Effect of Magnetic Field on Corcyra cephalonica Eggs for Parasitization by Trichogramma chilonis Madavi Punam N*, Meena Devendra Kumar, Wasu Radhika1, Aherkar S K Department of Entomology, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola444104, Maharashtra, India 1Mahatma Phule Krishi Vidyapeeth, Rahuri413722, Maharashtra, India *Email: punammadavi12@gmail.com (corresponding author)
Online Published on 04 January, 2024. Abstract This study evaluated the effect of permanent magnetic field on Corcyra cephalonica Stainton eggs and effect on parasitisation by the egg parasitoid Trichogramma chilonis Ishii. Corcyra eggs were exposed to magnetic field for different time periods. It was observed that three hours magnetized eggs were significantly more preferred for parasitisation and revealed maximum adult emergence (76.23%, 98.67%) than nonmagnetized Corcyra eggs (63.50%, 85.96%). When UV irradiated Corcyra eggs were kept under magnetic field for parasitisation, with increase in the time of exposure to magnetic field, parasitisation also increases along with adult emergence (89.85%, 97.16%) up to 3 hr. Then, it gradually decreases as compared with control (86.80%, 94.54%). Thus, 3 hr magnetized Corcyra eggs prevent the emergence of larva and was preferred by Trichogramma for maximum parasitisation and adult emergence. Top Keywords Trichogramma chilonis, Corcyra cephalonica, Magnetic field, Magnetization, Parasitisation, Adult emergence, Corcyra eggs card, U V treated eggs, Parasitoid. Top |