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... The study aimed at comparing the changes in the content of free amino acids, phenolic compounds and the activity of PAL and TAL caused by two piercing-sucking arthropods: the grape mealybug (Pseudococcus maritimus Ehrh.) and the two-spotted spider mite (Tetranychus urticae Koch) in the leaves of orchid and strawberry, respectively. The obtained results show that the amino acid content and the rati ...
... Intracellular trehalose accumulation is relevant to fungal life and pathogenicity. Trehalose-6-phosphate synthase (TPS) is known to control the first step of trehalose synthesis, but functions of multiple TPS genes in some filamentous fungi are variable. Here, we examined the functions of two TPS genes (tpsA and tpsB) in Beauveria bassiana, a fungal insect pathogen widely applied in arthropod pest ...
... The coatomer subunit alpha (COPA) and aquaporin 9 (AQ9) genes from the two-spotted spider mite, Tetranychus urticae, were previously determined to exhibit RNA interference (RNAi)-based lethality when their double-stranded RNAs were systemically delivered via multi-unit chambers (Kwon et al., 2016 [8]). In current study, the hairpin RNAs of the COPA and AQ9 were transiently expressed in soybean pla ...
... ObjectivesTyrophagus putrescentiae (Schrank; Sarcoptiformes: Acaridae), the most common arthropod pest of dry-cured ham, is controlled in the U.S. dry cured ham industry with methyl bromide (MB) fumigation. However, MB fumigation will be phased out of use since it is an ozone depleting substance. The objective of this research was to evaluate ham nets that were infused with food-grade ingredients ...
arthropod pests; biological control; climate change; composts; crop residues; cropping systems; insects; irrigation; pest management; plant pests; predators; rice; species diversity; sustainable agriculture; tillage; water management
Abstract:
... Sustainable agricultural practices that are promoted for mitigating climate change have the potential to also improve pest management. The author highlights recent studies that demonstrate effects of climate-mitigating agricultural practices on arthropod pests and predators in agronomic cropping systems. Promising practices for suppressing pests and/or improving biological control include: plant s ...
Saccharomyces cerevisiae; arthropod pests; biomass; calcium alginate; carbon dioxide; chemical reactions; corn starch; encapsulation; glucose; greenhouse gas emissions; image analysis; matrix-assisted laser desorption-ionization mass spectrometry; pest control; scanning electron microscopy; soil; starch granules; temperature
Abstract:
... CO₂ is known as a major attractant for many arthropod pests which can be exploited for pest control within novel attract-and-kill strategies. This study reports on the development of a slow-release system for CO₂ based on calcium alginate beads containing granular corn starch, amyloglucosidase and Saccharomyces cerevisiae. Our aim was to evaluate the conditions which influence the CO₂ release and ...
... Investigations were undertaken to clarify the biology of green lacewing Mallada boninensis on its hosts Helopeltis theivora and Oligonychus coffeae, which are two major arthropod pests of tea crop and on an artificial diet. No significant variations were recorded in terms of preoviposition period, oviposition period, oviposition rate, total eggs, hatching success, larval survival and adult emergen ...
... Organic grain growers rely on cultural practices and biological control to regulate pests, and the implementation and timing of cultural practices can affect many characteristics of the cropping system as a habitat for natural enemies of arthropod pests. Ground beetles (Coleoptera: Carabidae) in particular are important insect and weed-seed predators, and are sensitive to crop rotations, tillage a ...
... Sugarcane is an important industrial crop in Iran, and this crop is vulnerable to attack by several arthropod pest species. Sugarcane whitefly Neomaskellia andropogonis (Corbett) (Homoptera: Aleyrodidae) is a relatively new emerging pest which affect sugarcane fields in late summer. Field trials were carried out during early September until late November 2015 at Salman Farsi Agro-Industry, Ahwaz, ...
... Alternatives to pesticides are necessary for the management of hop (Humulus lupulus L.) arthropod pests. The three major arthropod pests in northeastern US hop production include two-spotted spider mite, Tetranychus urticae Koch, hop aphid Phorodon humuli (Schrank), and potato leafhopper, Empoasca fabae Harris. This 3-yr study (2012–2014) in Vermont investigated the effect of flowering ground cove ...
