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https://www.readbyqxmd.com/read/28634803/a-method-for-reducing-environmental-pollution-by-using-essential-oils-in-rodent-pest-management-program
#1
Goran Jokić, Tanja Blažić, Rada Đurović-Pejčev, Tijana Đorđević, Suzana Đedović, Marina Vukša
Strong-smelling plant extracts, such as essential oils, have a variety of feeding effects on mammals. Considering current concerns over long-term health issues and environmental effects of chemicals, plant-based products with repellent or antifungal activities may represent good solutions for improvement of rodent pest control programs. The present study was therefore focused on examining the effects of bergamot, lavender, and thyme essential oils as additional bait components on daily intakes of cereal-based baits by wild house mice...
June 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28633599/mechanism-of-deltamethrin-induced-thymic-and-splenic-toxicity-in-mice-and-its-protection-by-piperine-and-curcumin-in-vivo-study
#2
Anoop Kumar, Dinakar Sasmal, Neelima Sharma
Deltamethrin (DLM) is a well-known pyrethroid insecticide which is widely used in the agriculture and home pest control due to restriction on the sale of organophosphate. DLM induced apoptosis is well known but its mechanism is still unclear. This study has been designed to find out its mechanism of apoptosis with the help of computational methods along with in vivo methods. The QikProp and ProTox results have shown that DLM has good oral absorption. The docking results reveal that DLM has a strong binding affinity toward the CD4, CD8, CD28 and CD45 receptors...
February 28, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/28632160/the-protease-inhibitor-ci2c-gene-induced-by-bird-cherry-oat-aphid-in-barley-inhibits-green-peach-aphid-fecundity-in-transgenic-arabidopsis
#3
Aleksandra Losvik, Lisa Beste, Sara Mehrabi, Lisbeth Jonsson
Aphids are phloem feeders that cause large damage globally as pest insects. They induce a variety of responses in the host plant, but not much is known about which responses are promoting or inhibiting aphid performance. Here, we investigated whether one of the responses induced in barley by the cereal aphid, bird cherry-oat aphid (Rhopalosiphum padi L.) affects aphid performance in the model plant Arabidopsis thaliana L. A barley cDNA encoding the protease inhibitor CI2c was expressed in A. thaliana and aphid performance was studied using the generalist green peach aphid (Myzus persicae Sulzer)...
June 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28631341/evaluation-of-flubendiamide-induced-mitochondrial-dysfunction-and-metabolic-changes-in-helicoverpa-armigera-hubner
#4
Bharat Nareshkumar, Shaik Mohammad Akbar, Hari Chand Sharma, Senigala K Jayalakshmi, Kuruba Sreeramulu
Phthalic acid diamide insecticides are the most effective insecticides used against most of the lepidopteran pests including Helicoverpa armigera, a polyphagous pest posing threat to several crops worldwide. The present studies were undertaken to understand different target sites and their interaction with insect ryanodine receptors (RyR). Bioassays indicated that flubendiamide inhibited the larval growth in dose-dependent manner with LD50 value of 0.72 μM, and at 0.8 μM larval growth decreased by about 88%...
June 20, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28629883/laboratory-evaluation-of-the-effect-of-beauveria-bassiana-on-the-predatory-mite-phytoseiulus-persimilis-acari-phytoseiidae
#5
Mohammad Shaef Ullah, Un Taek Lim
Tetranychus urticae Koch (Acari: Tetranychidae), a major pest of many agricultural crops, is mainly controlled with chemical acaricides. However, predatory mites and entomopathogens have been proposed as alternative control agents. In this study, the effect of the BotaniGard(®) GHA strain of Beauveria bassiana on the survival, longevity, fecundity, and egg hatch rate of the predatory mite Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae) were studied under laboratory conditions. When B. bassiana was applied directly to P...
