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Fruit Spray Schedules for the Homeowner

Peaches

Peaches, nectarines, plums, apricots

Peaches, nectarines, plums, apricots
Dormant sprays

Apply before buds swell in spring.

Mites, scale

  • Material
    dormant or summer oil
  • Comments
    Oil smothers overwintering eggs of mites and scale.
    Apply oil at temperatures above 40 degrees Fahrenheit and not within 14 days before or after using sulfur, or captan.

Peach leaf curl, plum pockets

key pests or pest complexes

A key pest
or pest complex

  • Material
    Bordeaux mixture
    or chlorothalonil
    or copper
  • Comments
    For peach leaf curl, apply at leaf drop in late fall, and 1 to 2 additional applications in mid- to late winter before bud swell.
    For plum pockets, use of resistant plum cultivars is the preferred control measure. But for susceptible cultivars, apply chlorothalonil (or Bordeaux mixture, or liquid lime-sulfur) before bud swell.
    Copper for peach leaf curl only. Apply as a dormant spray in late fall during a period of dry weather.

Peaches, nectarines, plums, apricots
Prebloom or 'popcorn' sprays

DormantApply when buds show white, pink or red.

Plant bugs, stink bugs

  • Material
    carbaryl
    or malathion
    or esfenvalerate
    or permethrin
    or gamma-cyhalothrin
  • Comments
    Plant bugs and stink bugs feed on swelling fruit and leaf buds, causing the buds to dry up. When fruit buds are damaged, blossoms may never open or may be deformed.
    Use permethrin on peaches only.

Brown rot, scab, leaf spot

  • Material
    captan
    or chlorothalonil
    or myclobutanil
    or sulfur
  • Comments
    For brown rot, use chlorothalonil, captan, myclobutanil or thiophanate-methyl.

Peaches, nectarines, plums, apricots
Bloom sprays

DormantApply when 25 percent of blossoms are open. Do not use insecticides during the bloom period — Save the bees.

Brown rot, scab

  • Material
    chlorothalonil
    or captan
    or myclobutanil
    or sulfur
    or thiophanate-methyl
    or propiconazole
  • Comments
    See comments in "prebloom" section.
    For propiconazole, start applications in early spring, and spray every 21 days, making no more than 4 applications.

Powdery mildew, leaf spot

  • Material
    myclobutanil
    or sulfur
    or thiophanate-methyl
    or propiconazole
  • Comments
    For powdery mildew, sulfur provides good control.
    For propiconazole, start applications in early spring, and spray every 21 days, making no more than 4 applications.

Peaches, nectarines, plums, apricots
Petal-fall sprays

DormantApply when most of blossom petals have fallen.

Oriental fruit moth, plum curculio

key pests or pest complexes

A key pest
or pest complex

  • Material
    carbaryl
    or malathion
    or esfenvalerate
    or permethrin
    or spinosad
    or gamma-cyhalothrin
  • Comments
    Adult oriental fruit moth begin emerging in mid-April. First generation larva enter at a leaf axil near the tip of a shoot and bores down the central core for several inches, causing the terminal to wilt or "flag."
    Surface feeding by overwintering adult plum curculio can scar or misshape the fruit by harvest, while feeding by the larvae causes premature fruit drop.
    Use permethrin on peaches only.
    Spinosad for oriental fruit moth only.

Plant bugs, stink bugs

key pests or pest complexes

A key pest
or pest complex

  • Material
    carbaryl
    or malathion
    or esfenvalerate
    or permethrin
    or gamma-cyhalothrin
  • Comments
    Feeding on small fruit by plant bugs and stink bugs causes the fruit to fall or become scarred and malformed (cat-facing) as they grow. Populations of plant bugs are worst where weed control is poorest. Keep weeds mowed regularly.
    Use permethrin on peaches only.

Coryneium blight

  • Material
    chlorothalonil
  • Comments
    Apply 1 to 2 weeks after petal fall or at shuck-split.

Brown rot, scab

  • Material
    chlorothalonil
    or captan
    or myclobutanil
    or sulfur
    or thiophanate-methyl
    or propiconazole
  • Comments
    Make one additional application for scab at shuck-split.

Peaches, nectarines, plums, apricots
Shuck-split sprays

DormantApply about 10 days after petal-fall spray.

Brown rot, scab

  • Material
    captan
    or myclobutanil
    or sulfur
    or thiophanate-methyl
  • Comments
    Observe intervals between last application and harvest.

