The area dedicated to early-ripening pears has been gradually increasing over the years. However, many growers have faced challenges due to a lack of scientific management practices. As a result, pear trees are showing signs of premature aging, leading to declining yields and lower fruit quality, which in turn affects economic returns. Additionally, unpredictable weather patterns—such as warmer winters, hotter early spring, and fluctuating temperatures in late spring—have created favorable conditions for pests and diseases. This has led to earlier and more frequent outbreaks, making it essential for pear growers to implement effective management strategies tailored to their specific conditions.
First, land and fertilizer management plays a crucial role in maintaining healthy orchards. For orchards that were not tilled during the previous autumn or winter, shallow plowing combined with weeding should be carried out. In suitable areas, intercropping with green mung beans or Indian mung beans can improve soil fertility and suppress weeds. Fertilization should be adjusted based on tree vigor and soil conditions. Applying 0.2–0.3 kg of sulfur potassium per tree helps support the growth of young fruits. In poorly drained plots, deep plowing and proper drainage channel maintenance are necessary to reduce humidity and minimize disease risks.
Second, pest control is vital this season. Observations from Linhai and Xianju indicate that pests such as pear stem bees, aphids, leaf rollers, and others have entered their active period earlier than usual—about 7–10 days ahead of schedule. Growers must monitor these pests closely and apply targeted sprays using appropriate insecticides like Acanthopanax, Dichlorvos, Surprise 1, Killing, Zhengrui, Abamectin, and Methotrexate. It’s important to follow instructions carefully and avoid excessive use, as this can lead to resistance and damage to the trees.
Alongside pest control, fungicides should be used to manage diseases like rust, rot, and leaf spot. Commonly used fungicides include Kaisheng, Xiansheng, Dasheng M-45, benomyl, carbendazim, and thiophanate-methyl. For orchards severely affected by fire blight, an additional spray in late April or early May is recommended. In cases of bee damage, affected shoots should be cut and destroyed promptly to prevent further harm in the following season.
During pesticide application, it's also beneficial to supplement with foliar fertilizers to address any nutrient deficiencies. Products like Tsui Kang Hua Guo Ling, Cosan, potassium dihydrogen phosphate, and borax can help enhance tree health and fruit development.
Third, fruit thinning is essential to optimize yield and quality. Due to reduced flowering this year caused by cold weather, most orchards have fewer blossoms compared to previous seasons. Therefore, growers should consider increasing the number of retained fruits to boost economic returns. The first thinning should take place in mid-April when fruits become visible, and the final thinning should be completed by late April or early May. This helps reduce competition for nutrients, supports flower bud differentiation, and prevents issues like small fruit size and alternate bearing.
By implementing these three key management strategies—land and fertilizer care, effective pest and disease control, and timely fruit thinning—growers can significantly improve the health, productivity, and profitability of their pear orchards.
Small 2D LiDAR Sensor
IT02S, is JRT new product in the early 2019, which is a single-point LiDAR sensor, also called tof distance sensor. With a micro size of 46x17x7mm, customers can widely use in many Laser Measurement Solutions. The lidar distance sensor can measure 12m short-range with high frequency up to 100hz. It's great for Unmanned Aerial Systems. If you need us send you data sheet and spec for this products, offering sample as well, pls tell us, thank you.
IT02S Mini Tof Sensor Module Diagram
Parameters of IT02S:
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Accuracy
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+/-8cm@ 0.1~3.5m
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Measuring Unit
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cm
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Measuring Range (without Reflection)
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0.1-12m
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Measuring Time
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0.1~3 seconds
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Measuring Frequency
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100 Hz
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Laser Class
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Class II
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Laser Type
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650nm, <1mw, red
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Weight
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About 5g
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Voltage
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DC2.5V~+3.5V
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Serial Level
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TTL 3.3V
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Size
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46*17*7mm
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Operating Temperature
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0-40 ℃ (32-104 ℉ )
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Storage Temperature
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-25~60 ℃ (-13~140 ℉)
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IT02S – the High performance-price ratio measurement solution
* low power consumption of single transmit and single receive
* small size: 46*17*7mm
* low cost
* proffessional techinical support
2D Laser Distance Sensor,2D Lidar Sensors,Tof Lidar Distance Sensor, Flight Distance Sensor
Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com