2023 Success Guide Annuals | Americas

SEED FINISHING

FINISH PGRs

TECH TIPS

If needed sprays B-Nine ® WSG at 1,500–2,500 ppm, Bonzi ® at 5–10 ppm or Sumagic ® at 2.5–5 ppm are effective in reducing stretch under suboptimal environmental conditions. Bonzi ® can also be drenched at 1–2 ppm. Do not apply Bonzi ® after visible buds to prevent clubby flowers.

Handle plugs gently when transplanting since Snapdragons have relatively weak root systems. Do not bury the stem to avoid stem rot diseases. Control thrips to avoid TSWV or INSV infections.

FINISH PGRs

TECH TIPS

Apply 3–4 ppm Bonzi ® (paclobutrazol) drench 1–2 weeks after pinch; 3–4 ppm drench at first sign of visible buds; 3–4 ppm drench when flowers start cracking color to hold for finish. Higher concentrations may be necessary under high temperature and long day conditions, but do not exceed 6 ppm for each drench.

A pinch is required to promote branching and control vigor. After 6–7 nodes develop on the stem, pinch shoot tips leaving 4 nodes. The nodes of Sunfinity are opposite so a pinch to 4 nodes would leave 8 leaves. This is a hard pinch. The top 2 leaves left after the pinch can be removed to help promote even branching.

FINISH PGRs

TECH TIPS

Usually not needed, but if needed B-Nine ® WSG sprays of 1,250–2,500 ppm are effective.

Do not bury the seedling to avoid stem rot. Provide good air circulation and do not irrigate late in the day to avoid Botrytis stem infections.

FINISH PGRs

TECH TIPS

Spray with B-Nine ® WSG ® at 2,500–5,000 ppm as needed.

Verbena is very attractive to thrips and they can infect the plants with Tospovirus (Tomato Spotted Wilt Virus or Impatiens Necrotic Spot Virus) so start with an effective scouting program and start a thrips control program as soon as any population is detected. Supplemental HID lighting under short days or during cloudy weather will hasten flowering.

FINISH PGRs

TECH TIPS

Verbena is very attractive to Thrips and they can infect the plants with Tospovirus (Tomato Spotted Wilt Virus or Impatiens Necrotic Spot Virus) so start with an effective scouting program and start a thrips control program as soon as any population is detected. Supplemental HID lighting under short days or during cloudy weather will hasten flowering. Pinching Obsession Cascade Verbena will create the fullest looking plant but will increase crop time by about ten days.

Drench with Bonzi ® at 1–3 ppm as needed to control growth. Also responds to sprays of Bonzi ® at 10–20 ppm or B-Nine ® WSG at 3,500–5,000 ppm.

FINISH PGRs

TECH TIPS

Spray with B-Nine ® WSG at 2,500–5,000 ppm as needed.

Verbena is very attractive to thrips and they can infect the plants with Tospovirus (Tomato Spotted Wilt Virus or Impatiens Necrotic Spot Virus) so start with an effective scouting program and start a thrips control program as soon as any population is detected. Supplemental HID lighting under short days or during cloudy weather will hasten flowering.

FINISH PGRs

TECH TIPS

If needed sprays of B-Nine ® WSG at 2,500–5,000 ppm or A-Rest ® at 2–4 ppm may be applied.

Start with a disinfected growing area and keep media pH below 5.8 to help avoid Thielaviopsis infections. Control thrips to prevent INSV or TSWV infections. Do not try to finish Vinca early in the North since the plants need high light and warm temperatures to grow adequately. Plant growth regulators (PGRs) are usually not required except in pack production. Never apply Bonzi ® to vinca as leaf spotting may occur.

GROWER SUCCESS GUIDE 2023-2024 | ANNUALS

49

Made with FlippingBook Learn more on our blog