Farmers’ economic interest in Dermanyssus gallinae control

Poultry red mite or Dermanyssus gallinae (De Geer, 1778) is the most significant poultry ectoparasite with regards to health and economy. It is a widely accepted opinion that D. gallinae can only be suppressed, with the current annual expenditure of 60 eurocents per layer. However, research indicates that D. gallinae can be controlled in other ways and eradicated from the production facilities and farms, and subsequent reinfestation can be prevented by implementing biosafety measures. This provides a long-term or permanent effect of D. gallinae control. From the aspect of economy, this means that after decades of increasing expenditures, farmers can first decrease, and then completely eliminate expenditures incurred by D. gallinae. Therefore, economic calculations should be based on an expert and comprehensive approach, which should itself be based on rational control, preventive veterinary medicine, i.e. D. gallinae control program. This would result in long-term savings. In 10 years? time, 0.5 million euros would be saved per 100.000 layers. There are an estimated 4 billion infested layers worldwide.

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The control program of red poultry mite (Dermanyssus gallinae), today

Archives of Veterinary Medicine ◽

10.46784/e-avm.v11i2.27 ◽

2019 ◽

Vol 11 (2) ◽

pp. 71-88

Author(s):

Aleksandar Pavlićević ◽

Radomir Ratajac ◽

Igor Stojanov ◽

Ivan Pavlovic

Keyword(s):

Control Program ◽

Dermanyssus Gallinae ◽

Poultry Production ◽

Short Term ◽

Development Of Resistance ◽

Efficient Suppression ◽

Term Objective ◽

Poultry Mite

Dermanyssus gallinae control has so far been predominantly based on acaricides (insecticides) and their efficacy has been decreasing in time due to the development of resistance. D. gallinae is a species that has developed resistance to all current acaricides. Considering this, we can assume that the new acaricide - fluralaner with its evident efficacy, but also with some downsides, will improve the situation in D. gallinae control in the short term. The control of red poultry mite population in intensive poultry production has had an unfavourable tendency for decades. In order for this trend to be stopped and reversed, certain measures must be taken to the control of this disease. It is necessary to eliminate toxicological risks; define the short-term objective (efficient suppression) and the long-term one (eradication); introduce the principles of biosecurity, prevention, and rational control; provide a professional application of formulations and increase the quality of monitoring. The D. gallinae program control integrates all the above specified elements into a whole. In our opinion, the currently used program currently used on farms, based on mechanical control and active influence on technological processes, has a bright future. This type of control can be combined with other efficient methods of mite suppression on farms.

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AN EXAMPLE OF RATIONAL DERMANYSSUS GALLINAE CONTROL – PULCAP

Archives of Veterinary Medicine ◽

10.46784/e-avm.v12i1.39 ◽

2019 ◽

Vol 12 (1) ◽

pp. 71-85

Author(s):

Aleksandar Pavlićević ◽

Radomir Ratajac ◽

Igor Stojanov ◽

Ivan Pavlović

Keyword(s):

Clinical Results ◽

Dermanyssus Gallinae ◽

Economic Damage ◽

External Application ◽

Spray Method ◽

Program Plan ◽

Rational Control ◽

The Cost ◽

New Generation

The irrational control of Dermanyssus gallinae ectoparasites (De Geer, 1778) in intensive livestock can cause health problems, economic damage, and can also toxicologically harm the health of humans and the environment. Formulation P 547/17 (Pulcap) is a new generation of inert matter (an oil). In Pulcap formulation and technology, the fulfilment of rigorous criteria for rational control of D. gallinae were tested and present in this paper. Those criteria are the following: the safety of the preparation (i.e. the preparation is non-toxic); the feasibility of application of the preparation in facilities, for handling transport cages, on used cages and equipment, as well as in inhabited buildings; the method of application - the preparation is applied by spray method (external application). The aim of the application was also considered. It is to make the control effective, on the condition that eradication is feasible. Then, the conditionality, which imply that the application of this preparation requires fulfilling hygienic conditions, break of production in facilities, a certain temperature and professional approach to it. The efficacy of the preparation is another important criterion. It implies that the clinical results of the application have been monitored in different conditions at different time intervals. It has been proven that there is no resistance to this preparation. The disadvantages of the preparations were also observed. It is the absence of prolonged action on absorbent surfaces, the delay in starting the egg bar and discharging, which increases contamination. The whole program / plan of long-term control has been developed. The cost-effectiveness of the product is the ratio of price and efficiency on an annual level. Eradication is the most economical method of controlling D. gallinae, which relieved farmers from all further costs. There is a great challenge for each type of D. gallinae control, especially the rational one. Reconsidering and further development of the approach of rational control is a way to improve the control of D. gallinae, which we want to encourage.

