Why do dogs itch in the country?

Q WE recently moved near to the South Downs and I have noticed my labrador gets itchy when we walk in the countryside. Could it be grass mites? A

I THINK it is likely that mites are causing the problem. There is a mite called Neotrombicula autumnalis which is prevalent at this time of year. It is also called the harvest mite because it mainly causes problems in the autumn.

The mite likes chalky soil making the Downs a perfect environment for them.

But it can be found in most parts of the country. The mite is free-living in vegetation and only the larval stage attacks animals.

The larvae attach to skin to feed on blood and then drop off to develop into the adult. Some animals develop an allergy to the bites, rather like with fleas. Allergic animals will be very itchy around their feet and abdomen.

I expect the people who have mentioned grass mites to you are dog owners themselves because the signs occur every year.

A check-up with your vet will most likely confirm the presence of the mites. There are various anti-parasite preparations for treatment and anti-inflammatory drugs may be needed to reduce the itching. Avoiding the Downs during mite season is probably best although with climate change it may extend into December. David Grant MBE was a vet at the RSPCA Harmsworth Hospital for Animals. Write to him at Express Yourself, 10 Lower Thames Street, London EC3R 6EN. He is unable to enter into individual correspondence.