Mites

  • Material
    summer oil
    or insecticidal soap
    or pyrethrins and rotenone
  • Comments
    To prevent damage to foliage or fruits, never use a summer oil with captan, carbaryl, or other sulfur-containing pesticides. Allow at least 14 days between applications of sulfur-containing compounds and the use of a summer oil. Apply oil at temperatures above 40 degrees Fahrenheit and below 90 degrees Fahrenheit.
    For insecticidal soap repeat application 3 to 4 days later.
    For pyrethrin and rotenone premix, repeat application every 5 to 10 days or as needed, do not apply within 1 day of harvest.

Plum curculio oriental fruit moth

key pests or pest complexes

A key pest
or pest complex

  • Material
    esfenvalerate
    or malathion
    or carbaryl
    or permethrin
    or spinosad
    or gamma-cyhalothrin
  • Comments
    See comments in "petal-fall sprays" section.
    Spinosad for oriental fruit moth only.

Plant bugs, stink bugs

key pests or pest complexes

A key pest
or pest complex

  • Material
    carbaryl
    or malathion
    or esfenvalerate
    or permethrin
  • Comments
    See comments in "petal-fall sprays" section.

Powdery mildew

  • Material
    myclobutanil
    or sulfur
    or thiophanate-methyl

Peaches, nectarines, plums, apricots
First and second cover sprays

Apply 10 days after shuck-split and again 10 days later.

Plum curculio, oriental fruit moth

key pests or pest complexes

A key pest
or pest complex

  • Material
    carbaryl
    or malathion
    or esfenvalerate
    or permethrin
    or spinosad
    or gamma-cyhalothrin
  • Comments
    See comments in "petal-fall sprays" section.
    Spinosad for oriental fruit moth only.

Plant bugs, stink bugs

key pests or pest complexes

A key pest
or pest complex

  • Material
    carbaryl
    or malathion
    or esfenvalerate
    or spinosad
    or gamma-cyhalothrin
  • Comments
    See comments in "petal-fall sprays" section.

Mites

  • Material
    summer oil
    or insecticidal soap
    or pyrethrins and rotenone
  • Comments
    See comments in "shuck-split" section.

Lesser peachtree borer

  • Material
    carbaryl
    or esfenvalerate
    or permethrin
  • Comments
    or spinosad
    or gamma-cyhalothrin
  • Comments
    Adult moths typically begin to emerge in mid-May (mid-Missouri); apply weekly sprays during moth flight (through June). Larvae can become established only in damaged tissue (pruning wounds, cankered areas, sun-scalded bark, etc.). Once established, the larvae feed on growing bark and may enlarge the damaged area, often girdling the limb
    Direct sprays from ground level up the trunk and including the main scaffold limbs, wetting the bark thoroughly.

Brown rot, scab

  • Material
    captan
    or myclobutanil
    or sulfur
    or thiophanate-methyl

Peaches, nectarines, plums, apricots
Summer cover sprays

Apply at 10- to 14-day intervals.

Oriental fruit moth

key pests or pest complexes

A key pest
or pest complex

  • Material
    carbaryl
    or malathion
    or esfenvalerate
    or permethrin
    or spinosad
    or gamma-cyhalothrin
  • Comments
    Later-generation oriental fruit moth larvae may enter the fruit near the stem end and make feeding burrows that often extend to the pit.

Mites

  • Material
    summer oil
    or insecticidal soap
    or pyrethrins and rotenone
  • Comments
    See comments in "shuck-split" section.

Powdery mildew

  • Material
    sulfur
    or propiconazole
  • Days between last application and harvest
    Table 2

Aphids

  • Material
    malathion
    or insecticidal soap
    or neem
    or pyrethrins and rotenone

Brown rot

  • Material
    captan
    or myclobutanil
    or sulfur
    or thiophanate-methyl
  • Days between last application and harvest
    Table 2

Peaches, nectarines, plums, apricots
Preharvest sprays

Apply 1 to 2 weeks before harvest.

Green June beetle. Japanese beetle

  • Material
    carbaryl
    or malathion
    or neem
    or pyrethrins and rotenone
    or gamma-cyhalothrin
  • Comments
    Adult green June beetles and Japanese beetles can feed on both green and ripening fruit.
  • Days between last application and harvest
    Table 2

Oriental fruit moth

  • Material
    carbaryl
    or malathion
    or esfenvalerate
    or permethrin
    or spinosad
  • Comments
    Adult flights of oriental fruit moth may occur at this time.
  • Days between last application and harvest
    Table 2

Aphids

  • Material
    carbaryl
    or insecticidal soap
    or neem
    or pyrethrins and rotenone
  • Comments
    See comments in "summer cover sprays" section.
  • Days between last application and harvest
    Table 2

G6010, reviewed March 2011

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