scholarly journals Natural and Synthetic Repellents for Pest Management of the Storage Mite Tyrophagus putrescentiae (Schrank) (Sarcoptiformes: Acaridae)

Insects ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 711
Author(s):  
Naomi Manu ◽  
Mark Wesley Schilling ◽  
Thomas Wesley Phillips
Keyword(s):  
Population Growth ◽  
Pest Management ◽  
Plant Secondary Metabolites ◽  
Petri Dish ◽  
Short Chain Fatty Acids ◽  
Tyrophagus Putrescentiae ◽  
Plant Essential Oils ◽  
Ozone Depleting Substance ◽  
Solvent Control ◽  
Storage Mite

The fumigant pesticide methyl bromide (MB) was used for stored products, but it is now banned for most uses in many countries as an ozone-depleting substance. MB was the only pesticide used to manage the ham mite, Tyrophagus putrescentiae, which is the most significant pest of dry cured hams. Effective alternatives to MB are needed to develop integrated pest management (IPM) programs for this pest. This study evaluated plant essential oils and food-safe compounds as repellents to directly protect hams from infestation. Experiments to assess the repellency to orientation, oviposition, and population growth of mites on pieces of aged country hams were conducted. Test compounds at different concentrations were dissolved in respective solvents and compared to the solvent control. Results showed that C8910, a mixture of three short-chain fatty acids, and the sesquiterpene ketone nootkatone had repellency indices of (RI) of 85.6% and 82.3%, respectively, at a concentration of 0.1 mg/cm2, when applied to a Petri dish arena. DEET and icaridin were also tested but performed poorly with RIs below 70% even at 0.1 mg/cm2.The monoterpene alcohol geraniol had the highest RI of 96.3% at 0.04 mg/cm2. Ham pieces dipped in C8910 and nootkatone at 150 ppm each had RIs of 89.3% and 82.8%, respectively. In general, as the concentrations of test compounds increased, the numbers of eggs that were laid on these treated ham cubes decreased after the 48 h exposure time. Ham pieces dipped in different concentrations of test compounds and then inoculated with 20 adult mites showed a significant decrease in mite population growth compared to control pieces after 14 days. The results of these experiments suggest that some plant secondary metabolites and synthetic food-safe compounds could serve as potential alternatives for managing mites on hams.

Biology and integrated pest management of Tyrophagus putrescentiae (Schrank) infesting dry cured hams

2018 ◽  
Vol 79 ◽  
pp. 16-28
Author(s):  
Xue Zhang ◽  
Jasmine D. Hendrix ◽  
Yan L. Campbell ◽  
Thomas W. Phillips ◽  
Jerome Goddard ◽  
...  
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Tyrophagus Putrescentiae

Population growth of the stored product pest Tyrophagus putrescentiae (Acari: Acaridae) on environmentally and medically important fungi

2019 ◽  
Vol 78 (1) ◽  
pp. 49-64
Author(s):  
Guilherme Liberato da Silva ◽  
Isadora Zanatta Esswein ◽  
Daiane Heidrich ◽  
Fabíola Dresch ◽  
Mônica Jachetti Maciel ◽  
...  
Keyword(s):  
Population Growth ◽  
Tyrophagus Putrescentiae ◽  
Stored Product Pest

scholarly journals The toxicity of bean flour (Phaseolus vulgaris) to stored-product mites (Acari: Acaridida)

2010 ◽  
Vol 42 (No. 4) ◽  
pp. 125-129 ◽  
Author(s):  
J. Hubert ◽  
M. Němcová ◽  
G. Aspaly ◽  
V. Stejskal
Keyword(s):  
Phaseolus Vulgaris ◽  
Population Growth ◽  
Initial Level ◽  
Integrated Control ◽  
Tyrophagus Putrescentiae ◽  
Storage Mites ◽  
Acarus Siro ◽  
Stored Product Mites ◽  
Stored Product Pests ◽  
Bean Flour

Legume proteins were shown to have insecticidal activity against stored-product pests. Grain enriched by bean (<I>Phaseolus vulgaris</I>) flour inhibits the growth of stored-product mites. In this study, we tested the toxicity of bean flour to storage mites under optimal conditions for their population growth (i.e. rearing diet, temperature: 25C and humidity optimum: 85% RH). Bean flour was added&nbsp; to the diet in one of eight concentrations: 0, 0.01, 0.1, 0.5, 1, 2.5, 5, 10%). The population growth of <I>Tyrophagus putrescentiae, Acarus siro </I>and <I>Aleuroglyphus ovatus </I>initiating from a density of 50 mites per 0.2 g of diet was recorded for 21 days. The enrichment of grain with bean flour suppressed the population growth of the tested species. These differed in their sensitivity to bean flour. Population growth was decreased to 50% in comparison to the control (rC<SUB>50</SUB>) by the bean flour concentration of 0.02% in <I>T. putrescentiae, </I>0.04% in<I>&nbsp; A. siro, </I>and by<I> </I>4.87% in <I>A. ovatus. </I>&nbsp;The concentration of 5% bean flour in diets kept populations of <I>A. siro </I>and <I>T. putrescentiae</I><I> </I>at the initial level. The results are discussed in the context of applying bean flour in the integrated control of stored-product mites.

