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Weather and Crop Protection

  • Weather and Crop Protection

Weather and Crop Protection

Erno Bouma

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Gives you the information to know how the weather affects diseases, plagues; and how to fight them, and also how to control them to obtain the best result for your crops.

About The Book

The weather greatly influences crop cultivation: it determines the growth and yield of the crop. It also largely affects the development of diseases and plagues. The application of crop protection agents, however, must not be seen as separate from the weather. The publication Weather & Crop Protection clearly and practically explains this relationship to agrarians and contract sprayers.
After reading the book Weather & Crop Protection, every agrarian and contract sprayer that deals with open cultivation knows how the weather affects diseases, plagues; and how to fight them, and also how to control them to obtain the best result for the crops, their wallets, and the environment.

Additional Information

Author Erno Bouma
Availability In Print
Dimensions 21 x 21cm (W x H)
Extent 84 pages
ISBN 978-90-8740-002-6
Publication date 2008
Book Type Softcover


1. Sun, a source of heat

  • Global radiation
  • Everything radiates heat
  • Night frost
  • Cloud cover: a warm duvet
  • Ice to prevent freezing
  • Weather report doesn't tell the whole story
  • Warming the soil
  • Covering beet heaps
  • Effect of temperature
  • Formulations
  • Rate of uptake
  • Weakest link dictates rate of uptake
  • Persistence and temperature
  • Insecticides in warm weather
  • Persistence of cereal fungicides
  • Powdery mildew no lover of heat
  • Insects prefer warmth
  • Heat soaks into the soil
  • Risk of bruising
  • Mulch tulips with straw
  • Risk of disease
  • Soil freezes
  • A lot of insects after a mild winter?

2. Moisture, something in the air

  • Water vapour in the air
  • Dew point temperature
  • Measuring humidity
  • Frozen lily scales
  • Condensation
  • Drought symptoms
  • Transpiration
  • Wind Chill
  • Transpiration equals cooling
  • What happens to evaporated moisture?
  • Dew
  • Fungal infections
  • Germination of fungi
  • Dew comes from the soil
  • Water and air
  • Uptake of soil herbicides
  • Leaf cuticle: a barrier to absorption?
  • Selectivity
  • Old or young leaves
  • Dynamics of the wax layer
  • How are products absorbed?
  • Oil-based formulations
  • Water-based formulations
  • The right time to apply
  • Adjuvants
  • Ideal formulation
  • Release of fungal spores
  • Leaf wetness and fungal infection
  • When to apply contact fungicides?
  • Systemic fungicides
  • Transport of products in the plant
  • Downy and powdery mildew
  • Drying equals cooling

3. Precipitation, a gift from the gods

  • Where does rain come from?
  • The force of raindrops
  • Hailstones: like a yo-yo
  • Hail damage
  • Precipitation pattern in Europe
  • Wide differences from year to year
  • Precipitation forecast
  • Usefulness of rainfall radar
  • Sprinkle irrigation and crop protection
  • Not too cold
  • Precipitation after spraying
  • Liquid formulations
  • Herbicides
  • Herbicide selectivity and weather
  • Drying time of a crop protection agent
  • Fungicides
  • Rain after spraying
  • Systemic fungicides

4. Wind, both friend and foe

  • Measuring wind
  • Wind speed indicator
  • The Beaufort scale
  • Wind force
  • Variable flow
  • Boundary layer turbulence
  • Obstacle flow
  • No wind? Don't spray!
  • Right droplet size
  • Weight and speed of droplets
  • Contact-acting herbicides
  • Pesticide coverage
  • Droplet size of soil-acting herbicides
  • Droplet size of contact fungicides
  • Droplet size of systemic fungicides
  • Droplet size of insecticides
  • Legislation
  • Changing wind strength

5. Resources and information

  • Don't rely on them blindly
  • Potato late blight
  • Pest and diseases in vegetables
  • Morph-group
  • Scab in apples and pears
  • Lower application rate required
  • Leaf blight and downy mildew
  • Agricultural information
  • Online info
  • DIY measuring
  • Temperature
  • Humidity
  • Grass minimum temperature
  • Precipitation
  • Wind direction and speed
  • Measuring air pressure

6. Practical applications

  • Cereals
  • Sugarbeet
  • Onions
  • Potatoes
  • Oilseed rape
  • Maize


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