SEED FINISHING
FINISH PGRs
TECH TIPS
Responsive to B-Nine ® WSG, Bonzi ® and Sumagic ® . Xtreme Impatiens are bred to be more compact than standard Impatiens so may require less plant growth regulators (PGRs).
Use a calcium-based fertilizer and feed once a week at most to avoid soft growth and stretching of plants. Do not let plants go into the night with wet foliage or tip abortion may occur, especially during early stages of growth. Downward cupping or twisting of immature leaves may be caused by overuse of plant growth regulators (PGRs). It is better to use less water and fertilizer than PGRs to control growth. Preventive fungicide applications for foliar and root disease are recommended, especially in high humidity environments. Subdue Maxx ® , Mural ® , Micora ® , and Segovis ® fungicides can be used in a rotation program to control the common disease problems of Impatiens.
FINISH PGRs
TECH TIPS
Usually not required in larger containers. In small pots/packs or under low light conditions spray with Bonzi ® at 1–3 ppm as needed.
Ensure a good scouting program for Thrips is in place. Do not try to grow cool; plant growth will stall under 60 °F (16 °C).
FINISH PGRs
TECH TIPS
B-Nine ® WSG at 5,000 ppm if needed.
Stretched plugs can be buried if necessary. Maintain media pH above 6.2 to avoid iron/manganese toxicity. Short days will shorten time to flower.
FINISH PGRs
TECH TIPS
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).
Stretched plugs can be buried if necessary. Maintain media pH above 6.2 to avoid iron/manganese toxicity. Short days will shorten time to flower.
FINISH PGRs
TECH TIPS
Usually not required. B-Nine ® WSG at 5,000 ppm before buds are wider than 1 cm (pea size). Later plant growth regulator (PGR) sprays may reduce flower size or cause flowering in the foliage.
Stretched plugs can be buried if necessary. Maintain media pH above 6.2 to avoid iron/manganese toxicity. Short days will shorten time to flower.
FINISH PGRs
TECH TIPS
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).
Stretched plugs can be buried if necessary. Maintain media pH above 6.2 to avoid iron/manganese toxicity. Short days will shorten time to flower.
FINISH PGRs
TECH TIPS
B-Nine ® WSG at 2,500–5,000 ppm if needed.
To avoid iron and/or manganese toxicity, monitor and maintain media pH above 6.1. If plugs are stretched, plant them deep, up to the cotyledon, to prevent floppiness.
G R O W E R S U C C E S S G U I D E 2 0 2 2 – 2 0 2 3 | A N N U A L S
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