Intradermal testing with the storage mite Tyrophagus putrescentiae in normal dogs and dogs with atopic dermatitis in Colorado

2005 ◽  
Vol 16 (1) ◽  
pp. 27-31 ◽  
Author(s):  
RALF S. MUELLER ◽  
KATHRYN V. FIESELER ◽  
RODNEY A. W. ROSYCHUK ◽  
TRACEY GREENWALT
Keyword(s):  
Atopic Dermatitis ◽  
Tyrophagus Putrescentiae ◽  
Intradermal Testing ◽  
Storage Mite

Cardinium inhibits Wolbachia in its mite host, Tyrophagus putrescentiae, and affects host fitness

2021 ◽  
Vol 97 (10) ◽  
Author(s):  
Jan Hubert ◽  
Marta Nesvorna ◽  
Stano Pekar ◽  
Stefan J Green ◽  
Pavel B Klimov
Keyword(s):  
Population Growth ◽  
Ribosomal Rna ◽  
High Throughput Sequencing ◽  
Intracellular Bacteria ◽  
Bacterial Symbionts ◽  
Tyrophagus Putrescentiae ◽  
Generalist Species ◽  
Individual Level ◽  
Endosymbiotic Bacteria ◽  
Lower Population

ABSTRACT Interactions among endosymbiotic bacteria inside their eukaryotic hosts are poorly understood, particularly in mites. The mite Tyrophagus putrescentiae is a common, medically important generalist species that has many intracellular and gut bacterial symbionts. In the experiments, we examined bacterial abundances and composition in mite populations obtained by controlled mixing of stock mite populations that differed in the presence/absence of the major intracellular bacteria Wolbachia and Cardinium. Changes in microbial communities were characterized using 16S ribosomal RNA high-throughput sequencing (pooled mite individuals) and quantitative PCR for key microbial taxa (individual mites). Mite fitness was estimated as a parameter of population growth. We detected that in mixed mite populations, Cardinium and Wolbachia can co-occur in the same mite individual. The presence of Cardinium was negatively correlated with the presence of Wolbachia and Bartonella, while the Bartonella and Wolbachia were positively correlated in individual level samples. Since mixed populations had lower abundances of Wolbachia, while the abundance of Cardinium did not change, we suggest that the presence of Cardinium inhibits the growth of Wolbachia. The mixed mite populations had lower population growth than parental populations. The possible effect of symbionts on the fitness of mixed population is discussed.

Monitoring Tribolium castaneum (Herbst) in pilot-scale warehouses treated with β-cyfluthrin: are residual insecticides and trapping compatible?

2008 ◽  
Vol 99 (2) ◽  
pp. 121-129 ◽  
Author(s):  
M.D. Toews ◽  
F.H. Arthur ◽  
J.F. Campbell
Keyword(s):  
Population Growth ◽  
Pest Management ◽  
Tribolium Castaneum ◽  
Management Strategies ◽  
Pilot Scale ◽  
Population Trends ◽  
Pitfall Traps ◽  
Life Stages ◽  
Insecticide Application ◽  
Baited Traps

AbstractIntegrated pest management strategies for cereal processing facilities often include both pheromone-baited pitfall traps and crack and crevice applications of a residual insecticide such as the pyrethroid cyfluthrin. In replicated pilot-scale warehouses, a 15-week-long experiment was conducted comparing population trends suggested by insect captures in pheromone-baited traps to direct estimates obtained by sampling the food patches in untreated and cyfluthrin-treated warehouses. Warehouses were treated, provisioned with food patches and then infested with all life stages of Tribolium castaneum (Herbst). Food patches, both those initially infested and additional uninfested, were surrounded by cyfluthrin bands to evaluate if insects would cross the bands. Results show that insect captures correlated with population trends determined by direct product samples in the untreated warehouses, but not the cyfluthrin-treated warehouses. However, dead insects recovered from the floor correlated with the insect densities observed with direct samples in the cyfluthrin-treated warehouses. Initially, uninfested food patches were exploited immediately and after six weeks harbored similar infestation densities to the initially infested food patches. These data show that pest management professionals relying on insect captures in pheromone-baited traps in cyfluthrin-treated structures could be deceived into believing that a residual insecticide application was suppressing population growth, when the population was actually increasing at the same rate as an untreated population.

scholarly journals Effects of five different melon (Cucumis melo L.) cultivars on population growth of Aphis gossypii (Glover)

2021 ◽  
Vol 57 (No. 4) ◽  
pp. 310-317
Author(s):  
Evin Polat Akkopru ◽  
Serdal Bozkurt
Keyword(s):  
Population Growth ◽  
Pest Management ◽  
Life Table ◽  
Cucumis Melo ◽  
Growth Parameters ◽  
Aphis Gossypii ◽  
Management Program ◽  
Intrinsic Rate Of Increase ◽  
Rate Of Increase ◽  
Aphis Gossypii Glover

 In this study, population growth parameters of Aphis gossypii Glover (Hemiptera: Aphididae) on five different melons [Cucumis melo Linnaeus (Cucurbitaceae) cultivars (Balin, Çıtırex, 221 F1, Gediz, Yusufbey)], which are commonly grown in Turkey, were investigated in laboratory experiments. Life table parameters were estimated according to age-stage and two-sex life table theory. The results showed that A. gossypii developed more successfully on the Gediz cultivar due to the higher intrinsic rate of increase (0.5042 1/day), the finite rate of increase (1.6557 1/day) and the shorter mean generation time (8.161 days) than the other cultivars. Ecological pest control against aphids' use of resistance or less favourable host plant cultivars is considered one of the significant components of pest management. The findings obtained in this study can be used in the pest management program designed for the aphid.

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