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Old 26-10-2007, 02:45 AM posted to aus.gardens
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Posts: 6
Default Codling moth

Hi all, anyone here grow apples, and if so, what do you do about codling
moth? thanks any feedback


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Old 26-10-2007, 03:58 AM posted to aus.gardens
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First recorded activity by GardenBanter: Apr 2007
Posts: 186
Default Codling moth



whiteMemphis wrote:
Hi all, anyone here grow apples, and if so, what do you do about codling
moth? thanks any feedback


Codling moth is not a great candidate for biological pest control, as
the larvae are well protected within the fruit for the majority of
development. However, codling moth eggs are susceptible to biological
control by Trichogramma wasps. The wasps deposit their eggs into codling
moth eggs, and the developing wasp larvae consume the moth embryo
inside. Another method for control and sampling, 'trunk banding',
consists of wrapping a corrugated cardboard strip around the tree trunk.
Larvae making their way back to the tree to pupate after the infested
fruits are aborted will use bands as pupation sites. Bands may then be
removed and burned.

Codling moth infestations are often managed with pesticides. Successful
synthesis of codlemone, the codling moth female sex pheromone blend, has
led to behaviorally based monitoring and management. Pheromone traps are
used to capture male moths for monitoring and setting biofix, which is
the time of first flight for codling moth. Biofix is used with weather
data to run degree day models (see below) which predict with excellent
accuracy the phenology of the population in the field, thereby allowing
growers to time their management actions to target codling moth when
they are most susceptible. A kairomone which is a feeding attractant can
be used to capture males and females (DA lure). Mating disruption can be
used to effectively manage codling moth populations in many cases.
Mating disruption involves the use of a pheromone impregnated release
device, typically made of plastic or rubber. Dispensers are distributed
throughout the orchard and emit female pheromone at a high, relatively
constant rate. The mechanism by which mating disruption affects males is
poorly understood, it may increase the time required for males to find
females, thus reducing fecundity, or it may simply mask the position of
females to searching males, reducing mating substantially.

Recent trials of non-toxic kaolin clay-based sprays indicate that an
effective alternative means of codling moth suppression may be on the
horizon. Codling moth and other pests find leaves and fruit covered in
kaolin clay unfit for laying eggs. Tiny particles of the clay tend to
attach to their bodies, disturbing and repelling them. In addition,
trees covered in kaolin clay can make them less recognizable as habitat
to codling moths. Full coverage of trees is necessary in order to
achieve effective suppression. If used only at the beginning of the
fruit growing season, kaolin clay often comes off by itself due to wind
and rain attrition, leaving fruit clean at harvest time.

The prime difficulty in dealing with codling moth infestations seems to
lie with appropriate timing. The method of calculating 'degree-days' is
often used by orchardists to approximate when a particular pest will
reach a particular stage of development during a given season. Since
stages of insect development are triggered by the accumulation of a
certain amount of heat over time, this calculation involves careful
tracking of changes in daily temperature. In the case of codling moth,
pupating larvae emerging from bark and other overwintering spaces will
migrate and burrow into apples soon after petal fall. For a given larva,
this migration takes place within a mere two to three hours. Effective
control using any method therefore depends crucially on identifying when
decisive moments such as these occur.
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Old 29-10-2007, 12:50 AM posted to aus.gardens
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First recorded activity by GardenBanter: Mar 2007
Posts: 6
Default Codling moth

Many thanks for this comprehensive reply, gives a good insight into the
scope of the problem, you wouldn't happen to know where I could get the
pheromone trap material by any chance, thanks again.

"Jonno" wrote in message
...


whiteMemphis wrote:
Hi all, anyone here grow apples, and if so, what do you do about
codling moth? thanks any feedback

Codling moth is not a great candidate for biological pest control, as the
larvae are well protected within the fruit for the majority of
development. However, codling moth eggs are susceptible to biological
control by Trichogramma wasps. The wasps deposit their eggs into codling
moth eggs, and the developing wasp larvae consume the moth embryo inside.
Another method for control and sampling, 'trunk banding', consists of
wrapping a corrugated cardboard strip around the tree trunk. Larvae making
their way back to the tree to pupate after the infested fruits are aborted
will use bands as pupation sites. Bands may then be removed and burned.

