Evaluation of Some Synthetic Acaricides Against Varroa Destructor (Acari: Varroidae) in Turkey: an Indication of Resistance or Misuse of Fumigant Amitraz?

Yıl 2019, Cilt: 38 Sayı: 1, 67 - 70, 18.07.2019

Ahmet Onur Gırısgın Mehmet Ozuıclı Saidal Ali Bah Oya Gırısgın Levent Aydın

https://doi.org/10.30782/uluvfd.464281

Cited By: 1

Öz

The parasitic mite, Varroa destructor is one of the most important agents for substantial losses in honeybee colonies throughout the world.

Several acaricides consisting of synthetic and organic compounds are being used to combat mite. This study was conducted to determine the

efficacies of three synthetic acaricides in naturally infested honeybee colonies at consecutive two autumn seasons. Acaricides were commercial

preparations of coumaphos (liquid and plastic strips), amitraz (fumigation and plastic strip) and flumethrin (plastic and wooden strips)

as a treatment group consisting of eight hives per drug. A control group was kept in both seasons. All drugs were applied as prescribed to

the homogenised Varroa-infested honeybee colonies at consecutive two years. The evaluation of efficacies was based on the collected mite

percentage obtained with powdered sugar method and it was calculated through Henderson-Tilton’s formula. Dropped mites onto the pollen

drawers were also evaluated statistically and drugs were compared to each other. Results showed us the effective drugs (up to 90%) were

amitraz plastic strip, flumethrin wooden strip and coumaphos plastic strip with 98.5%, 96.5%, and 93.2% averages, respectively according to

formula if evaluated within two autumn seasons. Fumigation of amitraz is not sufficient if compared to others and the control group. This data

is discussed for suspicion of the possible resistance of mites or misuse of the product with this kind of application.

Anahtar Kelimeler

Acaricide, chemical, honeybee, Turkey, Varroa destructor

Kaynakça

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