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Apple Calendar: Dormant to Tight Cluster

Author: OMAFRA Staff
Creation Date: 25 June 2007
Last Reviewed: 25 June 2007
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Extract of Publication 360, Fruit Production Recommendations , To order this publication

Cover of Publication 360, Fruit Production RecommendationsTable of Contents

  1. Apple Calendar
  2. Pub 360 Chapter 7 - Apples - Apple Calendar - (Pdf format 1.17 Mb)
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  4. For more Information

Apple Calendar

Consult the product label for suggested water volumes. Otherwise, use enough water to ensure thorough spray coverage. Where the product rate is listed in amount per 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.

Check Table 7-7, Days to Harvest Intervals for Products Used on Apples

Dormant

Adult male San Jose scaleDiseases and Insects

  • San Jose scale
  • European fruit scale
  • Lecanium Scale

Materials and Amount/ha trees 4.5 - 5.5 m high

  • Superior 70 Oil - 20 L of oil/1,000 L of water

Comments

Apply full rate of oil in 2,000-3,000 L of water/ha. 3,000 L gives best results. On large standard trees, use 90 L of oil in 4,500 L of water/ha. Test the stability of the emulsion by shaking in a jar. Do not use oil within 48 hours of freezing temperatures. Do not apply full rate of oil more than once per season.

Do not use oil within 14 days of Captan or Maestro.

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**Oil may cause bark injury on Red Delicious, Empire and Mutsu (Crispin).**

Green tip up to half-inch green

An apple with scab lesionsDiseases and Insects

  • Scab protectants

Materials and Amount/ha trees 4.5 - 5.5 m high

  • Manzate DF - 6.00 kg
    or Dithane DG - 6.00 kg
    or Penncozeb 75 DF (see label)
  • Polyram DF - 6.00 kg
  • Supra Captan 80 WDG 3.75 kg
    or Maestro 80 DF - 3.75 kg
  • Dikar - 6.75 kg
  • Vangard 75 WG - 370 g
  • Scala SC - 1.00 L

Comments

Apply fungicide before spore release and keep growing leaves covered. Alternate materials in a spray program. Read Apple Scab on page 117.

When used in a full season program, Dikar will suppress mites. Higher water volumes help mite suppression. Consult label.

Use Vangard or Scala as protectant fungicides. Make no more than 2 applications per season, prebloom only. Vangard and Scala do not control other foliar or fruit diseases.

Learn more:

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Half-inch green to tight Cluster

European Red MiteDiseases and Insects

  • European red mite

Materials and Amount/ha trees 4.5 - 5.5 m high

  • Superior 70 Oil - 20 L of oil/1,000 L of water

Comments

Do not apply full rate of oil more than once per season. Apply oil in 2,000-3,000 L of water/ha. 3,000 L gives best results. On large standard trees, use 90 L of oil in 4,500 L of water/ha. Test the stability of the emulsion by shaking in a jar.

Apply Superior 70 Oil for the control of European red mite before overwintering eggs hatch. Usually the best timing is between Half-inch green and Tight cluster when temperatures are getting warmer.

Do not use oil within 14 days of Captan or Maestro.

Learn more:

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**Oil may cause bark injury on Red Delicious, Empire and Mutsu (Crispin).**

Rosy apple aphid colonyDiseases and Insects

  • Rosy apple aphid

Materials and Amount/ha trees 4.5 - 5.5 m high

  • Pirimor 50 DF - 1.70 kg
  • Assail 70 WP - 120 g

Comments

Pirimor: Some countries have zero tolerance for Pirimor residues on fruit. Check with your packer before applying this material. Maximum 2 applications per season.

Assail: Alternate with insecticides from different chemical families. Maximum of 4 applications per season.

Learn more:

 

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developing secondary scab lesionsDiseases and Insects

  • Scab

Materials and Amount/ha trees 4.5 - 5.5 m high

  • Manzate DF - 6.00 kg
    or Dithane DG - 6.00 kg
    or Penncozeb 75 DF - see label
  • Polyram DF - 6.00 kg
  • Supra Captan 80 WDG - 3.75 kg
    or Maestro 80 DF - 3.75 kg
  • Dikar - 6.75 kg
  • Sovran - 240 g
  • Nova 40 W - 340 g
    plus Dithane DG - 3.00 kg
  • Nova 40 W - 340 g
    plus Polyram DF - 3.00 kg
  • Nova 40 W - 340 g
    plus Maestro 80 DF - 1.90 kg
  • Nustar - 100 g
    plus Manzate 200 DF - 3.00 kg
  • 4Vangard 75 WG - 370 g
  • 2Flint 50 WG - 140 g
  • Scala SC - 1.00 L

Comments

See Apple Scab on page 117.

Sovran or Flint: Do not use Sovran or Flint earlier than Tight cluster. Apply in blocks of 2 applications, 10 days apart. Use another chemical family for 2 applications before returning to these products. Maximum 4 applications of Sovran or Flint per season. After last application of Sovran or Flint, tissue is protected from infection for 5-8 days. In conditions of rapid growth, shorten intervals between applications. Check labels for details.

See Use of Strobilurin Fungicides on page 120 and Use of Demethylation Inhibitor (DMI) Fungicides (sterol-inhibitors) on page 120.

See Table 4-2, Fungicide/Bactericide Groupings Based on Sites of Action, on page 49.

The following products are compatible with oil:

  • Polyram DF
  • Dithane DG
  • Manzate DF

When mixing fungicides with oil, add fungicide to tank when 1/4 to 1/2 full of water and mix thoroughly. Add Superior 70 Oil last when tank is at least 3/4 full of water.

Do not use oil within 14 days of Captan or Maestro.

Note: Oil may cause bark injury to Red Delicious, Empire and Crispin.

Learn more:

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powdery mildew damage on fruitDiseases and Insects

  • Powdery Mildew

Materials and Amount/ha trees 4.5 - 5.5 m high

  • Use 1 of the products listed at Tight cluster to pink

Learn more:

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oriental fruit moth damage on a fruitDiseases and Insects

  • Oriental fruit moth

Materials and Amount/ha trees 4.5 - 5.5 m high

  • Isomate M100 - 250 dispensers/ha
  • Isomate Rosso - 500 dispensers/ha

Comments

Mating disruption products are not insecticides, and will not control other pests. Initial OFM population must be low for good results. Apply to square or rectangular orchard blocks at least 4 ha in size, before a given generation of OFM flight begins.

Isomate M100 : Make a 2nd application of up to 75-80 days after initial application.

Isomate Rosso provides control for up to 120 days.

Regardless of the product used take note of field longevity. Do not leave the crop unprotected late in the season.

Learn more:

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For more information on mating disruption see Oriental Fruit Moth on page 110 and OMAFRA Factsheet Mating Disruption for Management of Insect Pests, Order No. 03-079.

Learn more

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