Codling moth infestations are often managed with pesticides. Successful
synthesis of codlemone, the codling moth female sex pheromone blend, has
led to behaviorally based monitoring and management. Pheromone traps are
used to capture male moths for monitoring and setting biofix, which is the
time of first flight for codling moth. Biofix is used with weather data to
run degree day models (see below) which predict with excellent accuracy
the phenology of the population in the field, thereby allowing growers to
time their management actions to target codling moth when they are most
susceptible. A kairomone which is a feeding attractant can be used to
capture males and females (DA lure). Mating disruption can be used to
effectively manage codling moth populations in many cases. Mating
disruption involves the use of a pheromone impregnated release device,
typically made of plastic or rubber. Dispensers are distributed throughout
the orchard and emit female pheromone at a high, relatively constant rate.
The mechanism by which mating disruption affects males is poorly
understood, it may increase the time required for males to find females,
thus reducing fecundity, or it may simply mask the position of females to
searching males, reducing mating substantially.

Recent trials of non-toxic kaolin clay-based sprays indicate that an
effective alternative means of codling moth suppression may be on the
horizon. Codling moth and other pests find leaves and fruit covered in
kaolin clay unfit for laying eggs. Tiny particles of the clay tend to
attach to their bodies, disturbing and repelling them. In addition, trees
covered in kaolin clay can make them less recognizable as habitat to
codling moths. Full coverage of trees is necessary in order to achieve
effective suppression. If used only at the beginning of the fruit growing
season, kaolin clay often comes off by itself due to wind and rain
attrition, leaving fruit clean at harvest time.

The prime difficulty in dealing with codling moth infestations seems to
lie with appropriate timing. The method of calculating 'degree-days' is
often used by orchardists to approximate when a particular pest will reach
a particular stage of development during a given season. Since stages of
insect development are triggered by the accumulation of a certain amount
of heat over time, this calculation involves careful tracking of changes
in daily temperature. In the case of codling moth, pupating larvae
emerging from bark and other overwintering spaces will migrate and burrow
into apples soon after petal fall. For a given larva, this migration takes
place within a mere two to three hours. Effective control using any method
therefore depends crucially on identifying when decisive moments such as
these occur.



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Old 29-10-2007, 10:24 AM posted to aus.gardens
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First recorded activity by GardenBanter: Apr 2007
Posts: 186
Default Codling moth

Depends on where you live.
http://www.google.com.au/search?num=...cr%3DcountryAU
I googled this and found these answers.
If you cant find sellers here. I will try to find it for you...

whiteMemphis wrote:
Many thanks for this comprehensive reply, gives a good insight into the
scope of the problem, you wouldn't happen to know where I could get the
pheromone trap material by any chance, thanks again.

"Jonno" wrote in message
...

whiteMemphis wrote:
Hi all, anyone here grow apples, and if so, what do you do about
codling moth? thanks any feedback

Codling moth is not a great candidate for biological pest control, as the
larvae are well protected within the fruit for the majority of
development. However, codling moth eggs are susceptible to biological
control by Trichogramma wasps. The wasps deposit their eggs into codling
moth eggs, and the developing wasp larvae consume the moth embryo inside.
Another method for control and sampling, 'trunk banding', consists of
wrapping a corrugated cardboard strip around the tree trunk. Larvae making
their way back to the tree to pupate after the infested fruits are aborted
will use bands as pupation sites. Bands may then be removed and burned.

