The codling moth is a major pest in organic fruit growing. The pest attacks apples, pears, walnuts, and other crops, causing economic losses in fruit production. The susceptibility of pears to codling moths can vary between young and older fruits.
Solution
Several control measures can be used in organic pear growing, combining preventive and direct control measures.
Description
Using a decision support system in combination with appropriate control measures will diminish damage and reduce population build-up.
Practical recommendations
Susceptibility of pears
• Research shows that penetration of the larvae in young Conference pears doesn’t succeed in the first weeks of the egg-laying period. This is also known for Bartlett pears.
• Later in the summer Conference pears are much more sensitive to codling moths in comparison to the apple variety Elstar. In Northern Italy, Abate Fetel is the more sensitive cultivar.
• The young larvae have greater success later in the summer; this is associated with a decrease in both petrification and fruit hardiness.
• The change from little-susceptible to susceptible varies from year to year and depends on the start of the codling moth flight and the development and hardiness of the pears. Early flowering is the first indication of early fruit susceptibility. Susceptibility of the pears can start at the beginning of August, but also in July already.
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In order to use the comment function, you must register with the third-party provider "Disqus".
When you activate this function, your browser establishes a direct connection with the servers of the third-party provider. We would like to point out that data is transmitted to the third-party provider after activation, and the latter may set cookies that can also be used for analysis and marketing purposes. For more information, please refer to our privacy policy.
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