GardenMessenger

This blog reviews the latest products, plants and innovations in gardening. It also provides a link for my many gardening friends who are members of the GardenMessenger and Seedmessenger Yahoo groups and their sub-groups that I moderate.

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Location: Australia

I am a semi-retired UK botanical garden curator and former international horticultural consultant, who has worked extensively in Europe, the Middle East, North America and Australia. I spend part of the year in Australia and part in Europe, mainly due to family and work commitments. I earn my living from writing and editing Internet copy, articles and books. I have written over fifty books on gardening and have been translated into twenty-four different languages. I am a former UK Garden Writer of the Year and a previous Quill & Trowel Award Winner from the Garden Writer’s Association of America. I am interested in developing gardening communities on the Internet and I manage the popular GardenMessenger Yahoo group, along with its various sub-groups like PondMessenger and SeedMessenger. I also edit International Water Gardener and its associated regional web-sites.

Thursday, July 20, 2006

Tomato Problems

Late or Potato Blight

One of the most active groups in the GardenMessenger Community is that devoted to the growing of tomatoes, both heirloom and modern kinds. In response to the needs of the TomatoMessenger group a practical information section of the GardenMessenger web-site is being developed and the first of a series of Tomato Growing Guides has been added today. The subject:- Tomato Problems - Fungal Diseases. To provide a glimpse of the way in which the subject is being approached, the reference to Late or Potato Blight is given here.

Late or Potato Blight - Phytophthora infestans
Occurs: Especially in temperate areas and sub-tropical highlands.
Symptoms: A very common disease that causes water-soaked patches and lesions to appear on stems and leaves, often causing entire foliage loss. Large leathery lesions appear on fruits at all stages of development.
Development: Extended periods of rain or leaf wetness in cooling temperatures provide the ideal conditions for the disease’s occurrence. It does not occur in hot dry weather.
Control: The disease persists in live plant debris, especially volunteer potato tubers, the spores being carried on the wind and by the splash of water, so good garden hygiene is essential. There are fungicides which will control the disease.

To learn more about other tomato fungal diseases click here

Happy Gardening

Philip

GardenMessenger

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