Codling moth infestations are often managed with pesticides. Successful
synthesis of codlemone, the codling moth female sex pheromone blend, has
led to behaviorally based monitoring and management. Pheromone traps are
used to capture male moths for monitoring and setting biofix, which is the
time of first flight for codling moth. Biofix is used with weather data to
run degree day models (see below) which predict with excellent accuracy
the phenology of the population in the field, thereby allowing growers to
time their management actions to target codling moth when they are most
susceptible. A kairomone which is a feeding attractant can be used to
capture males and females (DA lure). Mating disruption can be used to
effectively manage codling moth populations in many cases. Mating
disruption involves the use of a pheromone impregnated release device,
typically made of plastic or rubber. Dispensers are distributed throughout
the orchard and emit female pheromone at a high, relatively constant rate.
The mechanism by which mating disruption affects males is poorly
understood, it may increase the time required for males to find females,
thus reducing fecundity, or it may simply mask the position of females to
searching males, reducing mating substantially.

Recent trials of non-toxic kaolin clay-based sprays indicate that an
effective alternative means of codling moth suppression may be on the
horizon. Codling moth and other pests find leaves and fruit covered in
kaolin clay unfit for laying eggs. Tiny particles of the clay tend to
attach to their bodies, disturbing and repelling them. In addition, trees
covered in kaolin clay can make them less recognizable as habitat to
codling moths. Full coverage of trees is necessary in order to achieve
effective suppression. If used only at the beginning of the fruit growing
season, kaolin clay often comes off by itself due to wind and rain
attrition, leaving fruit clean at harvest time.

The prime difficulty in dealing with codling moth infestations seems to
lie with appropriate timing. The method of calculating 'degree-days' is
often used by orchardists to approximate when a particular pest will reach
a particular stage of development during a given season. Since stages of
insect development are triggered by the accumulation of a certain amount
of heat over time, this calculation involves careful tracking of changes
in daily temperature. In the case of codling moth, pupating larvae
emerging from bark and other overwintering spaces will migrate and burrow
into apples soon after petal fall. For a given larva, this migration takes
place within a mere two to three hours. Effective control using any method
therefore depends crucially on identifying when decisive moments such as
these occur.



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Old 29-10-2007, 10:27 AM posted to aus.gardens
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First recorded activity by GardenBanter: Apr 2007
Posts: 186
Default Codling moth

Depends on where you live.

Try here its in Queensland http://www.bioresources.com.au/default.htm

whiteMemphis wrote:
Many thanks for this comprehensive reply, gives a good insight into the
scope of the problem, you wouldn't happen to know where I could get the
pheromone trap material by any chance, thanks again.

"Jonno" wrote in message
...

whiteMemphis wrote:
Hi all, anyone here grow apples, and if so, what do you do about
codling moth? thanks any feedback

Codling moth is not a great candidate for biological pest control, as the
larvae are well protected within the fruit for the majority of
development. However, codling moth eggs are susceptible to biological
control by Trichogramma wasps. The wasps deposit their eggs into codling
moth eggs, and the developing wasp larvae consume the moth embryo inside.
Another method for control and sampling, 'trunk banding', consists of
wrapping a corrugated cardboard strip around the tree trunk. Larvae making
their way back to the tree to pupate after the infested fruits are aborted
will use bands as pupation sites. Bands may then be removed and burned.

Codling moth infestations are often managed with pesticides. Successful
synthesis of codlemone, the codling moth female sex pheromone blend, has
led to behaviorally based monitoring and management. Pheromone traps are
used to capture male moths for monitoring and setting biofix, which is the
time of first flight for codling moth. Biofix is used with weather data to
run degree day models (see below) which predict with excellent accuracy
the phenology of the population in the field, thereby allowing growers to
time their management actions to target codling moth when they are most
susceptible. A kairomone which is a feeding attractant can be used to
capture males and females (DA lure). Mating disruption can be used to
effectively manage codling moth populations in many cases. Mating
disruption involves the use of a pheromone impregnated release device,
typically made of plastic or rubber. Dispensers are distributed throughout
the orchard and emit female pheromone at a high, relatively constant rate.
The mechanism by which mating disruption affects males is poorly
understood, it may increase the time required for males to find females,
thus reducing fecundity, or it may simply mask the position of females to
searching males, reducing mating substantially.

