Background/aim: Diallyl trisulfide (DATS) has been shown to prevent and inhibit carcinogenesis in cancer cells. We have previously shown DATS's ability to decrease the percentage of viable cells, inhibit cell migration and modulate genes involved in the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-B) and mitogen-activated protein kinase (MAPK) signaling.
Materials And Methods: This study aimed to compare the efficacy of DATS in tumor necrosis factor alpha (TNF-α) induced MDA-MB-231 and MDA-MB-468 cells and investigate its role in cell-death signaling via cell cycle, flow cytometry, and caspase assay.
The fall armyworm is a polyphagous lepidopteran pest that primarily feeds on valuable global crops like maize. Insecticides and transgenic crops have long been a primary option for fall armyworm control, despite growing concerns about transgenic crop resistance inheritance and the rate of insecticide resistance development. Global dissemination of the pest species has highlighted the need for more sustainable approaches to managing overwhelming populations both in their native range and newly introduced regions.
View Article and Find Full Text PDFThe spotted-wing Drosophila (SWD), , is native species in Southeast Asia. For over a decade, this invasive pest has been globally expanding. The economic losses to soft fruits and stoned fruits in the United States are increasing every year.
View Article and Find Full Text PDFThe fall armyworm, (J.E. Smith) (Lepidoptera: Noctuidae), is a maize pest worldwide.
View Article and Find Full Text PDFThe small hive beetle, Aethina tumida Murray (Coleoptera: Nitidulidae), is a serious threat to the honey bee industry, which relies on chemicals for the control of major honey bee pests. We developed a glass vial bioassay for resistance monitoring of adult A. tumida populations in honey bee colonies.
View Article and Find Full Text PDFHoney bees are of great economic importance, not only for honey production but also for crop pollination. However, honey bee populations continue to decline mainly due to exposure to pesticides, pathogens and beekeeping practices. In this study, total soluble protein was measured, total RNA was extracted and first-strand cDNAs were generated.
View Article and Find Full Text PDF(Diptera: Drosophilidae) is an invasive insect pest that was detected in Florida in August 2009 in Hillsborough County. Very limited information is available for berry growers to properly detect and monitor this serious pest in southern highbush blueberry (hybrids of L. × Camp), rabbiteye blueberry ( L.
View Article and Find Full Text PDFThe interaction Hübner (Lepidoptera: Noctuidae) × its natural enemies Cameron (Hymenoptera: Braconidae) and Say (Heteroptera: Pentatomidae) × botanical compounds with and without synergist is unknown; therefore, it was studied under controlled conditions. The objective of this study was to evaluate the direct mortality of nymphs and adults and indirect by this predator feeding on larvae treated after being exposed to parasitism by . L.
View Article and Find Full Text PDFThe development of insecticide resistance in Asian citrus psyllid, Diaphorina citri Kuwayama, populations is a serious threat to the citrus industry. As a contribution to a resistance management strategy, we developed a glass vial technique to monitor field populations of Asian citrus psyllid for insecticide resistance. Diagnostic concentrations needed to separate susceptible genotypes from resistant individuals were determined for cypermethrin (0.
View Article and Find Full Text PDFThe occurrence of resistance in Varroa mite populations is a serious threat to the beekeeping industry and to crops that rely on the honey bee for pollination. Integrated pest management strategies for control of this pest include the judicious use of insecticides. To monitor field populations of Varroa mite for insecticide resistance, a glass vial bioassay procedure was developed to use in the development of a resistance management strategy.
View Article and Find Full Text PDFA user-friendly method to deliver Metarhizium spores to honey bee colonies for control of Varroa mites was developed and tested. Patty blend formulations protected the fungal spores at brood nest temperatures and served as an improved delivery system of the fungus to bee hives. Field trials conducted in 2006 in Texas using freshly harvested spores indicated that patty blend formulations of 10 g of conidia per hive (applied twice) significantly reduced the numbers of mites per adult bee, mites in sealed brood cells, and residual mites at the end of the 47-day experimental period.
View Article and Find Full Text PDFStrips coated with conidia of Metarhizium anisopliae (Metschinkoff; Deuteromycetes: Hyphomycetes) to control the parasitic mite, Varroa destructor (Anderson and Trueman) in colonies of honey bees, Apis mellifera (Hymenoptera: Apidae) were compared against the miticide, tau-fluvalinate (Apistan) in field trials in Texas and Florida (USA). Apistan and the fungal treatments resulted in successful control of mite populations in both locations. At the end of the 42-day period of the experiment in Texas, the number of mites per bee was reduced by 69-fold in bee hives treated with Apistan and 25-fold in hives treated with the fungus; however mite infestations increased by 1.
View Article and Find Full Text PDFThe potential for Metarhizium anisopliae (Metschinkoff) to control the parasitic mite, Varroa destructor (Anderson and Trueman) in honey bee colonies was evaluated in field trials against the miticide, tau-fluvalinate (Apistan). Peak mortality of V. destructor occurred 3-4 d after the conidia were applied; however, the mites were still infected 42 d posttreatments.
View Article and Find Full Text PDFThe development of resistance in the Oriental fruit moth, Grapholita molesta (Busck) to organophosphorus (OP) insecticides (azinphos-methyl and phosmet) is a serious threat to the tender fruit industry in Ontario (50% crop losses in 1994). Resistance to carbamate insecticides and increased survival of field-collected moths at diagnostic concentrations of pyrethroids were widespread. As a result, four different treatment regimes were tested to manage resistance in G molesta, and the changes in resistance frequencies under each treatment regime were monitored from 1996 to 1999.
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