Chitin-amended media: Improving efficacy of Cordyceps fumosorosea as a control agent of Cydia pomonella.

• Tác giả: Nushrat Harun Antara, Dietrich Stephan
• Ngôn ngữ: eng
• Thông tin xuất bản: United States : Journal of invertebrate pathology , 2025
• Bộ sưu tập: NCBI
• ID: 703544

Tóm tắt

The microbial control of insect pests such as the codling moth Cydia pomonella is a major challenge in the apple industry. This study investigates the potential of chitin-amended media to improve the efficacy of the entomopathogenic fungus Cordyceps fumosorosea strain JKI-BI-1496 for control of C. pomonella. Chitin, a key component of insect exoskeletons, colloidal chitin (CC) or chitosan were added in two concentrations to the liquid growth media. Only by the amendment of 0.5 % chitosan significant higher numbers of spores were formed whereas the highest biomass was achieved by amendment of chitin. Spores produced in chitosan had no significant effect on the mortality of C. pomonella. But media containing 1 % colloidal chitin (CC) significantly enhanced the efficacy of C. fumosorosea. To achieve 75 % mortality only 1.6 × 10