Prevalence of Four Nematode Species (Mermithidae) in Adult Mosquitoes (Diptera: Culicidae): First Comments Since Infection/Parasitism in Fourth-Instar Larvae.

We examined the infective capacity of the mermithid nematodes, , , , and in fourth-instar mosquito larvae nearing pupation of , , and to determine their prevalence in the adults of these mosquitoes. We exposed fourth-instar larvae to pre-parasitic nematodes (juvenile 2 stages) at a ratio of 10:1 (10 nematodes per mosquito larvae). Two days after the nematode applications, a sample of 20 pupae was taken and placed into transparent plastic cups with distilled water to observe the development and growth of pupae until they reached the adult phase with nematodes inside.

Effect of Flowering Period on Drone Reproductive Parameters ( L.).

Insufficient protein intake during the larval phase of drones affects the development of reproductive organs and spermatogenesis. The aim of the study was to evaluate the effect of the flowering-scarcity and flowering-onset periods on the eversion of the copulatory apparatus, ejaculation, and sperm quality of drones ( L.).

Assessing the Larvicidal Properties of Endemic Campeche, Mexico Plant var. (Piperaceae) against (Diptera: Culicidae) Mosquitoes.

The research aims to investigate the mortality effect of essential oil from var. , an endemic plant from Campeche, Mexico, on early second-instar larvae; it also aims to identify the volatile compounds present in the fresh leaves of the plant. To test the effectiveness of the essential oil, we followed World Health Organization Standard Procedures.

Growth of the Black Soldier Fly (Diptera: Stratiomyidae) on Organic-Waste Residues and Its Application as Supplementary Diet for Nile Tilapia (Perciformes: Cichlidae).

The black soldier fly, (BSF, Diptera: Stratiomyidae) is an insect with high protein value and a potential feed agent for animals aimed for human consumption. The growth parameters of BSF larvae reared on four substrates-restaurant-waste, fruit-waste, fish-waste, and commercial tilapia food-for 41 days before processing for inclusion into (Perciformes: Cichlidae, Nile tilapia) commercial fry diets at 30% (70:30) were determined. On fly larvae, the food substrate based on restaurant waste yielded the greatest larval weight and length.