Publication 360 - Sweet Cherry Calendar for Ontario

The Sweet Cherry Calendar is an excerpt from Publication 360 - Fruit Production Recommendations, 2006 - 2007 version

Table of Contents

1. Pub 360 Chapter 10 - Tender Fruit (Stone Fruit and Pears) - Sweet Cherry Calendar pgs. 232 -234 (Pdf format 80k)
2. Bloom
3. Petal fall
4. Shuck fall
5. First cover (12 days after shuck fall)
6. Second cover (12 days after first cover)
7. Third cover
8. Prepick
9. Postharvest
10. Table 10-12. Products Used on Sweet Cherries

Read the label and follow all safety precautions.
Consult the product label for suggested water volumes. Otherwise, use enought water to ensure thorough spray coverage. Where the product rate is listed in amount/1,000 L and if a water volume is not provided on the label, use enough water to wet the foliage to the near drip point.
For resistance management, refer to Pest Resistance to Insecticides, Fungicides, Miticides, on page 54.
For preharvest interval, re-entry period, maximum number of applications and chemical group, see Table 10-12. Products Used on Sweet Cherries, on page 234.

**Page numbers refer to pages in Publication 360 - Fruit Production Recommendations**

Bloom

Do not apply insecticides while cherry trees are in bloom. See bee poisoning on page 79.

Diseases and Insects

• Brown rot (stem rot and blossom blight stages)

Materials and Amount/ha

• Topas 250 E @ 500 mL
• Nova 40 W @ 340 g
• Rovral @1.75 kg
• Bravo 500 @ 7.00 L
• Supra Captan 80 WDG @ 4.50 kg
  or Maestro 80 DF @ 4.50 kg
• Funginex 190 EC @ 2.50 L
• Elevate 50 WDG @ 1.70 kg
• Lance WDG @ 370 g
• Indar 75 WSP @ 140 g
• Mission 418 EC @ 300 mL

Comments

Blossom blight is favoured by wet, warm (above 16°C) weather, especially when large numbers of mummies are present in the trees. Apply first spray just before blossoms open, followed by two additional sprays during the bloom period if weather remains favourable for blight.
To avoid resistance, do not apply Topas, Nova, Rovral, Elevate, Indar or Lance more than two times for each product per season. Alternate between fungicide families and do not use the same product in consecutive sprays. See Pest Resistance to Insecticides, Fungicides, Miticides, on page 54, and
Table 10-12. Products used on Sweet Cherries.
Nova and Topas are absorbed by flower parts, making these materials more rainfast than other protectant fungicides.
See note on Brown rot control, on page 215.
Captan, Maestro or Bravo: Do not use within 14 days of an application of Superior Oil.
Bravo: Do not apply after shuck to avoid fruit injury.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Brown rot

| Top of Page |

Petal fall

Diseases and Insects

• Black cherry aphid

Materials and Amount/ha

• Diazinon 50 W @ 3.00 kg
• Thiodan 50 WP @ 4.50 kg
  or Thionex 50 W @ 4.50 kg
• Zolone Flo @ 2.00 L

Comments

A temperature of at least 21oC, thorough coverage and a calm day are needed for effective aphid control. Usually one to two sprays is required.
Zolone: Maximum three applications per season.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Aphids

| Top of Page |

Shuck fall

Diseases and Insects

• Plum curculio

Materials and Amount/ha

• Guthion Solupak @ see label
  or Sniper @ see label
• Zolone Flo @ 2.00 L

Comments

Spray when most of the shucks are off and plum curculio activity is observed, usually when temperatures are above 16°C.
Zolone also helps control aphids. Maximum three applications of Zolone per season.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Plum curculio

Diseases and Insects

• Brown rot

Materials and Amount/ha

• Topas 250 E @ 500 mL
• Rovral @1.75 kg
• Supra Captan 80 WDG @ 4.50 kg
  or Maestro 80 DF @ 4.50 kg
• Elevate 50 WDG @ 1.70 kg
• Lance WDG @ 370 g
• Indar 75 WSP @ 140 g

Comments

Captan and Maestro may cause leaf injury to Schmidt and Emperor Francis varieties in postbloom sprays.
To avoid resistance, do not apply Topas, Nova, Rovral, Elevate, Indar or Lance more than two times for each product per season. Alternate between fungicide families and do not use the same product in consecutive sprays.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Brown rot

| Top of Page |

First cover (12 days after shuck fall)

Diseases and Insects

• Plum curculio

Materials and Amount/ha

• Use one of the insecticides listed under Shuck fall.

