Biocontrol toxicity of Trichoderma harzianum (Hypocreales: Hypocreaceae) derived chemical molecules against malarial mosquito Anopheles stephensi with molecular docking studies.

In this study, the crude chemical constituents extracted from Trichoderma harzianum and their toxicity were evaluated against the larvae, pupae, and adults of Anopheles stephensi at 24 and 48 h post-treatment. Additionally, the chemical constituents of the crude extracts were identified using gas chromatography-mass spectrometry (GC-MS) analysis, and their ability to bind with target proteins was confirmed through molecular docking studies. The results clearly demonstrated that the chemical compounds from T.

Bottom-Up Effects of Various Plant Growth Promoting Treatments on Fitness Parameters of Hippodamia variegata.

Plant growth-promoting activities using biological, chemical, and organic fertilizers are well-documented for pest insects, their impacts on predators are less commonly studied. This research investigates whether bell pepper plants treated with plant growth-promoting rhizobacteria (PGPRs), arbuscular mycorrhizal fungi (AMF), vermicompost (30%), and zinc sulfate either separately or in selected combinations affect the nutrient indices and population growth traits of the ladybug predator, Hippodamia variegata (Goeze), when fed on aphids, Myzus persicae (Sulzer). Bell pepper plants were individually treated with two PGPRs (Bacillus subtilis and Pseudomonas fluorescens), one AMF (Glomus intraradices), soil amended with 30% vermicompost (v/v), and foliar application of zinc sulfate under greenhouse conditions.

Effects of copper nanoparticles synthesized from the entomopathogen Metarhizium robertsii against the dengue vector Aedes albopictus (Skuse, 1894).

Aedes albopictus, known as the Asian tiger mosquito, is a significant vector for dengue fever, chikungunya, zika virus, yellow fever. Current control methods rely on chemical insecticides, which face challenges such as resistance, environmental harm, and impact on non-target species Eudrilus eugeniae and Artemia salina. This study evaluates the toxic effects of biogenic copper nanoparticles (CuNPs) synthesized using Metarhizium robertsii intracellular extract obtained from our previous research.