Bio-Cide Distribution New Zealand
  • Our Philosophy

    Exceptional chemistry, Extraordinary people

     

    About Us

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  • Our People

     

    Donald Slade

    Don has travelled extensively and has provided support for growers in many parts of the World, including California and Washington State, USA,  Canada, Ecuador, Chile, Korea, Vietnam, The Middle East, South Africa, Kenya, Ethiopia, a 500Ha flower growing enterprise in Egypt, Iran, and Holland.

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  • Technical Documents

     

  • Our Products

  • Snail Mail

    Bio-Cide Distribution Ltd,
    PO Box 80,
    Waihi Beach 3642,
    New Zealand.

    Phone:
    Fax:

    +64 7 863 4852
    +64 9 973 0404

    Send us a message

    Technical horticulture inquiries
    Don Slade

    +64 27 442 1887
    gcs@inspire.net.nz

    Sales and chemistry inquiries
    Tony Wakelin

    +64 21 790 454
    tony.wakelin@bio-cide.co.nz

  • Donald. A. Slade

    M. Agric. Sci (Hort).
    Horticultural Consultant
    Grower Consultancy Services

    After Graduating from Massey University in Plant Science with special interests in Plant Pathology and Plant Biochemistry, Don Slade spent some years in New Zealand Government on Applied Research. Amongst his first assignments on graduation, was an evaluation of New Zealand peats as media for nursery crops, and liaison with DSIR Field and experimental work in the Auckland area including disease and pest control, which at that time included the Pseudomonas syringae epidemic on stone fruit. He later had responsibility for official recommendations for Disease and Pest Control on NZ Horticultural Crops. This was followed by a period establishing a technical Service for Fruitgrowers Federation Ltd in NZ. Several years were spent lecturing in Pomology, Tropical Horticulture, and Disease and Pest Management at Massey University. This included supervision of post graduate Masterate and PhD Students from NZ, Asia and India. One Masterate student studied the development of Kiwifruit flowering, determining that flowering developed unlike most fruits, in the buds formed in Spring immediately prior to blossoming. Sabbatical leave periods were spent at Universities and Research establishments in Australia, Hawaii, Europe, UCLA, Riverside and Davis, Cornell University, Ithaca New York, Yakima Valley Research Station, Washington State, USA, and in UK at East Malling and Long Ashton Research Stations. Lecturing assistance, while their staff gained added qualifications, was provided to the Regional School of Tropical Agriculture Western Samoa, that subsequently became the Agricultural Campus of the University of the South Pacific. An overseas posting with the Food and Agricultural Organisation (FAO) and United Nations Development Programme (UNDP), was undertaken to provide assistance to the Government Agencies in Baluchistan, to develop and establish Research and Advisory capabilities for local growers. Living on the Afghanistan border during the political instability present in Afghanistan and Iran in that period, and active in the Hindu Kush mountain area, provided a unique insight into life of the Islamic communities in that colourful part of the World, and an appreciation of the local cuisine. Additional activities undertaken, included providing assistance to the Government of Pakistan in their endeavour to eliminate opium production in the North West Frontier area, and in the isolated area of Gilget. Since the inhabitants of Gilget lived snow bound in their houses for several months in the Upper Karakoram Range, a large part of their energy was obtained from the cellar of wine that the houses were built over. During the time of Don’s visit, the new red wines hidden in and dispensed from tea pots, were being sampled at the numerous tea shops An FAO project was established as a result of this activity, to assist growers to produce a range of dried fruits with a reasonable economic return. Potential markets were in inland China, and Don was recorded as the 600th person to travel into China over the new Pakistan-China Mountain highway. A period was spent living in Rome providing support to these projects. Following this sojourn, an appointment as Senior South Pacific Agricultural Advisor to The Commonwealth Secretariat was undertaken, based at the University of the South Pacific’s campus in Samoa. This two year appointment extended to 6 years, and involved being Head of the Crop production Department, through to Acting Head of the School of Agriculture, and assistant to a new Pro-Vice Chancellor. Many University and regional activities were undertaken with the Regional Forum Pacific Countries, and during representation of the University at a USA AID Policy Meeting in the Marshal Islands, a visit was made to Bikini Atoll which was still recovering from the radioactive Atom Bomb tests. Meals at the local accommodation were shared by Don with astronaut Buzz Aldrin. The University assisted by providing a hydroponics set up on Kiribati, to enable the Hotel catering to tourists carried by Air Nauru, to be provided with fresh tomatoes and cabbage. So started the understanding and grounding in hydroponics techniques, that became one of Don’s specialities on his return to New Zealand, where continued research on methods was undertaken. Don was able to assist in NZ Government sponsored projects in the Pacific, and contributed to two five year development plans for Horticultural activities in the Cook Islands. Prior to this period overseas, in the mid-1970’s while at the Massey University, Don was involved in a private consultancy role with a large New Zealand nursery, which following plant exploration in the Pacific and Amazon areas, had difficulty in establishing new introductions intended for use as indoor plants. Many of these plants were Aroids. The concept of high health production was introduced and problems, mainly associated with root rots introduced by pathogens in ‘dirty’ media, were largely eliminated. The same features of high health production have continued to prove important in today’s production methods, especially now that the reduction in the use of expensive, and often environmentally undesirable pesticides is essential. A further encounter with Aroids had been made while working at the University of the South Pacific’s School of Agriculture, where a large USAID funded project was underway to improve the production of Taro. On return to New Zealand, Don’s Grower Consultancy Services, a Horticulture Consultancy, was established with specialist interests in Hydroponics and high health production of crops in soilless media. At this time, Sandersonia was a profitable crop and a large number of smaller growers of Sandersonia were assisted. Many were also evaluating Callas as a new Aroid crop. In the early 1990’s, attention was directed to tissue culture production of Callas, with later expansion into tuber and flower production of the New Zealand Coloureds, using hydroponics nutrients in high health run to waste systems, and artificial media. Excellent tuber quality and flowering was achieved using these methods, for tubers to be planted later in either soil or soilless media. Bacterial Soft Rot (Erwinia spp) was a serious problem, and following the use of Oxine® to clean up the Anthrax contamination in the USA which occurred subsequent to September 11 2001, Oxine® was trialled and found to be highly effective in controlling this and Pseudomonas diseases of Zantadeschia. When used, it was also effective against all foliar fungal problems. Its evaluation has been continued on a number of other problem diseases with great success. Since 2005 Don has travelled extensively and has provided support for growers in many parts of the World, including California and Washington State, USA, Canada, Ecuador, Chile, Korea, Vietnam, The Middle East, South Africa, Kenya, Ethiopia, a 500Ha flower growing enterprise in Egypt, Iran, and Holland. He has presented papers at an International Conference in The Philippines and more recently contributed to developments in the Rose Donyayee Horticultural Complex in Tehran, Iran and advised authorities on local Horticultural Education standards and requirements.

     

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