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Efficacy of Beauveria bassiana against the poultry red mite, Dermanyssus gallinae (De Geer, 1778) (Mesostigmata: Dermanyssidae), under laboratory and hen house conditions

Systematic and Applied Acarology ◽

10.11158/saa.25.5.10 ◽

2020 ◽

Vol 25 (5) ◽

pp. 895-905 ◽

Cited By ~ 1

Author(s):

Daian Guilherme Pinto De Oliveira ◽

Cristiane Regina Kasburg ◽

Luis Francisco Angeli Alves

Keyword(s):

Beauveria Bassiana ◽

Culture Media ◽

Control Program ◽

Mite Population ◽

Dermanyssus Gallinae ◽

Control Group ◽

Poultry Red Mite ◽

Fungal Development ◽

Before And After ◽

Different Temperatures

Dermanyssus gallinae (De Geer) (Mesostigmata: Dermanyssidae) is one of the most important hematophagous ectoparasites of laying hens. Chemical acaricides are the basis of a control program of this mite. In addition to their relative efficiency, there are many side effects associated with these chemical products. In an effort to generate more options for the mite control, entomopathogenic fungi were evaluated for use in the control of D. gallinae in laboratory and field conditions. Conidia suspensions of Beauveria bassiana strains were applied to mites (1×108 viable conidia/ml). Out of 39 strains, four isolates were selected according to their acaricidal activity (confirmed mortality ≥70%). Growth and reproduction parameters on culture media and fungal development at different temperatures were also evaluated. Finally, the efficacy of the selected strain was determined in a commercial laying hen house. A suspension of conidia (1 × 109 viable conidia/ml) was sprayed around the cages. Seven days later, another suspension was applied. A control group was sprayed with water. Paper towel traps were used to estimate the mite population before and after treatments. Mite traps were placed one week before the first fungal application and changed weekly for up to three weeks after application (-7; 0; 7; 14 and 21 days). In lab studies, B. bassiana strain Unioeste 88 was the most effective, causing 73.8% mortality and showing high conidia production (7.1 × 108 conidia/colony and 7.7 × 108 conidia/g, respectively, on PDA and rice). There was no fungal development at temperatures ranging from 35 to 45 °C. In the field test, the fungus reduced the mite population efficiently (64.8%), while the mite population increased by 281% in untreated plots. B. bassiana strain Unioeste 88 has the potential to be commercially used to control the poultry red mite.

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Long-Term Survival Of Equine Surgical Colic Cases At The Koret School Of Veterinary Medicine During The Years 2010-2015

Equine Veterinary Education ◽

10.1111/eve.68_12792 ◽

2017 ◽

Vol 29 ◽

pp. 30-31

Keyword(s):

Veterinary Medicine ◽

Term Survival ◽

Long Term Survival

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Case of Human Infestation with Dermanyssus gallinae (Poultry Red Mite) from Swallows (Hirundinidae)

Pathogens ◽

10.3390/pathogens10030299 ◽

2021 ◽

Vol 10 (3) ◽

pp. 299

Author(s):

Georgios Sioutas ◽

Styliani Minoudi ◽

Katerina Tiligada ◽

Caterina Chliva ◽

Alexandros Triantafyllidis ◽

...

