Table Grape
- Apples
- Banana
- Barley
- Beans
- Broccoli
- Cabbage
- Citrus
- Coffee
- Lettuce
- Maize
- Oilseed Rape
- Onions
- Peach
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- Table Grape
- Tomato
- Wheat
- Wine Grape
Wine Grape - Deformation
Symptoms
Only a few seeded berries set, most berries remain small and seedless. This is called millerandage, hen and chicken, or the pumpkin and pea symptom.
Reasons
Boron deficiency
Boron deficiency is one of the most serious nonparasitic grapevine diseases. It is observed especially on strongly acid soils (pH 3.5 - 4.5).
Boron deficiency made worse by
- Sandy soils
- Alkaline soils
- Soils low in organic matter
- High levels of nitrogen
- High levels of calcium
- Cold wet weather
- Periods of drought
Boron is important for
- Improves flowering
- Improves fruit set
- Gives more even ripening
- Increases alcohol level in berries
- Increases sugar level in berries