June 16, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28625474/identifying-circumstances-under-which-high-insecticide-dose-increases-or-decreases-resistance-selection
#6
J C Helps, N D Paveley, F van den Bosch
Insect management strategies for agricultural crop pests must reduce selection for insecticide resistant mutants while providing effective control of the insect pest. One management strategy that has long been advocated is the application of insecticides at the maximum permitted dose. This has been found, under some circumstances, to be able to prevent the resistance allele frequency from increasing. However this approach may, under different circumstances, lead to rapid selection for resistance to the insecticide...
June 15, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28625191/attraction-and-consumption-of-methyl-eugenol-by-male-bactrocera-umbrosa-fabricius-diptera-tephritidae-promotes-conspecific-sexual-communication-and-mating-performance
#7
S L Wee, M Z Abdul Munir, A K W Hee
The Artocarpus fruit fly, Bactrocera umbrosa (Fabricius) (Diptera: Tephritidae), is an oligophagous fruit pest infesting Moraceae fruits, including jackfruit (Artocarpus heterophyllus Lamarck), a fruit commodity of high value in Malaysia. The scarcity of fundamental biological, physiological and ecological information on this pest, particularly in relation to behavioural response to phytochemical lures, which are instrumental to the success of many area-wide fruit fly control and management programmes, underpins the need for studies on this much-underrated pest...
June 19, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28624937/acute-toxicity-of-chemical-pesticides-and-plant-derived-essential-oil-on-the-behavior-and-development-of-earthworms-eudrilus-eugeniae-kinberg-and-eisenia-fetida-savigny
#8
Prabhakaran Vasantha-Srinivasan, Sengottayan Senthil-Nathan, Athirstam Ponsankar, Annamalai Thanigaivel, Muthiah Chellappandian, Edward-Sam Edwin, Selvaraj Selin-Rani, Kandaswamy Kalaivani, Wayne B Hunter, Veeramuthu Duraipandiyan, Naif Abdullah Al-Dhabi
Comparative toxicity of two chemical pesticides (temephos and monocrotophos) versus a plant-derived betel leaf oil Piper betle (L.) to earthworm Eudrilus eugeniae (Kinberg) and redworm Eisenia fetida Savigny, historically: Eisenia foetida (Savigny 1826), was evaluated. Mortality rate was more prominent in temephos at 100 μg concentration to both the earthworms in filter paper test (FPT) as well as 10 mg concentration in artificial soil test (AST). In contrast, P. betle does not display much mortality rate to both the earthworms even at 1000 mg of treatment concentrations...
June 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28623811/residential-exposure-to-pesticides-as-risk-factor-for-childhood-and-young-adult-brain-tumors-a-systematic-review-and-meta-analysis
#9
REVIEW
Geneviève Van Maele-Fabry, Laurence Gamet-Payrastre, Dominique Lison
BACKGROUND: Accumulating evidence suggests a positive association between exposure to non-agricultural pesticides and childhood brain tumors (CBT). OBJECTIVE: (1) To conduct a systematic review and meta-analysis of published studies on the association between residential/household/domestic exposure to pesticides and childhood brain tumors. (2) To clarify variables that could impact the results. METHODS: Publications in English were identified from a MEDLINE search through 28 February 2017 and from the reference list of identified publications...
June 14, 2017: Environment International
https://www.readbyqxmd.com/read/28623148/male-sexual-enhancement-after-methoprene-treatment-in-anastrepha-fraterculus-diptera-tephritidae-a-sustained-response-that-does-not-fade-away-after-sexual-maturation
#10
G E Bachmann, F Devescovi, A L Nussenbaum, J L Cladera, P C Fernández, M T Vera, P E A Teal, D F Segura
The juvenile hormone (JH) of insects triggers physiological changes related to reproduction in adults of both sexes. Methoprene is a sesquiterpene with some effects that are analogous to those of JH. Treatments with methoprene accelerate sexual maturation in males of the South American fruit fly Anastrepha fraterculus, giving young males a mating advantage over non-treated males of the same age. Here, we evaluated the effects of methoprene treatment on A. fraterculus males after the sexual maturation phase and tested whether this compound provides a long-term mating advantage...
