Codling moth – is a small grey moth. Pest insect wingspan reaches to 15-20 mm. Cydia pomonella moth has a nocturne activity. After 7-10 days of apple blooming period, pest insect moths lay eggs on the upper part of the apple leafs or on the lower surface of the pear leaf, and then on fruits.
Codling moth pest insect damage apple fruits their larva is also known as a common apple worm.
The eggs of pest insect are about 1 mm long translucent and later turning light-yellow. Larva hatch occurs in 7-17 days, depending on temperature. After that larva comes out, its appearance tan to pink, not more than 20 mm long.
First three – four days larva feeds with leafes, after that penetrates deep into fruits pulp and live inside about 3-5 weeks. Inside of the damaged fruits are tunnels made by larva, filled with brown excrements. Codling moth damage fruits causing premature drop. One larva of codling moth damage two-three fruits.
Larva develop to pupal stage in the begining of august. At the favorable weather conditions second emerge can occur, in the countries where climate is soft and warm, even third emerge might be.
Pupa hide on earth in fallen leafs and in tree bark in the lower part of the trunk at height till 20-30 cm. The following larva development depends on air temperature.
Apples, pears, plums and other.
- After it hatches, tunnel to core within 24 hours where it feeds on developing seeds, codling moth damage the fruit from inside that is why it is so dangerous.
- Attacked fruits drops prematurely; larva can finish its development in the dropped fruit
- When larva finishes development it may exit through entry hole or the new one and hide for pupation process
- Codling moth damage can be seen by the holes of fruits filled with brown excrements, usually conspicuous
It is very important to determine the start of pest insect flight (biofix – biological marking point from which codling moth development is measured).
Codling moth pheromone traps emit female pheromones that attract male moths and they get captured.
Pheromone traps are distributed in open field and greenhouses. Fruit fly traps increase time for pest insect male to find female, by this reducing fecundity.
Pest insect traps are placed in open field during blooming period, you have to make sure that pest insect have access to entrance and positioned paralel with wind direction.
Trap should be hanged every 5 acres for a better result.
Codling moth traps have to be hanged in center and at least one on the edge of the required open field to determine if moths are coming from outside or are overwintering inside garden.
Suspected places should be examined separately.
The pheromone trap has to be examined every 1 - 2 days.
Use: Open the packaging imediately before use. Put the dispenser in trap center on adhesive surface. Remove the used package from use zone of the dispenser.
Main pheromone component: E3,Z8,Z11-14:oAc – 95
Additional components: E3,Z8-14:oAc – 5
Carrier (dispenser) – Butyl rubber, natural rubber.
Three layers of airtight pellicle (polyethylene / aluminum / paper)
Conditions and terms of keeping:
from +10C° till +20С° – 6 months
from +4C° till +10С° – 12 months
from 0C° till +4С° – 24 months
at -18С° - 36 months and more.
Note: These terms are guaranteed in case the package is not damaged. Guarantee term of dispenser action in the field is of 4-6 weeks.