After fruit development in apple plants, around 20 days after the walnut stage, an important stage of crop maintenance comes into play. This is the time when the apple plant requires a spray to help protect the fruit from pests and diseases.
The spray after fruit development serves multiple purposes, like controlling the apple pests, diseases, and reducing fungal growth that may damage the fruit. Some pests that attack fruits at this stage include mites, aphids, and leafhoppers. The spray also contains fungicides that help prevent common fungal diseases like scab, rust, and powdery mildew.
Before applying any spray, it is important to assess the current condition of the orchard. Check the plant for any signs of pests and diseases and adjust the spray application accordingly. Also, always follow the instructions on the label for the proper amount, timing, and method of application.
One effective spray after fruit development is the use of horticultural oil. Horticultural oil is a type of pesticide that controls pests and diseases by suffocating them. The oil also helps to smother overwintering insects before they can lay eggs on the plant. Apply the horticultural oil after the buds start growing, but before they open.
Another effective spray is the use of a copper fungicide. This fungicide is best applied during the dormant season when the temperatures are below 60°F (15°C). It helps to prevent apple scab and other fungal diseases from spreading during the growing season.
In conclusion, the spray after fruit development is a crucial step in maintaining healthy apple plant growth and ensuring a fruitful harvest. Be sure to properly assess the plant’s condition before choosing the correct spray application, and always follow the instructions on the label for the best results. With the right care and maintenance, your apple plant can give you a bountiful yield year after year.