Autumn is a crucial time for fruit tree care, yet many growers mistakenly believe that heavy pruning should be avoided after harvest. In reality, this is a misunderstanding. During autumn, favorable light and temperature conditions promote photosynthesis in fruit trees. By implementing techniques such as shortening branches, thinning, retracting, bending, and "opening the skylight," you can improve air circulation and light penetration, which is essential for flower bud development and nutrient accumulation.
Another common mistake is not applying basal fertilizer at the right time. After harvesting early varieties, it's important to apply high-quality organic fertilizers—such as well-rotted manure, compost, and crop straw mixed with compound fertilizers—as soon as possible. Combining this with deep tilling and timely watering ensures the fertilizer is effectively utilized. At this stage, the temperature and soil moisture are ideal for root healing, nutrient absorption, and water uptake. Missing this window can lead to wasted resources like sunlight, heat, water, and nutrients.
Many orchard owners fear that root health is compromised by normal growth, but the key is ensuring the root system has a healthy environment. Loose, well-aerated soil with proper moisture and nutrients allows trees to thrive naturally. Unfortunately, many orchards suffer from compacted soil, especially in clay-heavy areas, where excessive chemical fertilization worsens the problem. Some growers avoid soil loosening out of fear, leading to increasingly hardened soil over time.
After fruit harvest, some people think there's no need for spraying. However, this is incorrect. Autumn is an important time for disease and pest prevention. The tree enters a natural rest period, often referred to as "breaking the tree." Spraying during this time helps protect the leaves, extend their functional period, and enhance photosynthesis, leading to better nutrient storage and reduced disease sources. Key targets include pear black spot, apple brown spot, leaf roller moths, and webworms.
Finally, many neglect branch orientation and top-opening angles. Throughout the growing season, as fruits develop, the tree’s load increases, and adjusting the angles of main and side branches improves light and air circulation. From fruit ripening to harvest, the tree’s angle is at its best. After harvest, there's a stable period where adjustments can be made. If the angle doesn't recover naturally, techniques like pulling, bracing, or supporting the branches can help maintain optimal structure for future growth.
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