Toxicity of Zingiber officinale Nanoparticles Against the Spiny Bollworm, Earias insulana, and Their Effects on Some Biological and Histological Aspects
R.M. El-Shennawy
Plant Protection Research Institute, Agriculture Research Centre, Dokki, Giza, Egypt. Email of corresponding author: raniashennawy2017@yahoo.com
Received: 4/4/2023; Accepted: 19/7/2023
https://doi.org/10.22268/AJPP-001237
Abstract
The toxicity of Ginger extract nano-sized particles (Ginger AgNPs) against the spiny bollworm (Earias insulana) larvae, and its adverse effects on some biological and histological aspects were studied under controlled conditions of 26±1°C and 75±5 RH. LC50 treatment of newly hatched larvae produced percentages of larval and pupal mortality rates of 60.0 and 47.06%, respectively, compared to the control treatment (6.33 and 2.0%). Treatment resulted in significant larval and pupal deformity rates (11 and 13.51%, respectively) compared to the control (1 and 3%). Ginger AgNPs greatly reduced the adult emergence rate (52.94 %) with a high rate of malformation (11.11%) compared to 89.0 and 0.0 % for the control, respectively. Treatment sharply affected females’ fecundity (69.67%) with an acute decrease in oviposition periods and hatchability rate (66.67%) in comparison to the untreated control. The LC50 of Ginger AgNPs resulted in different histological alternations in the cuticle and midgut compared to the normal structure of the control.
Keywords
Ginger, nanoparticles, spiny bollworm, biological changes, histological changes.