Recent trials of non-toxic kaolin clay-based sprays indicate that an
effective alternative means of codling moth suppression may be on the
horizon. Codling moth and other pests find leaves and fruit covered in
kaolin clay unfit for laying eggs. Tiny particles of the clay tend to
attach to their bodies, disturbing and repelling them. In addition, trees
covered in kaolin clay can make them less recognizable as habitat to
codling moths. Full coverage of trees is necessary in order to achieve
effective suppression. If used only at the beginning of the fruit growing
season, kaolin clay often comes off by itself due to wind and rain
attrition, leaving fruit clean at harvest time.

The prime difficulty in dealing with codling moth infestations seems to
lie with appropriate timing. The method of calculating 'degree-days' is
often used by orchardists to approximate when a particular pest will reach
a particular stage of development during a given season. Since stages of
insect development are triggered by the accumulation of a certain amount
of heat over time, this calculation involves careful tracking of changes
in daily temperature. In the case of codling moth, pupating larvae
emerging from bark and other overwintering spaces will migrate and burrow
into apples soon after petal fall. For a given larva, this migration takes
place within a mere two to three hours. Effective control using any method
therefore depends crucially on identifying when decisive moments such as
these occur.





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Old 29-10-2007, 10:28 AM posted to aus.gardens
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First recorded activity by GardenBanter: Apr 2007
Posts: 186
Default Codling moth

A good place to start I reckon.

http://www.bioresources.com.au/Carve...raeGeneral.htm

whiteMemphis wrote:
Many thanks for this comprehensive reply, gives a good insight into the
scope of the problem, you wouldn't happen to know where I could get the
pheromone trap material by any chance, thanks again.

"Jonno" wrote in message
...

whiteMemphis wrote:
Hi all, anyone here grow apples, and if so, what do you do about
codling moth? thanks any feedback

Codling moth is not a great candidate for biological pest control, as the
larvae are well protected within the fruit for the majority of
development. However, codling moth eggs are susceptible to biological
control by Trichogramma wasps. The wasps deposit their eggs into codling
moth eggs, and the developing wasp larvae consume the moth embryo inside.
Another method for control and sampling, 'trunk banding', consists of
wrapping a corrugated cardboard strip around the tree trunk. Larvae making
their way back to the tree to pupate after the infested fruits are aborted
will use bands as pupation sites. Bands may then be removed and burned.

Codling moth infestations are often managed with pesticides. Successful
synthesis of codlemone, the codling moth female sex pheromone blend, has
led to behaviorally based monitoring and management. Pheromone traps are
used to capture male moths for monitoring and setting biofix, which is the
time of first flight for codling moth. Biofix is used with weather data to
run degree day models (see below) which predict with excellent accuracy
the phenology of the population in the field, thereby allowing growers to
time their management actions to target codling moth when they are most
susceptible. A kairomone which is a feeding attractant can be used to
capture males and females (DA lure). Mating disruption can be used to
effectively manage codling moth populations in many cases. Mating
disruption involves the use of a pheromone impregnated release device,
typically made of plastic or rubber. Dispensers are distributed throughout
the orchard and emit female pheromone at a high, relatively constant rate.
The mechanism by which mating disruption affects males is poorly
understood, it may increase the time required for males to find females,
thus reducing fecundity, or it may simply mask the position of females to
searching males, reducing mating substantially.

Recent trials of non-toxic kaolin clay-based sprays indicate that an
effective alternative means of codling moth suppression may be on the
horizon. Codling moth and other pests find leaves and fruit covered in
kaolin clay unfit for laying eggs. Tiny particles of the clay tend to
attach to their bodies, disturbing and repelling them. In addition, trees
covered in kaolin clay can make them less recognizable as habitat to
codling moths. Full coverage of trees is necessary in order to achieve
effective suppression. If used only at the beginning of the fruit growing
season, kaolin clay often comes off by itself due to wind and rain
attrition, leaving fruit clean at harvest time.

