1Biological Control Laboratory, Department of Agricultural Entomology, Post Graduate Institute, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, 444001, Maharashtra, India
*Email: srivishnumurthy.j@gmail.com (corresponding author): ORCID ID 0000-0003-3965-4119
Online published on 4 April, 2025.
A study was carried out with neem-based insecticides, viz., azadirachtin (0.03%EC, 0.15%EC, 0.3%EC, 1%EC), neem seed oil (1, 2 and 3%), neem seed extract 5% and dashparni ark (ten plant leaf extract) 4%, on Trichogrammatoidea bactrae Nagaraja (Hymenoptera: Trichogrammatidae) adults using the thin film residue method under laboratory conditions. After coating glass vials with neem-based insecticides, the adults of T. bactrae were released on the first, fifth, and tenth days of coating and the mortality was assessed. Among all neem-based insecticides, azadirachtin 1%EC was observed to be harmful to adults of T. bactrae on the first, fifth and tenth days. In contrast, neem seed extract 5% and dashparni ark 4% were found safe.
Trichogrammatoidea bactrae, Neem-based insecticides, Coating, Residue, Contact toxicity, Azadirachtin, EC, Neem seed oil, Need seed extract, Adult mortality
