Callosobruchus maculatus (Fabricius, 1775) is considered the main pest that damages stored Vigna unguiculata (L.) Walp grains. Control of this insect is usually achieved through the use of synthetic insecticides, whose residual effects pose risks to human health and the environment. Given the important economic losses caused by the infestations of this pest and the need to...
The ecological impacts of roads are well-researched for many vertebrates, but studies are relatively lacking with regards to invertebrates. Here, changes in the abundance of ground-dwelling species of the three most common insect orders, Hymenoptera (specifically ants), Hemiptera (true bugs) and Coleoptera (beetles), with distance from a gravel road in a grassland system in South...
Assessing the species diversity, richness, and abundance of dung beetles in wildlife and wildlife-livestock systems is crucial in understanding the effects of anthropogenic processes on the community structures of dung beetles to improve conservation strategies in Namibia. We tested the hypothesis that the species diversity, richness, and abundance of dung beetles in wildlife...
The competitive displacement of one tephritid species by another tephritid is much discussed but not well understood. In south-eastern Australia, Bactrocera tryoni is speculated to have competitively displaced Ceratitis capitata by 1953. Here, I compared the host reproduction number (HRN) in 37 host fruit for B. tryoni and C. capitata to calculate a reproductive advantage (RA...
The application of machine learning has received increasing attention in the synthesis of insect sounds to preserve biodiversity. This study reviewed current literature on the application of these techniques in the automatic synthesis of insect bioacoustic and their applications in insects as food and feed, improving pest management, and as well as managing pollinators. To...
Busseola fusca (Fuller) (Noctuidae), Chilo partellus (Swinhoe) (Crambidae), Eldana saccharina (Walker) (Pyralidae), Helicoverpa armigera (Hübner) (Noctuidae), Sesamia calamistis (Hampson) (Noctuidae) and Spodoptera frugiperda (J.E. Smith) (Noctuidae) are six of the most important insect pests of sugarcane, sorghum and maize in Africa. Suitable artificial diets are needed for the...
The fall armyworm, Spodopterafrugiperda (J.E. Smith) (Lepidoptera: Noctuidae) is a highly polyphagous, migratory pest native to the tropical and subtropical region of Americas. Grass crops particularly corn have been most heavily impacted since S. frugiperda invaded Australia in 2020. In northern Western Australia, S. frugiperda is primarily a problem in dry season (May to...
Seasonally Dry Tropical Forests (SDTFs) have long suffered from chronic, intensive and extensive landscape transformations due to human activities, challenging biodiversity conservation in this biome. The Caatinga is the largest Neotropical SDTF, serving as an excellent model to understand how land use changes modulate ecological communities. In this study, we assessed the...
Cats claw creeper leaf-tying moth Hypocosmia pyrochroma (Lepidoptera: Pyralidae) enter pupal diapause in the soil from middle of autumn (April), in response to declining photoperiod. Proportion of larvae entering pupal diapause increased with decreasing Daily Solar Radiation (DSR), and all larvae completing development in winter under low DSR entered pupal diapause. Under natural...
Four species of Trichoderma genius (T. harzianum, T. citrinoviride, T. viride and T. asperellum) and Metarhizium anisopliae were assessed for their effects on larval mortality and progeny production of Trogoderma granarium Everts (Coleoptera: Dermestidae). The fungal strains were tested at 2.0 × 106, 2.0 × 107, 2.0 × 108 and 2.0 × 109 spores/kg. The larval mortality of T...
To evaluate the influence of ecological migration village construction on mosquito vector populations and mosquito-borne diseases in southern Yunnan Province. Two vicinal villages in Mengla County, the southern part of Yunnan Province, a native village, and a newly built village, were selected as study sites. Malaria and Japanese Encephalitis vector mosquito population divergence...
The Egyptian cotton leafworm Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) is a pervasive and highly polyphagous insect pest. As S. littoralis has developed resistance to major classes of conventional insecticides and the use of these insecticides has caused negative impacts on the ecosystems, it is necessary to search for eco-friendly, cost-effective, and...
The bioefficacy of several inert materials, such as Diatomaceous earth (DE), bentonite, and biochar enhanced with pirimiphos-methyl against Sitophilus oryzae, was used to evaluate the insecticidal activity of three new formulations using the technique of mixing with grain. DE was the most effective material (LC50 3.198 g/kg), followed by biochar LC50 3.709 g/kg, whereas bentonite...
Insufficient storage practices and frequent infestations of insect pests pose significant obstacles to sesame production and storage, adversely affecting the quality and quantity of seeds. This forces farmers and traders to sell their crops at lower prices immediately after threshing to avoid market rejection caused by pests and mold damage during storage. The objective of this...
For effective pest control, nano-insecticides have recently been proposed as a promising alternative to traditional ones. Thus, this study aimed to compare the efficacy of the traditional and nano-forms of thiocyclam (a natural toxin-based insecticide) and chlorantraniliprole (a diamide insecticide) against two major insect pests, the cotton leafworm, Spodoptera littoralis (Boisd...