June 13, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28620268/towards-the-genetic-control-of-invasive-species
#11
Tim Harvey-Samuel, Thomas Ant, Luke Alphey
Invasive species remain one of the greatest threats to global biodiversity. Their control would be enhanced through the development of more effective and sustainable pest management strategies. Recently, a novel form of genetic pest management (GPM) has been developed in which the mating behaviour of insect pests is exploited to introduce genetically engineered DNA sequences into wild conspecific populations. These 'transgenes' work in one or more ways to reduce the damage caused by a particular pest, for example reducing its density, or its ability to vector disease...
2017: Biological Invasions
https://www.readbyqxmd.com/read/28620217/secretory-laccase-1-in-bemisia-tabaci-med-is-involved-in-whitefly-plant-interaction
#12
Chun-Hong Yang, Jian-Yang Guo, Dong Chu, Tian-Bo Ding, Ke-Ke Wei, Deng-Fa Cheng, Fang-Hao Wan
The whitefly Bemisia tabaci is a phloem-feeding pest that lives predominantly on herbaceous species and causes serious damage to hosts. Whitefly saliva is thought to contain proteins that modulate plant defences and facilitate feeding. A predicted secreted protein, laccase 1 (LAC1), was found in the salivary gland transcriptome of B. tabaci and might be existed in the watery saliva of B. tabaci. As LAC1 has a potential role in detoxification of secondary plant compounds in insects, we speculated that it may participate in the insect's response to plant defences...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28620187/discovery-and-identification-of-o-o-diethyl-o-4-5-phenyl-4-5-dihydroisoxazol-3-yl-phenyl-phosphorothioate-xp-1408-as-a-novel-mode-of-action-of-organophosphorus-insecticides
#13
Zhigang Zeng, Ying Yan, Bingfeng Wang, Niu Liu, Hanhong Xu
Organophosphorus (OP) insecticides play an important role in pest control. Many OP insecticides have been removed from the market because of their high toxicity to humans. We designed and synthesized a new OP insecticide with the goal of providing a low cost, and less toxic insecticide. The mode of action of O, O-diethyl O-(4-(5-phenyl-4, 5-dihydroisoxazol-3-yl) phenyl) phosphorothioate (XP-1408) was studied in Drosophila melanogaster. Bioassays showed that XP-1408 at a concentration of 50 mg/L delayed larval development...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28619649/the-school-inner-city-asthma-intervention-study-design-rationale-methods-and-lessons-learned
#14
Wanda Phipatanakul, Petros Koutrakis, Brent A Coull, Choong-Min Kang, Jack M Wolfson, Stephen T Ferguson, Carter R Petty, Mihail Samnaliev, Amparito Cunningham, William J Sheehan, Jonathan M Gaffin, Sachin N Baxi, Peggy S Lai, Perdita Permaul, Liming Liang, Peter S Thorne, Gary Adamkiewicz, Kasey J Brennan, Andrea A Baccarelli, Diane R Gold
Asthma is the most common chronic disease of childhood in the United States, causes significant morbidity, particularly in the inner-city, and accounts for billions of dollars in health care utilization. Home environments are established sources of exposure that exacerbate symptoms and home-based interventions are effective. However, elementary school children spend 7 to 12h a day in school, primarily in one classroom. From the observational School Inner-City Asthma Study we learned that student classroom-specific exposures are associated with worsening asthma symptoms and decline in lung function...
June 12, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28618159/are-herbicides-a-once-in-a-century-method-of-weed-control
#15
REVIEW
Adam S Davis, George Frisvold
The efficacy of any pesticide is an exhaustible resource that can be depleted over time. For decades, the dominant paradigm - that weed mobility is low relative to insect pests and pathogens, that there is an ample stream of new weed control technologies in the commercial pipeline, and that technology suppliers have sufficient economic incentives and market power to delay resistance - supported a laissez faire approach to herbicide resistance management. Earlier market data bolstered the belief that private incentives and voluntary actions were sufficient to manage resistance...
