Summer fruit tortrix moth

An elegant application of the catalytic Shapiro reaction has been found in the synthesis of the natural product 129 (equation 45), a component of the sex pheromone of the summer fruit tortrix moth (Adoxophyes orana). ... 

DEVELOPMENT OF THE SUMMER FRUIT TORTRIX. The Summer fruit tortrix moths overwinter as young larvae in a cocoon on the tree, usually under the remains of dead leaves. Before flowering the first caterpillars move from their winter hiding-places to the flower huds or rosette leaves and weh several leaves together in order to feed and grow there. They may also feed on the young fruit. The places where caterpillars have fed can later he seen on the fruit as scars of varying depth. 

Fig. 5.40. Life cycle of summer fruit tortrix moth [Capua reticulana).

Priesner, E. Receptor of Di-Unsaturated Pheromone Analogues in the Male Summer Fruit Tortrix Moth. Z. Naturforsch. 38 C, 874-877 (1983). 

The suggestion that the sex pheromone composition of the oak leaf roller was dependent to a large extent on diet was made 82,475,476) and refuted 477, 478). It is now generally accepted that the sex pheromone of this tortricid moth species is a specific blend (67 33) of E)- - and (Z)-ll-tetradecenyl acetates 477). It is also accepted that in this species this ratio is not influenced by diet 478). However, the effects of diet on the amount of pheromonal compounds have been suggested for the summer fruit tortrix moth 479), the gypsy moth 480) and the smaller tea tortrix moth 481). 

Minks, A. K. Decreased sex pheromone production in an in-bred stock of the summer-fruit tortrix moth, Adoxophyes orana. Ent. exp. Appl. 14, 361—364 (1971). 

LIFE CYCLE. These moths have different life cycles. Whereas the summer fruit tortrix [Capua reticulana) has two generations, in colder regions of Europe the apple leafroller [Pandemis heperana] and fruit tree tortrix (Archips podana) often produce only one generation. 

At the end of May the moths of the first generation start to fly. The females lay clusters of 80-100 eggs, covered with a layer of wax, on the leaves. The eggs of the summer fruit tortrix may also be laid on the underside of the leaf. 

DEVELOPMENT OE THE FRUIT TREE TORTRIX AND APPLE LEAFROLLER. In Colder regions of Europe both these moths usually produce only one generation. A second generation may be produced if conditions are good, but this does not cause as much damage as the second generation of the summer fruit tortrix. 

Both moths emerge rather later in spring than the summer fruit tortrix. Like the latter they migrate up to the blossoms and rosette leaves and start to feed there. The damage caused is similar to that caused by C. reticulana. 

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