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Ziram is a commonly used fungicide in apple orchards to prevent the growth and spread of fungal diseases like apple scab, powdery mildew, and cedar apple rust. But what exactly is Ziram, and how should you use it safely and effectively in your apple orchard?
Ziram is a zinc-containing compound that belongs to the dithiocarbamate group of fungicides. It works by interfering with the metabolic processes of fungi, preventing them from reproducing and causing damage to apple trees. Ziram comes in the form of a wettable powder or a flowable liquid that can be applied as a foliage spray or a soil drench.
When applying Ziram to your apple trees, it’s important to follow the instructions carefully and take proper precautions to avoid exposure and contamination. Always wear protective clothing, gloves, goggles, and a respirator when handling or applying Ziram, and avoid spraying during windy or rainy conditions. It’s also important to avoid spraying when the temperature is above 85°F, as high temperatures can cause the product to break down and lose its effectiveness.
To use Ziram as a foliage spray, mix the recommended amount of the product with water and apply evenly to the leaves and fruit of your apple trees using a high-pressure sprayer. You should apply the spray as soon as the apple trees start to leaf out in the spring and continue every 10-14 days until harvest time. Be sure to alternate Ziram with other fungicides to prevent the development of resistance in the fungi.
Ziram can also be applied as a soil drench to protect apple trees from soil-borne diseases like root rot and collar rot. To apply the drench, mix the recommended amount of Ziram with water and pour it around the base of the tree, taking care not to let it come into contact with the foliage or fruit of the tree.
Overall, Ziram can be an effective tool in the fight against fungal diseases in apple orchards, but it’s important to use it safely and responsibly to protect yourself, your orchard, and the environment. If you have any questions or concerns about using Ziram or other fungicides, consult with a certified arborist or extension agent for guidance.