Mit Sommerbeginn ist es auch wieder an der Zeit, die Stockwindeln einzulegen, eine Varroa-Diagnose durchzuführen und die Ergebnisse im Varroa-Warndienst einzutragen.

Neues Oxalsäure-Präparat zur Varroa-Bekämpfung zugelassen

Seit 13.01.2022 ist in Österreich das Präparat API-Bioxal 62 mg/ml Lösung zur Anwendung im Bienenstock zugelassen. Die genaue Beschreibung der Anwendung finden Sie in der Gebrauchsinformation.

Formicpro zur Varroabekämpfung zugelassen

Am 17.05.2021 wurde Formicpro® (Wirkstoff: Ameisensäure) in Österreich als Tierarzneimittel zugelassen. Der Wirkstoff ist auf Streifen imprägniert. Die Streifen werden auf die Oberträger der Rähmchen gelegt. Zulassungsinhaber ist die Firma…

Alerts

General Information

Aktuelle Situation

Der Varroa-Befallsgrad in den Monitoring-Völkern der Region ist generell niedrig.

Kontrolle

Wir empfehlen Ihnen dennoch, den Varroa-Befall Ihrer Völker vor und während der Hauptentmilbung zu kontrollieren bzw. Jungbienen auf Varroa-Schäden zu untersuchen, um die Schädigung Ihrer Völker richtig einschätzen zu können und die Wirksamkeit der Hauptentmilbung zu überprüfen.

Maßnahmen

Ab Mitte Juli bis spätestens Anfang August sollten Sie eine erste Hauptentmilbung durchführen. Wetterabhängige Behandlungsempfehlungen erhalten Sie im Varroawetter. Behandlungen sind effizienter, wenn sie regional so koordiniert werden, dass sie vom Großteil der Imkerschaft im selben Zeitraum durchgeführt werden.

Select a region for alerts and predictions

Infestation below threshold

Infestation within threshold

Infestation above threshold

No data available

5 Number of sites in this region. Sites are displayed when item is selected.

My prediction

Make your own prediction. You can modify various parameters such as initial infestation level, brood rearing activity of the colonies and the efficacy of scheduled treatments. The result is shown in the graph as a green line. Please note that only parameters set in the future can affect your prediction.

Enter current infestation level

Current infestation level (mites/day)

Start from today

Start from beginning of the year

Test the effect of brood rearing activity in the honeybee colonies on Varroa infestation

Brood rearing start (01.01. - 09.04.)

Brood rearing end (07.09.-15.12.)

Test the effect of a break in brood rearing activity

Start of brood break (from 09.04.)

End of brood break (to 06.09.), max. 4 weeks

Test the effect of treatments on Varroa infestation.

Date of treatment

Treatment efficacy

Date of treatment

Treatment efficacy

Current and predicted Varroa infestation

The data in this graph shows Varroa infestation levels measured by beekeepers at secific dates in monitoring beehives scattered throughout Austria. Based on this data, predictions are made and alerts are isssued via e-mail and social media.

What does the red (dotted) line mean?: The red line shows the threshold infestation level above which honeybee colonies may be damaged.
What does the black (continuous) line mean?: The black line shows the average infestation level of all available data.
What does the blue (broken) line mean?: The blue line shows the average infestation level of the selected region.
What does the green area mean?: The green area shows the result of the user-defined prediction.
What do the other coloured areas mean?: The coloured areas show the prediction.
What does the vertical black (broken) line mean?: The vertical black lines show the timing of Varroa treatments.

Mean of available data.

Mean Austria

Measured values selected region

Threshold

Prediction

Prediction selected region

My prediction

Current week

Treatment

Natural mite fall (mites per day)

This table shows a weekly summary of Varroa infestation levels in the selected region. The information on number of sites and hives should help you to properly judge the significance of the data. The threshold level of a given week should not be exceeded in order to avoid damage of your colonies.

How was the data measured?

varroa.table.description-faq1

Please refer to the working instructions for the monitoring project

What is a median?

The median is the value separating the higher half of a list of data ordered by size (e.g. mite infestation) from the lower half. For a data set, it may be thought of as the "middle" value. For example in the set of values 4, 1, 37,2,1, the number 2 is the median, because it is exactly in the middle of the ordered series 1, 1, 2, 4, 37

Mean of available data.

Week Week	Period Period	Average (colonies/sites) (mites per day)	Threshold (mites per day)
1	03.01.-09.01.22	0,2 (7/2)	0,4
4	24.01.-30.01.22	0,2 (4/1)	0,4
5	31.01.-06.02.22	0,1 (3/1)	0,4
6	07.02.-13.02.22	0,2 (2/1)	0,3
7	14.02.-20.02.22	0,1 (3/1)	0,3
9	28.02.-06.03.22	0,1 (8/4)	0,4
10	07.03.-13.03.22	0,1 (10/2)	0,5
11	14.03.-20.03.22	0,1 (11/2)	0,6
12	21.03.-27.03.22	0,2 (93/13)	0,7
13	28.03.-03.04.22	0,3 (192/24)	0,9
14	04.04.-10.04.22	0,4 (180/12)	1,0
15	11.04.-17.04.22	0,3 (81/9)	1,2
16	18.04.-24.04.22	0,2 (12/8)	1,5
17	25.04.-01.05.22	0,2 (78/8)	1,7
18	02.05.-08.05.22	0,2 (3/1)	2,1
19	09.05.-15.05.22	0,3 (1/1)	2,4
21	23.05.-29.05.22	0,1 (14/1)	3,3
22	30.05.-05.06.22	0,1 (26/2)	3,8
23	06.06.-12.06.22	0,6 (4/1)	4,3
24	13.06.-19.06.22	1,1 (7/2)	4,9
26	27.06.-03.07.22	6,3 (33/9)	6,4
27	04.07.-10.07.22	1,8 (19/2)	7,5
28	11.07.-17.07.22	1,2 (18/3)	8,8
29	18.07.-24.07.22	0,1 (28/3)	10,4
31	01.08.-07.08.22	1,4 (5/2)	12,4
32	Current week	0,6	2,7

Current year Varroa infestation level on a weekly basis (mites per day ). Average (median) national or regional infestation level (number of hives/number of sites).. WN: Week number. Threshold: Infestation level above which damage to colonies cannot be excluded.. (*): Prediction.

Information on Varroa Monitoring

What does a prediction tell us?

A prediction basically tells us what would happen if the mite popultaion in a honeybee colony conntinued to grow at the current rate and under the current assumptions (e.g. estimated size of mite population, brood rearing, Varroa control measures,...). The prediction does not consider unpredictable events, like a strong immigration of mites from neihgbouring hives or unusual weather conditions. You have the possibility to change a few parameters in order to adjust the predictions to your local conditions or management practices. Please note that a prediction is no substitute for a regular diagnosis of mite infestation in your colonies.

Why do predictions from different regions yield different results?

We assume that mite infections are different in various regions due to diferences in environmental conditions (e.g. weather, hive density, overall infestation,...). If you choose a region from the list, your prediction will be based on the parameters calculated for this particular region. In this way you get a prediction, which is specific for your region.

Please refer to the working instructions for the monitoring project