp | 8–10 weeks 2.5 qt. | 1–2 ppp | 8–10 weeks 3 qt. | 3–5 ppp | 8–10 weeks 1.5 gal. HB | 3–5 ppp | 8–10 weeks

FINISH PGRs

TECH TIPS

Proper management of moisture, fertilizer, and light is the best way to control growth. If needed, Bossa Nova Begonia responds well to sprays of B-Nine ® WSG at 1,500–2,500 ppm.

Irrigate early in the day to avoid leaf scorch when high light levels are present. Allowing the soil surface to dry between irrigations will reduce algae growth.

Begonia EUREKA ™ F1 Begonia semperflorens 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 Day Neutral

66–68 °F (19–20 °C)

64–66 °F (18–19 °C)

125–175 ppm N Packs | 1 ppp | 5–6 weeks

Aphids, Thrips

Botrytis

Large Packs | 1 ppp | 5–6 weeks 1 pt. | 1 ppp | 6–7 weeks 1 qt. | 1–2 ppp | 6–7 weeks 1.25 qt. | 3 ppp | 6–8 weeks 2.5 qt. | 3 ppp | 6–8 weeks 1.5 gal. HB | 5–6 ppp | 8–9 weeks

FINISH PGRs

TECH TIPS

Usually not required. Plant growth can be controlled best through proper moisture, feed and temperature management. If needed due to environmental conditions sprays of Cycocel ® at 500–1,000 ppm or B-Nine ® WSG/Cycocel ® tank mixes at 1,500 ppm B-Nine ® WSG/300 ppm Cycocel ® are effective. Avoid spraying with B-Nine ® WSG during the last few weeks of crop time to avoid reducing flower size.

Avoid overwatering to help prevent excess algae growth and to promote root growth into the media. If germinating on the bench it is helpful to cover trays with ReeMay ® or similar to help retain humidity and reduce irrigation frequency. When irrigating use low pressure/volume nozzles/breakers to avoid moving seeds around in the cell. If the daily light integral (DLI) is less than 12 mols/day adding supplemental HID light will promote a more uniform crop. Do not use plug trays that have been used previously and had a crop treated with paclobutrazol grown in them. Most Begonia semperflorens will stop growing if exposed to any level of paclobutrazol. Do not irrigate with recycled water for this reason.

Begonia TOPSPIN ™ F1 Begonia semperflorens 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 Day Neutral

66–68 °F (19–20 °C)

64–66 °F (18–19 °C)

125–175 ppm N Packs | 1 ppp | 4–5 weeks 1 pt. | 1 ppp | 5–6 weeks

Aphids, Thrips

Botrytis

1 qt. | 1–2 ppp | 5–6 weeks 1.25 qt. | 3 ppp | 5–7 weeks 2.5 qt. | 3 ppp | 5–7 weeks 1.5 gal. HB | 5–6 ppp | 7–8 weeks

FINISH PGRs

TECH TIPS

Usually not required. Plant growth can be controlled best through proper moisture, feed and temperature management. If needed due to environmental conditions sprays of Cycocel ® at 500–1,000 ppm or B-Nine ® WSG/Cycocel ® tank mixes at 1,500 ppm B-Nine ® WSG/300 ppm Cycocel ® are effective. Avoid spraying with B-Nine ® WSG during the last few weeks of crop time to avoid reducing flower size.

Avoid overwatering to help prevent excess algae growth and to promote root growth into the media. If germinating on the bench it is helpful to cover trays with ReeMay ® or similar to help retain humidity and reduce irrigation frequency. When irrigating use low pressure/volume nozzles/breakers to avoid moving seeds around in the cell. If the daily light integral (DLI) is less than 12 mols/day adding supplemental HID light will promote a more uniform crop. Do not use plug trays that have been used previously and had a crop treated with paclobutrazol grown in them. Most Begonia semperflorens will stop growing if exposed to any level of paclobutrazol. Do not irrigate with recycled water for this reason.

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