August Apple Garden Drying
Oil Emulsion Gauze Dressing,Oil Emulsion Bandage,Oil Emulsion Gauze,Oil Emulsion Non Adherent Gauze Roosin Medical Co.,Ltd , https://www.roosinmedical.com
In August, apple trees enter the peak of their autumn growth phase. The focus of management during this period should be on enhancing nutrient supply, managing the growth of new shoots, implementing pruning techniques, ensuring healthy leaf development, accelerating fruit enlargement, and promoting flower bud fullness. Additionally, it's crucial to prevent premature fruit drop and strengthen pest control to ensure a bountiful harvest this season. Below are the detailed technical measures.
1. **Enhance Nutrient Supply**
For apple trees showing signs of yellowing leaves, uneven coloration, or edge burn, it’s important to boost their nutrition. Apply a foliar spray using a 300-fold dilution of a boron-molybdenum-magnesium-zinc-calcium amino acid fertilizer or a 600-fold dilution of potassium fulvate. Spray every 10–15 days, and it can be mixed with pesticides if needed. For top-dressing, apply high-potassium, low-nitrogen fertilizers (1.5–2 kg per mature tree) to those with heavy fruit loads to support rapid fruit growth. Additionally, for weak or overbearing trees, applying a trunk fertilizer with a 2–3 times diluted amino acid solution can help improve overall health.
2. **Regulate Tree Growth**
For trees that are not vigorous or have poor fruiting, spray PBOG or a PBO control agent at 200 times dilution, or paclobutrazol at 150 times dilution in early August. Focus the spray on new shoots to control their elongation and encourage fruit development and coloring. It is best to spray after 4 PM for better absorption.
3. **Summer and Autumn Pruning**
This is the time to remove leggy branches and cut back long shoots near the pruning cuts. Also, eliminate or shorten fruitless branches that block light and air circulation, especially in the lower parts of the canopy where they are dense. Proper pruning helps maintain tree structure and improves fruit quality.
4. **Promote Ripening Before Harvest**
For varieties like Beidou, Hongxing, Chaohong, Shouhong, and the Marshal series, which tend to drop fruit prematurely, spray naphthalene acetic acid at 40 ppm (20% naphthaleneacetic acid at 5g per 30–40 liters of water) 1–2 times in August. Focus on the fruit stems to reduce shaking and promote even coloring.
5. **Strengthen Pest Control**
Focus on controlling early defoliation. In case of heavy rain or bacterial infections, use quick-acting pesticides such as Type 9281. Once sprayed, allow the solution to dry on the leaves for maximum effectiveness. These products typically last about 7 days. After sunny weather, switch to longer-lasting, eco-friendly options like bacteriochlorin, polyoxin, or other non-polluting pesticides.
6. **Flood Control and Weeding**
In rainy seasons, drain excess water promptly after rainfall. In black clay orchards, plan the soil carefully to avoid root damage. Regular weeding is essential; cut down weeds or use herbicides like 30 times diluted glyphosate (for perennial weeds) combined with 1,000 times diluted herbicide to enhance effectiveness. Alternatively, use 300 times diluted detergent or 300 grams of a trace-free herbicide at 1,000 times dilution for fast and effective weed control.