Introduction

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Company name: Bayer plc

Address: Animal Health Division

Bayer House, Strawberry Hill,

Newbury

Berkshire RG14 1JA

Telephone: 01635 563000

Fax: 01635 563622

Email: animal.health@bayerhealthcare.com

Website: www.bayer.co.uk/products/animalhealth.html

Presentation

An opaque white plastic beehive strip containing flumethrin (85%) 4.23 mg (equivalent to 3.6 mg flumethrin 100%).

Uses

For the demonstration (diagnosis) and control (therapy) of flumethrin sensitive Varroa jacobsoni in honeybees.

Dosage and administration

How to use

Bayvarol strips are suspended into the spaces between the combs in the central brood-rearing area in such a way that they can be occupied by bees on both sides. Both tabs are bent outwards in the same direction at the marked fold lines and hooked over the top edge of the wooden frame (see Fig. 1).

For large colonies occupying several brood chambers, two strips can be joined together end-to-end which enables their insertion into and removal from the bee spaces without having to separate the brood chambers (see Fig. 2).

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Normally developed colonies receive four strips.

Nuclei and young colonies receive half that dose, ie. two strips.

Large colonies occupying several brood chambers receive four strips per chamber, which are distributed over the central bee spaces in each brood chamber.

When to use

Best efficacy is to be expected when Bayvarol is used in late summer after the honey harvest. Ideally the strips should not be used during peak honey flow periods. However, Bayvarol can be used at any time of the year for diagnosis or in severe infestations where there is a threat to the survival of the colony.

1. Diagnosis

The strips are inserted into the colony for 24 hours.

Before inserting the strips the floor tray is covered with a clean sheet of paper. This is then checked for the presence of dead Varroa mites 24 hours later.

2. Therapy

The strips should be left in the colonies for a maximum of six weeks and then removed.

Contra-indications, warnings, etc

Precautions

Avoid the strips coming into contact with honey to be harvested for human consumption.

Protection of operatives

Wash hands after handling the strips, before meals and after work.

When using do not eat, drink or smoke.

Withdrawal Periods

No withdrawal period for honey is required regardless of when in the year Bayvarol is used. Other bee produce should not be taken for human consumption until the spring following treatment.

Pharmaceutical precautions

Do not store above 25°C.

Store away from food, drink and animal feedingstuffs.

Do not open foil bags until immediately prior to use.

Once opened the strips should be used and discarded within 6 weeks.

Unused product or waste material should be disposed of in accordance with current practice for pharmaceutical waste under national waste disposal regulations.

Flumethrin is dangerous to fish; do not contaminate ponds, waterways or ditches with the strips or used packaging.