Comments

Zolone: helps control aphids but is only fair against plum curculio. Monitor seven days after shuck fall insecticide for new plum curculio damage. Apply insecticide if new crescentshaped cuts are found.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Plum curculio

Diseases and Insects

• Brown rot

Materials and Amount/ha

• Use one of the fungicides listed under Shuck fall.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Brown rot

| Top of Page |

Second cover (12 days after first cover)

Diseases and Insects

• Cherry fruit fly
• Plum curculio

Materials and Amount/ha

• Guthion Solupak @ see label
  or Sniper @ see label
• Diazinon 50 W @ 3.00 kg
• Zolone Flo @ 2.00 L

Comments

On early varieties, check the preharvest interval. Spray when early varieties are beginning to colour.
Diazinon is not labelled for and does not control plum curculio. Diazinon provides ten days protection against cherry fruit fly.
Zolone provides 12-14 days protection against cherry fruit fly. Maximum three applications of Zolone per season.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Plum curculio

Diseases and Insects

• Powdery mildew

Materials and Amount/ha

• Cabrio EG @ 670 g

Comments

Powdery mildew is not a common problem on sweet cherries. Only required on susceptible varieties.

Diseases and Insects

• Brown rot

Materials and Amount/ha

• Topas 250 E @ 500 mL
• Rovral @1.75 kg
• Supra Captan 80 WDG @ 4.50 kg
  or Maestro 80 DF @ 4.50 kg
• Elevate 50 WDG @ 1.70 kg
• Lance WDG @ 370 g
• Indar 75 WSP @ 140 g

Comments

To avoid resistance, do not apply Topas, Nova, Rovral, Elevate, Indar or Lance more than two times for each product per season. Alternate between fungicide families and do not use the same product in consecutive sprays.
Topas Apply no more than two applications of Topas in the three weeks prior to harvest.
Captan and Maestro may cause leaf injury to Schmidt and Emperor Francis varieties in post bloom sprays.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Brown rot

| Top of Page |

Third cover

Diseases and Insects

• Cherry fruit fly

Materials and Amount/ha

• Sevin XLR @ 6.25 L
• Zolone Flo @ 2.75 L
• Diazinon 50 W @ 3.00 kg

Comments

Check Preharvest interval before spraying early maturing cherries. See Table 10-12 on page 234.
Sevin XLR provides five to seven days protection.
Zolone: Maximum three applications per season.

Diseases and Insects

• Brown rot

Materials and Amount/ha

• Use one of the fungicides listed under Second cover.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Brown rot

| Top of Page |

Prepick

Diseases and Insects

• Brown rot

Materials and Amount/ha

• Rovral @1.75 kg
• Supra Captan 80 WDG @ 4.50 kg
  or Maestro 80 DF @ 4.50 kg
• Elevate 50 WDG @ 1.70 kg
• Lance WDG @ 370 g
• Indar 75 WSP @ 140 g
• Mission 418 EC @ 300 mL

Comments

Consult product labels for preharvest intervals in Table 10-12 on page 234.
To avoid resistance, do not apply Topas, Nova, Rovral, Elevate, Indar, or Lance more than two times for each product per season. Alternate between fungicide families and do not use the same product in consecutive sprays.
Captan and Maestro may cause leaf injury to Schmidt and Emperor Francis varieties in postbloom sprays.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Brown rot

| Top of Page |

Postharvest

Diseases and Insects

• Leaf spot

Materials and Amount/ha

• Equal 65 WP @ 2.25 kg
• Supra Captan 80 WDG @ 4.50 kg
  or Maestro 80 DF @ 4.50 kg
• Ferbam 76 WDG @ see label

Comments

Only necessary where leaf spot is a problem or where sweet cherries are beside sour cherries.
Captan and Maestro may cause leaf injury to the Schmidt and Emperor Francis varieties in postbloom sprays.

Learn more

• Notes on Tender Fruit Insects & Diseases
  • Fabraea leaf spot

| Top of Page |

Table 10-12. Products Used on Sweet Cherries

Use this table as a guide, but refer to product label for specific information.

The preharvest interval is the number of days between the last spray and first harvest.

The re-entry period is the minimum interval that must be observed between applying the pesticide and working in the treated crop without protective equipment. If no re-entry period is stated on the label, assume that the spray solution must be dry before re-entry can occur.

The maximum number of applications is the labelled maximum number for the growing season, and may be higher than what is recommended for resistance management or for preserving beneficial insects.

| Top of Page |