June 15, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28615623/proboscis-infection-route-of-beauveria-bassiana-triggers-early-death-of-anopheles-mosquito
#16
Minehiro Ishii, Hirotaka Kanuka, Athanase Badolo, N'Falé Sagnon, Wamdaogo M Guelbeogo, Masanori Koike, Daigo Aiuchi
Entomopathogenic fungi are known to control vector mosquito populations. Thus, understanding the infection dynamics of entomopathogenic fungi is crucial for the effective control of insect pests such as mosquitoes. We investigated the dynamics of Beauveria bassiana s.l. 60-2 infection of Anopheles stephensi by exposing the mosquito to fungus-impregnated filter paper through two infection routes and then comparing the mortality and extent of infection. Fungal development was observed after using this inoculation method with both the tarsus route and the proboscis route, but early mosquito death occurred only after infection through the proboscis route...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28615084/community-wide-stable-isotope-analysis-reveals-two-distinct-trophic-groups-in-a-service-providing-carabid-community
#17
S Kamenova, C Leroux, S E Polin, M Plantegenest
Disentangling trophic interactions among species is important for elucidating mechanisms underlying ecosystem functioning and services. Carabid beetles are an important guild of predators that may regulate pest populations in arable landscapes, but their generalist feeding behavior hinders predictions about their actual contribution to pest control. In order to assess carabids' potential for pest control, we simultaneously analyzed the carbon and nitrogen stable isotope ratios of a community of 45 co-occurring species in wheat and oilseed rape fields...
June 15, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28615053/loci-and-candidate-genes-conferring-resistance-to-soybean-cyst-nematode-hg-type-2-5-7
#18
Xue Zhao, Weili Teng, Yinghui Li, Dongyuan Liu, Guanglu Cao, Dongmei Li, Lijuan Qiu, Hongkun Zheng, Yingpeng Han, Wenbin Li
BACKGROUND: Soybean (Glycine max L. Merr.) cyst nematode (SCN, Heterodera glycines I,) is a major pest of soybean worldwide. The most effective strategy to control this pest involves the use of resistant cultivars. The aim of the present study was to investigate the genome-wide genetic architecture of resistance to SCN HG Type 2.5.7 (race 1) in landrace and elite cultivated soybeans. RESULTS: A total of 200 diverse soybean accessions were screened for resistance to SCN HG Type 2...
June 14, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28610908/the-abc-transporter-abch-9c-is-needed-for-cuticle-barrier-construction-in-locusta-migratoria
#19
Zhitao Yu, Yiwen Wang, Xiaoming Zhao, Xiaojian Liu, Enbo Ma, Bernard Moussian, Jianzhen Zhang
ATP-binding cassette (ABC) transporters constitute a large superfamily of proteins that mediate transport of a diverse number of substrates including nutrients, lipids and xenobiotics across membranes serving a variety of developmental and physiological functions. Here, we report on the molecular properties and biological roles of the ABC transporter LmABCH-9C in the migratory locust Locusta migratoria. LmABCH-9C was expressed continuously during nymphal development in all tissues including the integument. Expression was highest just after molting...
June 10, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28610286/a-survey-for-potential-biological-control-agents-of-i-pereskia-i-i-aculeata-i-miller-cactaceae-in-brazil-reveals-two-new-species-of-i-horismenus-i-walker-hymenoptera-eulophidae
#20
Tiago G Pikart, Valmir A Costa, Christer Hansson, Sandra C DE Cristo, Marcelo D Vitorino
This paper deals with the description of two new species of Horismenus Walker (Hymenoptera: Eulophidae) from Brazil, parasitoids of larvae of Adetus analis (Haldeman) (Coleoptera: Cerambycidae). Both species are similar to Horismenus steirastomae (Girault), a species that also parasitizes cerambycids. Adetus analis is a pest of Sechium edule (Jacq.) Swartz (Cucurbitaceae), a minor crop in Brazil, Argentina and U.S.A., but also feeds in stems of Pereskia aculeata Miller (Cactaceae), an ornamental plant that has become a problematic weed species in Africa, where it was introduced...
May 30, 2017: Zootaxa
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