Grapevines require annual pruning to remain productive and manageable and to achieve consistent yields. Dormant vines are pruned in early spring to adjust pruning severity to account for midwinter cold injury. Growers control production by pruning to achieve consistent yields. Grapevines can potentially produce 10-12 tons per acre (average is 5 tons). Allowing vines to overproduce reduces vigor and future yields.
Processed tomato products fall into two categories: high value products and soft products. High value includes whole peel products such as whole tomatoes, diced tomatoes, and salsa. Ketchup, sauces, and juice are considered soft products. Tomatoes used for high value products receive higher market prices. Approximately 80% of the tomatoes raised in Indiana go into high value products.
Spray recommendations for Downy Mildew on the following crops:
Citrus greening is one of the most devastating diseases of citrus in Asia. Citrus greening was first identified in South Africa fifty years ago. It is now found all over the tropical and subtropical countries of Asia. In the Philippines, citrus greening is the main reason why citrus production fell by 60% between 1961 and 1970. In Vietnam, up to 90% of the citrus trees in some areas are believed to be infected with citrus greening.
Angular leaf spot (ALS) is a bacterial disease caused by Xanthomonas fragariae, a pathogen highly specific to both the wild and the cultivated strawberry, Fragaria x ananassa.
Existen varios factores que favorecen en gran medida el desarrollo de las enfermedades en cultivos realizados bajo cubiertas protectoras:
El medio ambiente modificado, que se caracteriza por condiciones de temperatura, humedad relativa, fertilización elevadas, ausencia de viento, propician el crecimiento y multiplicación de patógenos.