The Codling Moth, or Cydia (Laspeyresia) pomonella is an insect that primarily infests apples, pears, English walnuts and rarely cherries, leaving its excrement called “Frass”. Codling Moths have an extensive distribution all over the world. These pests can be found mostly in Northern America, Europe, and Southern Russia.

1. The Codling Moth
Control: The WormIn
The Apple
Online Pest Control

2. What Are Codling Moths?
The Codling Moth, or Cydia
(Laspeyresia) pomonella is an insect
that primarily infests apples, pears,
English walnuts and rarely cherries,
leaving its excrement called “Frass”.
Codling Moths have an extensive
distribution all over the world. These
pests can be found mostly in Northern
America, Europe, and Southern Russia.

3. Life Cycle of Codling Moths
The Codling Moth develops through
four stages: eggs, larva, pupa and adult
moth. The full-grown larva develops
into an adult moth during the winter
inside a silken cocoon, pupating on tree
trunks under the bark, in the soil or on
debris under the tree.
The rate of development of the larva
inside the cocoon proceeds more
rapidly during warmer weather and
climates.

4. Life Cycle of Codling Moths
Mating of Codling Moths transpire a
few days after the emergence of the
full-grown insect from the cocoon,
which follows impregnation and the
laying of eggs.
The tendency of laying eggs increases
as the temperature increases above
620F during the night

5. Identification of Codling Moths
A full-grown adult Codling Moth
measures about ½ to ¾ inch long with
spotted gray wings with brown tips,
which shroud its body. The larvae are
white to light pink colour caterpillar-
like “worms” with dark brown heads.
The instar larva is 1/10 inches while a
full-grown larva is ½ to ¾ inches. The
larval stage is followed by the pupating
stage, where the larva creates a cocoon
and pupates through winter.

6. Controlling Codling Moths
If left unmanaged, Codling Moth larvae
can cause extensive damage, often
infesting 20%-90% of the fruit. The
extension of the damage is often
dependent on variety and location of
the trees.
Codling Moths can be difficult to
control if the population has been
allowed to build up over one or two
seasons. It seems more pragmatic to
manage a smaller Codling Moth
population than suppressing a dense
population.

7. Controlling Codling Moths
Cultural control of Codling Moths
include the removal and destruction of
infested trees and fruits.
The bagging method has proven
effective to be used alone for higher
population, although it could be
regarded as time-consuming.
This method should be implemented
when the fruit is about ½ to 1 inch in
diameter.
Cultural Control For Codling Moths

8. Controlling Codling Moths
Releasing of the tiny
wasp Trichogramma platneri implemen
ted with mating disruption or soft
pesticides could be used to manage
Codling Moths as a Biological Control.
Cultural Control For Codling Moths

9. Controlling Codling Moths
Conventional insecticides to control
Codling Moths include products such
as Cabaryl, Imidan, Sevin, Permethrin,
and Malathion.
Moreover, Horticulture mineral oil,
organic materials such as Spinosad,
Entrust, and products such as Intrepid
(methoxyfenozide) and Esteem
(pyriproxifen) with low toxicity could
be used in lieu of or along with strong
toxins.
Insecticides

10. Controlling Codling Moths
These insecticides are available at
stores and online. However, it is
precautionary to research and consult
a pest control professional before
usage of these chemical-based
products.
Insecticides

11. Further Information
Pest and Disease Control inApple Trees
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