How do you prevent blowfly strikes in sheep?

This parasite affects sheep in the summer months but can affect sheep from April, right up until November. Female flies will lay eggs in a soiled fleece preferably as they are attracted to the smell, so dagging/crutching dirty sheep with a shears will greatly reduce the risk of Blowfly strike.

How do you control a blowfly strike?

Crutching and shearing It may also include removing wool from the head (particularly rams) and from the bellies of male sheep. Shearing, on the other hand, is the complete removal of wool. The timing of crutching and shearing is key in reducing the risk of flystrike.

How can a farmer prevent blowfly strike?

Prevention – the key to good blowfly management If strike does occur, farmers must be quick to act with an SP pour-on such as cypermethrin (Crovect®) or an OP dip to minimise distress, prevent production losses and even the death of affected animals.

How do you fix a fly strike on a sheep?

General principles for treating flystruck sheep include: Removal of struck wool. Clipping the wool allows for the infected skin to dry out as well as exposing maggot trails. Clipping should extend 4-5cm into clean wool to ensure all maggot trails have been exposed.

What do you use for fly strike?

There are 5 separate types of chemicals that can be used to prevent flystrike: Organophosphates (e.g. protamphos). Synthetic Pyrethroids (e.g. cypermethrin). Insect growth regulators (e.g. triflumuron).

What kills maggots instantly on sheep?

A good soaking with an insecticidal organophosphate or high-cis cypermethrin dressing will then kill the maggots and protect the surrounding skin from secondary strike. It may be necessary to massage the dressing into the damaged tissue using a gloved hand.

Can you prevent flystrike?

Keeping your rabbit clean and dry is the main way to prevent them developing flystrike. Monitor your rabbit’s urination by checking for damp fur regularly. Any incontinence will lead to urine soiling of the fur and attract flies. Feed your rabbit a healthy diet, of hay or fresh grass and vegetables.

How do you use fly spray on sheep?

It is very important to consistently apply these products over the full body length, i.e. poll to tail along the back of the sheep, equally along each side of the spine of the sheep exactly as specified on the label. Failure to treat the specified target area may lead to reduced or incomplete flystrike protection.

What do you put on fly blown sheep?

Treatment of struck sheep

1. Shear struck wool and a 5 cm barrier of clean wool around the strike close to the skin to remove maggots.
2. Collect the maggot-infested wool into a maggot-proof (plastic) bag and leave the bag in the sun for a couple of days to kill all maggots.

How do you prevent maggots in sheep?

7 ways to prevent maggots on your sheep farm

1. Use preventative products early in the season.
2. Correct Use of products.
3. Strategic culling.
4. Shearing and Dagging.
5. Ensuring adequate worming protocols.
6. Reduce the incidence of footrot.
7. Decreasing the number of flies on the farm.

What kills maggots on sheep?

Where maggots may remain, a dressing that rapidly kills maggots should be applied; these contain either ivermectin, spinosyn or organosphosphates. There is a high level of resistance to the organophosphate, diazinon, which may reduce its effectiveness in killing larger larvae.

What do you spray sheep with?

There are several spray-on products registered for application to long wool sheep for blowfly control. The active ingredient in these is cyromazine, dicyclanil or alpha-cypermethrin. Dicyclanil products may also be used off-shears.

How do you use Crovect?

Apply as a fan-spray to the surface of the fleece on the back and hindquarters of the sheep using the Pour-On Gun fitted with the fan-spray nozzle. Apply directly using the T-bar nozzle only to the areas affected by strike. Ensure that all affected parts are treated.

What can I use for fly strike?

Non-chemical tools Footrot, pizzle rot, urine stain, blood, fleece rot and lumpy wool are also major fly attractants that provide moist conditions in the fleece. Shearing and crutching are partially effective flystrike preventatives, because they reduce fleece moisture and contaminants.

How often do you apply Crovect?

One application of Crovect before the start of the headfly season will give up to 4 weeks protection. Re-treat as required. *Do not administer to animals of less than 12.5kg bodyweight at the blowfly prevention dose.

What does Crovect treat?

When looking for wider ectoparasite control, use Crovect™, a synthetic pyrethroid, offering sheep treatment and control options for ticks, biting lice, headflies, and blowfly. Crovect™ can be used for the treatment of tick infestations with a persistent efficacy of 10 weeks.