Publication 360, Fruit Production Recommendations:
Peach Calendar - Shuck split

Excerpt from Publication 360, Fruit Production Recommendations 2010-11,
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Table of Contents

1. Shuck split
   • Oriental fruit moth (first generation)
   • Plum curculio
   • Peachtree borer
   • Brown rot
   • European red mite
   • Lesser peachtree borer, peachtree borer
   • Precautions
2. Other Peach Calendar sections
   • Dormant (in March or early April before buds swell)
   • Prebloom (half-inch green to first pink)
   • Bloom
   • Petal fall and shuck
   • Special sprays (when monitoring indicates the need during early green fruit stage to pit hardening)
   • Second generation oriental fruit moth spray
   • Special sprays (when monitoring indicates the need)
   • Third generation oriental fruit moth spray (late varieties)
   • Prepick
   • Postharvest fruit treatment
   • Fall spray (preferred time to spray for leaf curl)
3. Other Information on Peaches
   • Thinning Peaches
   • Notes on Tender Fruit Insects & Diseases
   • Table 7-8. Products Used on Peaches
   • Table 7-11. Activity of Fungicides on Stone Fruit Diseases
   • Tender Fruit Nutrition
4. Peach Calendar PDF 119 KB
5. Chapter 7 - Tender Fruit Calendar PDF 401 KB
6. Related Links

Oriental fruit moth (first generation) (Shuck split)

• Materials: Use one of:
  • Assail 70 WP @ 120-240 g/ha
  • Lorsban 50 W @ 3.5 kg/ha
• Comments: Where mating disruption products for OFM have been placed in the orchard, a pesticide application is generally not required at this time.
  Assail: For optimum activity, use the 240 g/ha rate. Apply in a minimum spray volume of 1,000 L/ha. Do not apply more than once every 12 days. Will also suppress/control plum curculio.
  Lorsban: Use for the control of first generation only.
  Do not use pyrethroids for control of first generation OFM.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Oriental fruit moth

  
  

Plum curculio (Shuck split)

• Materials: Use one of:
  • Guthion 50 WSB - see label
    or Sniper - see label
  • Assail 70 WP @ 240 g/ha
• Comments:Plum curculio is a sporadic pest of peaches and nectarines. Scout edges of orchards near woodlots and wild hosts in spring. Check small fruit for crescent-shaped egg laying scars. A border spray of 4-6 rows may provide sufficient control. Check developing fruit for new damage 7-10 days later.
  Assail: Under high insect pressure, may provide suppression rather than control of plum curculio.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Plum curculio
      

Peachtree borer(Shuck split)

• Materials: Use one of:
  • Isomate-P @ 250-625 dispensers/ha
• Comments:
• Isomate-P: Reduces mating of peachtree borer adults. Not effective on lesser peachtree borer. Initial population must be low for good results. Use in square or rectangular orchard blocks at least 4 ha in size; larger blocks are preferred.
  Apply pheromone dispensers before peach tree borer flight begins in the spring. The dispenser is designed to last an entire season, so early placement (shuck-split or earlier) will not reduce effectiveness. Attach the dispensers onto branches about the mid-point of the tree. Apply at least 250 dispensers per ha for low pressure sites and up to 625 dispensers per ha for high pressure sites. In addition to mating disruption, an insecticide for peachtree borer may be needed in high pressure sites. Populations are generally reduced over time where mating disruption is used for several seasons. For more information see Using mating disruption in fruit crops.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Peachtree borer
      

Brown rot (Shuck split)

• Materials: Use one of:
  • Topas 250 E @ 500 mL/ha
    or Mission 418 EC @ 300 mL/ha
  • Indar 75 WSP @ 140 g/ha
  • Vangard 75 WG @ 740 g/ha
  • Elevate 50 WDG @ 1.7 kg/ha
  • Lance WDG @ 370 g/ha
  • Pristine WG @ 750 g/ha
  • Rovral @ 1.5 kg/ha
  • Supra Captan 80 WDG @ 4.5 kg/ha
    or Maestro 80 DF @ 4.5 kg/ha
  • Microscopic Sulphur - see label
• Comments:Alternate among fungicide groups and do not use products from the same group in consecutive sprays.
  Spray again in 7 days if wet weather persists.
  Topas, Mission and Indar: Do not alternate among these products.
  Pristine and Lance: Do not alternate Pristine with Lance.
  Pristine: Do not apply where spray drift may reach Concord grapes as it may cause crop injury.
  Sulphur: May induce mite problems.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Brown rot

European red mite (Shuck split)

• Materials: Use one of:
  • Apollo SC @ 300 mL/ha
• Comments: If oil was applied in the spring, a miticide is likely not necessary at this time.
  Apollo: Most effective on eggs and newly hatched nymphs. Apply when leaf tissue is present, mites are mostly in the first summer generation egg stage and before there are three active mites per leaf. Use sufficient water volumes to obtain good coverage, but not less than 475 L/ha. Apply up to 14 days after petal fall.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Mites

Lesser peach tree borer, Peach tree borer(Shuck split)

• Materials: Use one of:
  • Thionex 50 W @ 1.5 kg/ 1,000 L
    or Thiodan 4 EC @ 1.75 L/ 1,000 L
  • Sevin XLR @ 6.25 L/ha
• Comments: Peachtree borers are sporadic pests. Spray in areas with high borer populations. Use pheromone traps to monitor adult activity and begin sprays one week after first flight. Make three applications at 5-10 day intervals. Direct these sprays with a handgun to cover trunk and scaffold limbs thoroughly; do not spray fruit. Do not apply second Thiodan spray to varieties in the Harrow Diamond and Garnet Beauty season; on these varieties use Sevin XLR. Do not use third Thiodan spray on varieties in the Sunhaven, Redhaven, Veecling and Vivid season; on these varieties use Sevin XLR. Sevin XLR is not registered for peachtree borer.
• Learn more:
  • Notes on Tender Fruit Insects & Diseases
    • Peach tree borers

Precautions

Read the product label and follow all safety precautions.

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.

Products are listed by fungicide and insecticide group. Use products from different groups to prevent pest resistance. For resistance management, refer to Pest Resistance to Insecticides, Fungicides, Miticides.

For preharvest interval, re-entry period, maximum number of applications and chemical group, see Table 7-8. Products Used on Peaches.

Related Links

• Integrated Pest Management (IPM)
• Pesticide Application and Safety
• Pesticide Companies and Agents
• Search the PMRA website
• Ontario Minor Use Program
• OMAFRA Publication 505: Ontario Weeds
• OMAFRA Publication 360: Fruit Production Recommendations