How to manage pear trees after harvest? These key points must be mastered
Autumn is the season when pear tree fruits ripen. Generally, September to October is the season for picking and harvesting pears, and in order to lay a solid foundation for a bumper harvest the following year, the key points of post-harvest management are extremely important. If management is not done properly, problems such as heavy branch growth, severe pests and diseases, and effects on flower bud differentiation can easily occur, with a very obvious impact on the next year's yield. So how should pear trees be managed after harvest? Let's take a look.
1. Pruning and clearing the orchard
After harvest, first clean up the remaining branches and fallen leaves, prune the remaining damaged and rotten fruit, cut off diseased branches and leaves, cut off the densely growing small branches with strong growth, and properly thin out the spacing between branches and leaves to ensure good ventilation and air flow. When the leaves have basically fallen, promptly remove the fallen leaves, remaining branches, and weeds, and bury them deep in a concentrated pile or burn them. This not only eliminates overwintering pests and diseases but also increases orchard fertility. In addition, when pruning, branches with borer holes or insect eggs, dead branches, dead buds, and mummified fruit can all be cut off together and burned in a concentrated pile.
2. Soil, fertilizer, and water management
After harvesting the pears, the soil should be deeply turned in a timely manner. There are many overwintering pathogens and pests in the soil; by deeply turning the soil during their dormant period and exposing them on the ground surface or turning them deep into the soil, they cannot emerge to cause harm. In addition, carry out shallow tillage and shallow turning of the soil within the drip line of the tree canopy in a targeted way. Soft, breathable soil is beneficial to fruit tree growth. After turning the soil, dig fertilizer trenches along the way and apply sufficient base fertilizer in the trenches to maintain ample fertility and provide nutrients for the plant to overwinter and for flower bud differentiation the following year. After fruit picking, it is also necessary to do a good job of drought resistance and waterlogging prevention. Water and moisture can be preserved by covering with dry grass, preventing drought and draining excess water.
3. Preventing diseases
After pear trees are harvested, a large number of mechanical wounds inevitably appear, and at this time pathogens have an opportunity to take advantage. Therefore, after picking, pests and diseases such as pear brown spot, gray spot, and rust are also very likely to occur. If not treated in time, they will cause physiological leaf drop and hinder the growth of the fruit trees. Therefore, after harvest, spray with 800—1000 times dilution of 0% thiophanate-methyl wettable powder or 600 times dilution of 7% mancozeb wettable powder, which can effectively prevent and control pests and diseases. It can also be combined with foliar fertilizer by spraying a mixed solution of 0.3% urea and 0.3% potassium dihydrogen phosphate, which can help branches and leaves return to normal growth.
The above is an introduction to the key points of managing pear trees after harvest. I hope it can help you. To learn more related knowledge, please keep following us.