The prime difficulty in dealing with codling moth infestations seems to
lie with appropriate timing. The method of calculating 'degree-days' is
often used by orchardists to approximate when a particular pest will reach
a particular stage of development during a given season. Since stages of
insect development are triggered by the accumulation of a certain amount
of heat over time, this calculation involves careful tracking of changes
in daily temperature. In the case of codling moth, pupating larvae
emerging from bark and other overwintering spaces will migrate and burrow
into apples soon after petal fall. For a given larva, this migration takes
place within a mere two to three hours. Effective control using any method
therefore depends crucially on identifying when decisive moments such as
these occur.



  #7   Report Post  
Old 29-10-2007, 10:29 AM posted to aus.gardens
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First recorded activity by GardenBanter: Apr 2007
Posts: 186
Default Codling moth

PS I googled the info. And edited it slightly. Saves so much time.

whiteMemphis wrote:
Many thanks for this comprehensive reply, gives a good insight into the
scope of the problem, you wouldn't happen to know where I could get the
pheromone trap material by any chance, thanks again.

"Jonno" wrote in message
...

whiteMemphis wrote:
Hi all, anyone here grow apples, and if so, what do you do about
codling moth? thanks any feedback

Codling moth is not a great candidate for biological pest control, as the
larvae are well protected within the fruit for the majority of
development. However, codling moth eggs are susceptible to biological
control by Trichogramma wasps. The wasps deposit their eggs into codling
moth eggs, and the developing wasp larvae consume the moth embryo inside.
Another method for control and sampling, 'trunk banding', consists of
wrapping a corrugated cardboard strip around the tree trunk. Larvae making
their way back to the tree to pupate after the infested fruits are aborted
will use bands as pupation sites. Bands may then be removed and burned.

Codling moth infestations are often managed with pesticides. Successful
synthesis of codlemone, the codling moth female sex pheromone blend, has
led to behaviorally based monitoring and management. Pheromone traps are
used to capture male moths for monitoring and setting biofix, which is the
time of first flight for codling moth. Biofix is used with weather data to
run degree day models (see below) which predict with excellent accuracy
the phenology of the population in the field, thereby allowing growers to
time their management actions to target codling moth when they are most
susceptible. A kairomone which is a feeding attractant can be used to
capture males and females (DA lure). Mating disruption can be used to
effectively manage codling moth populations in many cases. Mating
disruption involves the use of a pheromone impregnated release device,
typically made of plastic or rubber. Dispensers are distributed throughout
the orchard and emit female pheromone at a high, relatively constant rate.
The mechanism by which mating disruption affects males is poorly
understood, it may increase the time required for males to find females,
thus reducing fecundity, or it may simply mask the position of females to
searching males, reducing mating substantially.

Recent trials of non-toxic kaolin clay-based sprays indicate that an
effective alternative means of codling moth suppression may be on the
horizon. Codling moth and other pests find leaves and fruit covered in
kaolin clay unfit for laying eggs. Tiny particles of the clay tend to
attach to their bodies, disturbing and repelling them. In addition, trees
covered in kaolin clay can make them less recognizable as habitat to
codling moths. Full coverage of trees is necessary in order to achieve
effective suppression. If used only at the beginning of the fruit growing
season, kaolin clay often comes off by itself due to wind and rain
attrition, leaving fruit clean at harvest time.

The prime difficulty in dealing with codling moth infestations seems to
lie with appropriate timing. The method of calculating 'degree-days' is
often used by orchardists to approximate when a particular pest will reach
a particular stage of development during a given season. Since stages of
insect development are triggered by the accumulation of a certain amount
of heat over time, this calculation involves careful tracking of changes
in daily temperature. In the case of codling moth, pupating larvae
emerging from bark and other overwintering spaces will migrate and burrow
into apples soon after petal fall. For a given larva, this migration takes
place within a mere two to three hours. Effective control using any method
therefore depends crucially on identifying when decisive moments such as
these occur.