... Strawberries are one of the most popular fruits in Germany. However, an expansion of the cultivation area, especially for organic strawberry production, is limited due to the high yield losses caused by diseases and arthropod pests. Therefore, the two soil strengthener RhizoVital® 42 fl. and Trichostar® were evaluated for their efficacy in stabilizing strawberry yields in the presence of soil-born ...
... The thermotolerance of oil-based conidial formulations of Metarhizium anisopliae s.l. (IP 46) and Metarhizium robertsii (ARSEF 2575) were investigated. Conidia of IP 46 or ARSEF 2575 were suspended in different adjuvants and exposed to 45 ± 0.2°C for 4, 6, 8 or 24 h; their viability was then assessed after 48 h incubation at 27 ± 1°C. Conidia heated in pure mineral or vegetable oil exhibited mean ...
... Biological control is an important ecosystem service delivered by natural enemies. Together with breeding for plant defence, it constitutes one of the most promising alternatives to pesticides for controlling herbivores in sustainable crop production. Especially induced plant defences may be promising targets in plant breeding for resistance against arthropod pests. Because they are activated upon ...
Marcela Carvalho Andrade; Alex Antônio da Silva; Irã Pinheiro Neiva; Izabela Regina C. Oliveira; Evaristo Mauro De Castro; David Merrill Francis; Wilson Roberto Maluf
... Tomato is affected by a large number of arthropod pests, among which the whitefly (Bemisia tabaci) is considered to be one of the most destructive. Several accessions of the wild species of Solanum galapagense, including accession LA1401, are considered resistant to whitefly (B. tabaci). This resistance has been associated with the presence of type IV glandular trichomes on the leaf surface. Our r ...
Antonio Biondi; Xingeng Wang; Jeffrey C. Miller; Betsey Miller; Peter W. Shearer; Lucia Zappalà; Gaetano Siscaro; Vaughn W. Walton; Kim A. Hoelmer; Kent M. Daane
... Insect parasitoids are often manipulated to improve biological control programs for various arthropod pests. Volatile compounds can be a relevant cue used by most parasitoid hymenoptera for host or host microhabitat location. Here, we studied olfactory responses of the braconid Asobara japonica Belokobylskij, an Asiatic endoparasitoid of the invasive pest Drosophila suzukii (Matsumura), toward its ...
... Insecticide resistance is a broadly recognized ecological backlash resulting from insecticide use and is widely reported among arthropod pest species with well‐recognized underlying mechanisms and consequences. Nonetheless, insecticide resistance is the subject of evolving conceptual views that introduces a different concept useful if recognized in its own right – the risk or likelihood of control ...
... Krs is a class II lysyl-tRNA synthetase (KRS) that is involved in cytosolic protein synthesis in budding yeast but functionally has not been explored in filamentous fungi. Previous transcriptomic analysis has revealed that a Krs-coding gene is likely involved in pathogenesis of Beauveria bassiana, a classic insect pathogen as a global source of fungal insecticides. Here, we show that Krs is locali ...
... Pyrethroid insecticides have been used extensively in controlling arthropod pests and disease vectors. They act on voltage-gated sodium channels, which are essential for the initiation and propagation of the action potential in neurons and other excitable cells. A serious obstacle to effective use of these compounds is the emergence of resistance. One major mechanism of DDT and pyrethroid resistan ...
... Abamectin is one of the most widely used avermectins for agricultural pests control, but the emergence of resistance around the world is proving a major threat to its sustained application. Abamectin acts by directly activating glutamate-gated chloride channels (GluCls) and modulating other Cys-loop ion channels. To date, three mutations occurring in the transmembrane domain of arthropod GluCls ar ...
... Ticks serve as vectors of a wide range of infectious agents deleterious to humans and animals. Tick bite prevention is based to a large extent on the use of chemical repellents and acaricides. However, development of resistance in targeted ticks, environmental pollution, and contamination of livestock meat and milk are major concerns. Recently, metal, metal oxide and carbon nanoparticles, particul ...