Search Results

15 results

  1. CORESTA Congress, Kyoto, 2004, APSSPT 02

    The implementation of integrated pest management on flue-cured tobacco cultivation in South Africa

    LUTTIG M.; GELDENHUIJS D.M.; VAN JAARSVELD E.; SCHOLTZ A.
    Lowveld Tobacco Growers Association, Nelspruit, South Africa
    The Lowveld Tobacco Growers Association (LTGA) has developed an Integrated Pest Management (IPM) program as an alternative approach to chemical crop protection. The IPM program includes seedbed implementation as well as field applications. During...
  2. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 03

    The influence of soil compaction and calcium on the uptake of phosphate for flue-cured tobacco

    DREYER J.G.; CLAASSENS A.S.; SCHOLTZ A.
    Lowveld Tobacco Growers Association, Nelspruit, South Africa
    The following problem have lead to this research project: The high application rate of phosphate by the tobacco farmer in the Lowveld and the low phosphorus content that where obtained in the leaves. Phosphates in the leaf correlate with leaf...
  3. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, AP 20

    Evaluation of tobacco cultivars and metalaxyl to reduce the impact of Phytophthora nicotianae in South Africa

    VAN JAARSVELD E.; WINGFIELD M.J.; DRENTH A.
    Lowveld Tobacco Growers Association, Nelspruit, South Africa
    Phytophthora nicotianae is an important root and stem pathogen of tobacco (Nicotianae tabacum L.) in South Africa. Growers strive to control the resulting disease, known as black shank, with metalaxyl treatments and by planting resistant cultivars....
  4. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 107, APOST6 (adjourned)

    Estimation of the state of nitrogen nourishment of tobacco using the N-tester

    KOWALCZYK-JUSKO A.; KOSCIK B.
    University of Agriculture, Lublin - Institute of Agricultural Sciences, Zamosc, Poland.
    The purpose of this work, based on a three years of field experiment, was to inspect whether it is possible to use a chlorophyll meter in fixing the nitrogen doses used in growing flue-cured tobacco. The relationship between the capacity of nitrogen...
  5. Bull. Spec. CORESTA Congress, Brighton, 1998, p. 112, APOST13

    Influence of aqua terra hydrogel on growth, development and yield of light cigarette tobacco

    KOSCIK B.; KOWALCZYK-JUSKO A.
    University of Agriculture, Lublin - Institute of Agricultural Sciences, Zamosc, Poland.
    The aim of introductory field and pot experiments which were carried out in Zamosc in the years of 1995-1997 was to study the influence of Aqua Terra hydrogel on the growth, development and yield of light cigarette tobacco. Hydrogels are substances...
  6. Bull. Spec. CORESTA Congress, Brighton, 1998, p. 117, P02

    Evaluating different metalaxyl formulations for control of black shank (Phytophthora nicotianae ) on flue-cured tobacco in South Africa and evaluating cultivars for resistance against black shank in combination with Ridomil G (metalaxyl)

    VAN JAARSVELD E.; SCHOLTZ A.
    Lowveld Tobacco Growers Association, Nelspruit, South Africa
    Black shank, caused by the fungus Phytophthora nicotianae is a highly destructive and wide spread tobacco disease in the Lowveld (South Africa). The aim of this study was: (1) to evaluate different metalaxyl formulations for controlling Black shank...
  7. Bull. Spec. CORESTA Congress, Brighton, 1998, p. 82, AP9

    Production of tobacco seedlings in pine-bark medium on permanent seedbed structures – the use of steam sterilization as opposed to methyl bromide

    SCHOLTZ A.; SONNENBERG S.M.; SMITH P.J.
    Lowveld Tobacco Growers Association, Nelspruit, South Africa
    The production of tobacco seedlings on permanent seedbed systems in composted pine-bark medium was developed over the past 6 years and are currently implemented by a vast number of commercial growers. The concept consists of a permanent constructed...