Keyword(s):

Phylogenetic Analysis ◽

Cytochrome C ◽

Cytochrome C Oxidase ◽

Clinical Symptoms ◽

Skin Lesions ◽

Coi Gene ◽

Dermanyssus Gallinae ◽

Poultry Red Mite ◽

Human Form ◽

Bayesian Phylogenetic Analysis

Dermanyssus gallinae (the poultry red mite, PRM) is an important ectoparasite in the laying hen industry. PRM can also infest humans, causing gamasoidosis, which is manifested as skin lesions characterized by rash and itching. Recently, there has been an increase in the reported number of human infestation cases with D. gallinae, mostly associated with the proliferation of pigeons in cities where they build their nests. The human form of the disease has not been linked to swallows (Hirundinidae) before. In this report, we describe an incident of human gamasoidosis linked to a nest of swallows built on the window ledge of an apartment in the island of Kefalonia, Greece. Mites were identified as D. gallinae using morphological keys and amplifying the Cytochrome C oxidase subunit I (COI) gene by PCR. Bayesian phylogenetic analysis and median-joining network supported the identification of three PRM haplogroups and the haplotype isolated from swallows was identical to three PRM sequences isolated from hens in Portugal. The patient was treated with topical corticosteroids, while the house was sprayed with deltamethrin. After one week, the mites disappeared and clinical symptoms subsided. The current study is the first report of human gamasoidosis from PRM found in swallows’ nest.

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Comparison of in vivo and in vitro survival and fecundity rates of the poultry red mite, Dermanyssus gallinae

Research in Veterinary Science ◽

10.1016/j.rvsc.2009.08.002 ◽

2010 ◽

Vol 88 (2) ◽

pp. 279-280 ◽

Cited By ~ 6

Author(s):

S. Arkle ◽

D.R. George ◽

J.H. Guy ◽

O.A.E. Sparagano

Keyword(s):

Dermanyssus Gallinae ◽

Poultry Red Mite ◽

In Vitro Survival

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Adaptive Development of Yellow Toadflax (Linaria vulgaris) Chemical Control Recommendations

Invasive Plant Science and Management ◽

10.1614/ipsm-d-14-00082.1 ◽

2015 ◽

Vol 8 (3) ◽

pp. 276-283

Author(s):

Travis L. Almquist ◽

Katie L. Wirt ◽

Jason W. Adams ◽

Rodney G. Lym

Keyword(s):

North Dakota ◽

Development Program ◽

Control Program ◽

Management Approach ◽

Application Timing ◽

Linaria Vulgaris ◽

Yellow Toadflax ◽

Nontarget Species ◽

Adaptive Development

AbstractYellow toadflax (Linaria vulgaris P. Mill.) infestations in North Dakota increased 300-fold from 1997 to 2011, when the plant was added to the state noxious weed list. Long-term control of other invasive species had included biological control agents, but no effective agents for yellow toadflax had been identified, so a control program using herbicides was needed. The objective was to shift from short-term control with picloram applied in the fall at maximum allowed rates to long-term management with minimal nontarget species impact with an adaptive management approach. Yellow toadflax control was increased from an average of 64% with picloram at 1,120 g ha−1 alone 12 mo after treatment (MAT) to over 90% when applied with diflufenzopyr while the picloram rate was reduced 50%. Yellow toadflax control with aminocyclopyrachlor applied at 140 g ha−1 ranged from 91 to 49% 12 MAT when applied in June or September, respectively. In contrast, yellow toadflax control with picloram plus dicamba plus diflufenzopyr averaged > 90% regardless of application date during the growing season. Land managers now have at least two options for long-term yellow toadflax control with a wide window of application timing. The goal of replacing a single high-use–rate herbicide treatment was met but both picloram and aminocyclopyrachlor can injure many desirable forbs. However, application timing can now be adjusted to have the least impact on nontarget species. The adaptive development program led to a 58% reduction in yellow toadflax infestations in North Dakota by 2014.

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