Insect growth regulators and chinaberry (Melia azedarach) fruit acetone extract disrupt intermediary metabolism and alter immunocyte profile in Agrotis ipsilon larvae

Corruption of the Hemocyte Profile and Immunosuppression in Agrotis ipsilon (Lepidoptera: Noctuidae) Larvae by Two Entomopathogenic Nematodes and their Symbiotic Bacteria

“…In the present study, the freely circulating hemocytes in the haemolymph of 5 th instar larvae of A. ipsilon had been identified into five main types, viz., PRs, GRs, PLs, SPs and OEs. The present finding was in agreement with some reported results of similar hemocyte types in the larvae of A. ipsilon (Awad, 2012;El-Khayat et al, 2020;Shaurub et al, 2022). On the other hand, Abd El-Aziz and Awad (2010) identified five types of hemocytes in haemolymph of A. ipsilon larvae but adipohemocytes (ADs) instead of OEs.…”

Greasy cutworm (<i>Agrotis ipsilon</i>) and its biorational management strategies: A review

“…Flufenoxuron at LC50 (3.04 ppm) lowered the hemolymph total protein content whereas pyriproxyfen at LC50 (168.70 ppm) lowered the total protein, lipid, and carbohydrate, and a decrease in total hemocyte count was recorded. Transaminase activity and phagocytic plasmatocyte numbers were reduced in both the tested compounds (Shaurub, El-Sheikh and Shukshuk, 2022).…”

“…As a result of the toxic oil, the consumption of food decreased, thereby causing a significant decrease in the Relative Consumption Rate (RCR), Growth Rate (RGR), and the Efficiency of Food Conversion (ECI)/Digested (ECD), as well as an increase in Metabolic Cost (MC), and antifeeding activities (Nasr, Teleb and Abou-Saty, 2021). The acetone extract of Melia azedarach at LC50 (46.80 × 10 3 ppm) inhibits A. ipsilon larval development by lowering total lipid, protein, carbohydrate trehalase, invertase, and transaminase activity (Shaurub, El-Sheikh and Shukshuk, 2022).…”

Is the biotic potential, expressed as life-history features and nutritional indices, of generalized herbivore insects a function of host plants? — Spodoptera littoralis as a case study

“…A stock colony of S. littoralis was reared in the laboratories of the of the Research Division of the Cotton Leafworm, Plant Protection Research Institute, Agricultural Research Center, Ministry of Agriculture, Dokki, Giza, Egypt at 27 ± 2°C, 65 ± 5% relative humidity and a 16-h light: 8-h dark photoperiod according to Shaurub et al (2023). Larvae were fed on fresh leaves of castor bean Ricinus communis, while adults were fed on a 10% sucrose solution.…”

“…Newly emerged moths were divided into four pairs, each pair (one male and one female) was housed in a glass jar (10 cm in diameter, 21 cm in height), covered with a piece of muslin cloth, and fed on a 10% fresh sucrose solution. A small branch of oleander Nerium oleander was placed in the jar to provide a suitable site for oviposition (Shaurub et al 2023). Fecundity (total number of eggs/ female), fertility (egg-hatch percentage), and longevity of adults of both sexes were determined.…”