oa Journal of the Entomological Society of Southern Africa - The distribution of codling moth eggs on pear trees
The importance of ovicides in the control of codling moth is generally accepted and needs no further comment. The various factors affecting the effectiveness of an ovicide have already received much attention but the type of surface where most of the eggs to be treated are deposited and to which the ovicide must be applied, especially in the case of pears, still needs further investigation. In other words, before applying an ovicide against codling m9th on pears, it is important to know (1) exactly where the eggs are usually deposited, i.e., whether they are laid on the lower or upper leaf surfaces, or on the fruit, or on the branches; (2) whether they are laid on the same types of situation throughout the season; and (3) their quantitative distribution.
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