As apple plants enter the stage of fruit development, the importance of proper care and management becomes increasingly vital. One key aspect of this stage is the application of sprays after 20 days following the walnut stage. In this article, we will discuss the reasons for the application of sprays during this stage and the appropriate steps to take.
The main reason to apply sprays after fruit development begins is to protect the fruit from diseases and pests. During the initial stages of fruit development, apples are vulnerable to a multitude of organisms that can damage or destroy the fruit. This includes fungal diseases, such as apple scab and powdery mildew, and pests, such as aphids and mites. Therefore, it is essential to apply sprays that can prevent these organisms from causing harm to the crop.
There are two main types of sprays that can be used during the fruit development stage: fungicides and insecticides. Fungicides are designed to protect the crop from fungal diseases, while insecticides target pests that may damage the fruit. It is important to use the appropriate type of spray based on the specific problems present in the orchard.
When applying sprays, several factors must be considered to ensure effective treatment. First, it is important to monitor the orchard closely for any signs of disease or pests. This involves regular inspection of the trees and fruit to identify any problems early. Additionally, weather conditions should be taken into account when planning the application of sprays. For example, heavy rain can wash away sprays or prevent them from adhering to the foliage.
The application of sprays also requires proper technique to achieve maximum effectiveness. The sprays should be applied evenly and thoroughly, covering all surfaces of the trees and fruit. This may involve the use of specialized equipment, such as sprayers or foggers. Care should also be taken to avoid spraying in windy conditions, as this can lead to uneven application or drift.
In conclusion, the application of sprays after 20 days following the walnut stage is an essential step in the successful management of apple orchards during the fruit development stage. These sprays provide protection against disease and pests, and require careful monitoring and application to achieve optimal results. By following these guidelines, apple growers can ensure a healthy and abundant harvest of high-quality fruit.