Wset Diploma D1 - Chapter 4 Exam Questions Answered Correctly Latest Update 2026

WSET DIPLOMA D1 - CHAPTER 4 EXAM QUESTIONS ANSWERED CORRECTLY LATEST UPDATE 2026 What factors influence viticulture approach (7)? - Answers Overall approach including world view & ethics Desired level of production Wine quality ROI Cost Availability of labor Environmental impact What are the 5 approaches to grape growing? - Answers Conventional Sustainable Organic Biodynamic Precision Viticulture changes in the 2nd half of the 20th Century focused on what 2 things? - Answers Raising production levels Reducing labor requirements How were production levels and reduced labor requirements achieved in the 2nd half of the 20th century (4)? - Answers Mechanization Chemical inputs Irrigation Clonal selection What are 4 advantages of a monoculture? - Answers Mechanize the work in the vineyard Reduce competition from other plants Focus on the needs of the grape varietal planted Increase yields when reducing costs What are 3 disadvantages of a monoculture? - Answers Plants in a monoculture are more prone to pest/disease Nutrient depletion leading to more fertilizers Residual chemical find way to ground water or the air What are the 3 themes of sustainable viticulture? - Answers Economic Social Environmental sustainability What does sustainable viticulture aim to promote (6)? - Answers Natural ecosystems in the vineyard Maintain biodiversity Manage waste Minimize chemical use Minimize energy use Reduce the impact of viticulture on the environment How do grape growers use sustainable viticulture to minimize chemical application? - Answers Understand lifecycles of the vine Understand vineyard pests Monitor weather forecasts To apply chemicals when needed vs. regimented cycle What is the french name for integrated pest management (IPM)? - Answers Lutte raisonee What is Integrated Pest Management (IPM)? - Answers A system to use chemicals only when necessary What are the components of Integrated Pest Management (IPM)? - Answers Setting thresholds at which to take action Identifying and monitoring pests Setting up preventative measures Evaluating and implementing control options Name an institution that supports grape growers' IPM programs. - Answers Univ of California IPM department What guidance does the UC IPM department provide (4)? - Answers When to look for a pest The signs of a pest Photos of the pest and its damage How to determine when to apply treatments How does the grape grower manage vineyards sustainably (4)? - Answers Anticipate problems Boost the vine's own defense mechanisms Act when economic threshold met (damage $ chem $) Act at the most effective time What are examples of sustainable viticulture standards - Answers LODI RULES Sustainable winegrowing NZ Sustainable winegrowing South Africa What are 4 advantages of sustainable viticulture? - Answers Focus on economic, social and environmental impact Use of scientific approach to threats Reduction in spraying synthetic/traditional treatments Cost savings What are 2 disadvantages of sustainable viticulture? - Answers No clear definition of "sustainable" Setting the bar to loo to meet "sustainable" What is the goal of organic viticulture (4)? - Answers Improve the soil Improve the range of microbes/animals in the soil Improve the health and disease resistance of the vine Stop the use of man-made fertilizer, fungicides, herbicides, and pesticides What are the key features of Organic Viticulture? - Answers Use of compost to release nutrients, improve structure and increase biomass in soil Use of cover crops to prevent erosion and improvement to life of soil Use of natural fertilizer Reduce monoculture of vineyards by growing cover crops, hedges, and establis islands of biodiversity How do organic growers fight mildew (2)? - Answers Traditional remedies such as sulfur and copper Monitor weather for timing Why are some organic growers moving to careful use of synthetic chemicals instead of traditional remedies? - Answers Prevent heavy buildup of copper in the soil What are organic growers using in addition to sprays? - Answers Natural predators Ecosystem mechanics What are examples of natural predators or ecosystem mechanics - Answers Use of Bacillus Subtilis to fight grey rot Sexual confusion Pheromone tags or capsules to disrupt insect mating What standards should all organic certification bodies meet? - Answers Int'l Federation of Organic Agriculture Movements What is a universal requirement of organic - Answers Vineyard must undergo a period of conversion prior to certification What are examples of 2 factors that drive up the cost of organic farming? - Answers Lower yields Additional labor What percent of Europe vineyards are certified organic or in conversion? - Answers Almost 10% What percent of the world's organic vineyards does Europe represent? - Answers 85% What are the 6 largest markets for organic wine? - Answers France Germany USA Italy UK Austria What are 4 advantages of organic grape growing? - Answers Focus on health and disease-resistance of vine and soil Reduction of chemical treatments Eliminating the use of synthetic chemicals Cost savings of synthetic chemicals