We present leaf consumption, maximum body weight, head capsule width, and testicular ultrastructure of four sequential instars in codling moth reared solely on apple leaves of Honeycrisp variety. The developmental parameters for Cydia pomonella (L.) larvae fed on leaves are compared with those reared on artificial diet. Head capsules in the second, third, and fourth instars reared on leaves were significantly smaller than those in larvae fed artificial diet. Maximum body weights were significantly lower in all instars fed leaves compared with larvae fed artificial diet. More than 60% of larvae fed leaves molted to the third instar, and ≈3% entered the fifth instar, but none pupated, demonstrating an inability to fully compensate for the reduced nutritive value of a leaf-based diet. A study of testicular ultrastructure revealed that feeding codling moth larvae exclusively on apple leaves allowed formation of testes, but also triggered an intense, abnormal autophagocytosis that caused premature senescence of this tissue.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 95 • No. 5