  #8   Report Post  
Old 29-10-2007, 10:31 AM posted to aus.gardens
external usenet poster
 
First recorded activity by GardenBanter: Apr 2007
Posts: 186
Default Codling moth

Jonno wrote:
Depends on where you live.

Try here its in Queensland: http://www.bioresources.com.au/default.htm
A good place to start I reckon.

Once mo http://www.bioresources.com.au/Carve...raeGeneral.htm

PS I googled the info. And edited it slightly. Saves so much time.






whiteMemphis wrote:
Many thanks for this comprehensive reply, gives a good insight into
the scope of the problem, you wouldn't happen to know where I could
get the pheromone trap material by any chance, thanks again.

"Jonno" wrote in message
...

whiteMemphis wrote:
Hi all, anyone here grow apples, and if so, what do you do about
codling moth? thanks any feedback
Codling moth is not a great candidate for biological pest control,
as the larvae are well protected within the fruit for the majority of
development. However, codling moth eggs are susceptible to biological
control by Trichogramma wasps. The wasps deposit their eggs into
codling moth eggs, and the developing wasp larvae consume the moth
embryo inside. Another method for control and sampling, 'trunk
banding', consists of wrapping a corrugated cardboard strip around
the tree trunk. Larvae making their way back to the tree to pupate
after the infested fruits are aborted will use bands as pupation
sites. Bands may then be removed and burned.

Codling moth infestations are often managed with pesticides.
Successful synthesis of codlemone, the codling moth female sex
pheromone blend, has led to behaviorally based monitoring and
management. Pheromone traps are used to capture male moths for
monitoring and setting biofix, which is the time of first flight for
codling moth. Biofix is used with weather data to run degree day
models (see below) which predict with excellent accuracy the
phenology of the population in the field, thereby allowing growers to
time their management actions to target codling moth when they are
most susceptible. A kairomone which is a feeding attractant can be
used to capture males and females (DA lure). Mating disruption can be
used to effectively manage codling moth populations in many cases.
Mating disruption involves the use of a pheromone impregnated release
device, typically made of plastic or rubber. Dispensers are
distributed throughout the orchard and emit female pheromone at a
high, relatively constant rate. The mechanism by which mating
disruption affects males is poorly understood, it may increase the
time required for males to find females, thus reducing fecundity, or
it may simply mask the position of females to searching males,
reducing mating substantially.

Recent trials of non-toxic kaolin clay-based sprays indicate that an
effective alternative means of codling moth suppression may be on the
horizon. Codling moth and other pests find leaves and fruit covered
in kaolin clay unfit for laying eggs. Tiny particles of the clay tend
to attach to their bodies, disturbing and repelling them. In
addition, trees covered in kaolin clay can make them less
recognizable as habitat to codling moths. Full coverage of trees is
necessary in order to achieve effective suppression. If used only at
the beginning of the fruit growing season, kaolin clay often comes
off by itself due to wind and rain attrition, leaving fruit clean at
harvest time.

The prime difficulty in dealing with codling moth infestations seems
to lie with appropriate timing. The method of calculating
'degree-days' is often used by orchardists to approximate when a
particular pest will reach a particular stage of development during a
given season. Since stages of insect development are triggered by the
accumulation of a certain amount of heat over time, this calculation
involves careful tracking of changes in daily temperature. In the
case of codling moth, pupating larvae emerging from bark and other
overwintering spaces will migrate and burrow into apples soon after
petal fall. For a given larva, this migration takes place within a
mere two to three hours. Effective control using any method therefore
depends crucially on identifying when decisive moments such as these
occur.



