Abstract

As the risks arising from the use of chemical pesticides increase, researchers are continuously exploring alternatives that are safer for humans and the environment. Among these alternatives is the use of plant extracts; however, plant extracts have various disadvantages, including the instability of their compounds that evaporate with time, thereby reducing their effectiveness. With the development of nanotechnology and its applications, researchers are focused on testing the performance of plant-based nanocomposites for eliminating pests. Numerous issues with agricultural and insect pest control can be addressed by using nanotechnology, including increasing the physical stability, water dispersion, and bioavailability of oil emulsions and coating the desired surface area with small oil droplets. Thus, issues with essential oil application, such as volatility, low water solubility, and oxidation, can be resolved by using nanoformulations. These nanoformulations progressively release active ingredients on site, reducing the toxicity for nontarget species and demonstrating their potential as substitutes for synthetic pesticides in the management of stored-grain pests. Research on nanoemulsions from plant sources and their role in controlling stored-product coleopteran insects was reviewed with emphasis on articles from 2014 through 2023. This review compiles important data for this field of research, providing information for design of future studies.

Abstract

The fruit fly Neoceratitis asiatica (Becker) (Diptera: Tephritidae) is a monophagous pest that damages only wolfberry, Lycium barbarum L. The odorant-binding proteins (OBPs) of insects are part of the initial steps of the olfactory signal transduction cascade involved in solubilizing and transporting chemical signals to the olfactory receptors. We studied the OBP genes of N. asiatica by using data from RNA-seq cDNA libraries of adult flies. Seventeen putative OBP sequences in N. asiatica were identified, corresponding to 13 OBPs of Drosophila melanogaster (Megen) (Diptera: Drosophilidae). Thirteen of the N. asiatica genes belong to the classic subfamily, four are in the minus-C subfamily, and none were members of the plus-C and dimer subfamilies. A phylogenetic tree was constructed to elucidate the evolutionary relationship between N. asiatica and other related species. This investigation of OBP evolution in monophagous, oligophagous, and polyphagous fruit flies revealed that the OBPs in N. asiatica are more oligo and conserved. These findings lay a foundation for uncovering the relationships between monophagous insects and their OBPs.

Abstract

We conducted a case study on the severe damage caused by the transboundary migration of Locusta migratoria (L.) (Orthoptera: Acrididae) in the Tacheng Prefecture and the Altay Prefecture at the China–Kazakhstan border by examining the effects of terrain on their landing behaviors. Based on the time and location of the locusts’ mass landings, we used mesoscale weather research and forecasting models to test the sensitivity (horizontal wind, vertical wind, temperature, and rainfall) of the terrain and simulate the effects of different terrain heights (terrain leveling, half terrain height, and actual terrain height) on landing. The results showed that changes in the regional terrain of the Tacheng and Altay prefectures did not enhance the vertical airflow over the landing area. With an elevation of the terrain, the precipitation intensity in the landing area of locusts also did not increase. We did detect a direct impact of wind direction and changes in temperature in the regional terrain on the landing process of L. m. migratoria. With an increase in terrain altitude, the wind direction over the landing area changed and the temperature decreased, resulting in large-scale forced landing. The results of this study have important value in predicting and forecasting the arrival of migratory locusts.

Crop plants are pollinated by bees (72.7%), wasps (5.2%), bats (6.5%), butterflies (1.5%), moths (2.9%), flies (18.8%), beetles (5.1%), birds (4.1%), and thrips (1.3%) (Nabhan and Buchmann 1997, Services provided by pollinators, Pp. 133–150. In Daily, G.C. (ed.), Nature’s Services: Societal Dependence on Natural Ecosystems. Island Press, Washington, DC). Of the bees, honey bees were confirmed pollinators of 15.5% of crops. Although bees provide the most pollinator services, many bees are in decline due to loss of floral abundance and diversity, loss in suitable habitat, long-term exposure to pesticides, species introductions, and infection by parasites and pathogens (Potts

Chemical Mechanism of Exogenous Jasmonic Acid-Induced Resistance in Rose Against Spodoptera exigua (Lepidoptera: Noctuidae)¹

Guiyan Chen,

Jing Cheng,

Zhuo Yang,

Qiuyu Zhao,

Zhangsong Shao,

Fazhong Yang, and

Yunxian Li

Bioactivity of Plant Nanoemulsions against Stored-Product Insects (Order Coleoptera): A Review¹

Abstract

Identification and Preliminary Characterization of Odorant-Binding Proteins in Neoceratitis asiatica (Diptera: Tephritidae)¹

Abstract

Effects of Terrain on the Landing of Locusta migratoria migratoria (Orthoptera: Acrididae) at the China–Kazakhstan Border¹

Abstract

Symbiont Diversity in Imidacloprid-Resistant and Imidacloprid-Susceptible Populations of Nilaparvata lugens (Hemiptera: Delphacidae)¹

Abstract

Stability of Resistance to Permethrin and Malathion in Mexican Populations of Aedes aegypti (Diptera: Culicidae) with Recommendations for Rotational Use¹

Abstract

Trap Height Affects Capture of the Pecan Nut Casebearer (Lepidoptera: Pyralidae)¹

Abstract

A Fossil Paederinae from a Lacustrine Deposit at Orapa Diamond Mine in Botswana¹

Abstract

Residual Activity of Systemic Insecticides against Field-Collected Populations of Redheaded Flea Beetle (Coleoptera: Chrysomelidae), Systena frontalis, Adults under Laboratory and Greenhouse Conditions¹

Abstract

Ecological Insights and First Confirmed Record of Ooencyrtus nezarae (Hymenoptera: Encyrtidae) on Eggs of Megacopta cribraria (Hemiptera: Plataspidae) in Tennessee and Georgia¹

Abstract

Modified Maximum Dose Bioassay for Assessing Insecticide Response in Field Populations of Bemisia tabaci (Hemiptera: Aleyrodidae)¹

Abstract

Molecular Cloning and Expression Profiling of Minus-C Odorant Binding Proteins from Apocheima cinerarius (Lepidoptera: Geometridae)¹

Abstract

Insects Foraging on Pearl Millet, Cenchrus americanus, Pollen¹

Occurrence of Termite Species in Tea Plantations of Northeast India¹

Duponchelia fovealis (Lepidoptera: Crambidae) and its Parasitoid in Cultivated Berries in Guanajuato, Mexico¹

First Record of Melanaphis donacis (Hemiptera: Aphididae) in Georgia¹

Assessing Pollinator Seed Mix Plantings for the Presence of Undesirable Plant Species in the Livestock Pasture System¹

Chemical Mechanism of Exogenous Jasmonic Acid-Induced Resistance in Rose Against Spodoptera exigua (Lepidoptera: Noctuidae)¹

Interference with Fatty Acyl-CoA Reductase Reduces Wax Secretion and Influences the Development of Male Ericerus pela (Hemiptera: Coccoidae) Nymphs¹

Glycyrrhiza Volatiles Mediate the Host Preference of Bemisia tabaci (Hemiptera: Aleyrodidae)¹

Insect Pollinivores of Sorghum bicolor and Plant Traits that Influence Visitation¹

A Fossil Thrips (Thysanoptera: Terebrantia) from a Cretaceous Deposit in Orapa¹