  #9   Report Post  
Old 29-10-2007, 10:34 AM posted to aus.gardens
external usenet poster
 
First recorded activity by GardenBanter: Apr 2007
Posts: 186
Default Codling moth



Jonno wrote:
Depends on where you live.
Try here its in Queensland:
http://www.bioresources.com.au/Other...secticides.htm
A good place to start I reckon.
Also: http://www.bioresources.com.au/Carve...raeGeneral.htm
and this webpage: http://www.bioresources.com.au/default.htm
PS I googled the info. And edited it slightly. Saves so much time.



whiteMemphis wrote:
Many thanks for this comprehensive reply, gives a good insight into
the scope of the problem, you wouldn't happen to know where I could
get the pheromone trap material by any chance, thanks again.

"Jonno" wrote in message
...

whiteMemphis wrote:
Hi all, anyone here grow apples, and if so, what do you do
about codling moth? thanks any feedback
Codling moth is not a great candidate for biological pest control,
as the larvae are well protected within the fruit for the majority
of development. However, codling moth eggs are susceptible to
biological control by Trichogramma wasps. The wasps deposit their
eggs into codling moth eggs, and the developing wasp larvae consume
the moth embryo inside. Another method for control and sampling,
'trunk banding', consists of wrapping a corrugated cardboard strip
around the tree trunk. Larvae making their way back to the tree to
pupate after the infested fruits are aborted will use bands as
pupation sites. Bands may then be removed and burned.

Codling moth infestations are often managed with pesticides.
Successful synthesis of codlemone, the codling moth female sex
pheromone blend, has led to behaviorally based monitoring and
management. Pheromone traps are used to capture male moths for
monitoring and setting biofix, which is the time of first flight for
codling moth. Biofix is used with weather data to run degree day
models (see below) which predict with excellent accuracy the
phenology of the population in the field, thereby allowing growers
to time their management actions to target codling moth when they
are most susceptible. A kairomone which is a feeding attractant can
be used to capture males and females (DA lure). Mating disruption
can be used to effectively manage codling moth populations in many
cases. Mating disruption involves the use of a pheromone impregnated
release device, typically made of plastic or rubber. Dispensers are
distributed throughout the orchard and emit female pheromone at a
high, relatively constant rate. The mechanism by which mating
disruption affects males is poorly understood, it may increase the
time required for males to find females, thus reducing fecundity, or
it may simply mask the position of females to searching males,
reducing mating substantially.

Recent trials of non-toxic kaolin clay-based sprays indicate that an
effective alternative means of codling moth suppression may be on
the horizon. Codling moth and other pests find leaves and fruit
covered in kaolin clay unfit for laying eggs. Tiny particles of the
clay tend to attach to their bodies, disturbing and repelling them.
In addition, trees covered in kaolin clay can make them less
recognizable as habitat to codling moths. Full coverage of trees is
necessary in order to achieve effective suppression. If used only at
the beginning of the fruit growing season, kaolin clay often comes
off by itself due to wind and rain attrition, leaving fruit clean at
harvest time.

The prime difficulty in dealing with codling moth infestations seems
to lie with appropriate timing. The method of calculating
'degree-days' is often used by orchardists to approximate when a
particular pest will reach a particular stage of development during
a given season. Since stages of insect development are triggered by
the accumulation of a certain amount of heat over time, this
calculation involves careful tracking of changes in daily
temperature. In the case of codling moth, pupating larvae emerging
from bark and other overwintering spaces will migrate and burrow
into apples soon after petal fall. For a given larva, this migration
takes place within a mere two to three hours. Effective control
using any method therefore depends crucially on identifying when
decisive moments such as these occur.


  #10   Report Post  
Old 01-11-2007, 03:58 AM posted to aus.gardens
external usenet poster
 
First recorded activity by GardenBanter: Mar 2007
Posts: 6
Default Codling moth


Many thanks all the leads, will follow up-

"Jonno" wrote in message
u...
Depends on where you live.
http://www.google.com.au/search?num=...cr%3DcountryAU
I googled this and found these answers.
If you cant find sellers here. I will try to find it for you...

whiteMemphis wrote:
Many thanks for this comprehensive reply, gives a good insight into the
scope of the problem, you wouldn't happen to know where I could get the
pheromone trap material by any chance, thanks again.

"Jonno" wrote in message



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