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Spring Pest and Disease Control Methods for Protected Plum Trees
1. Mound soil at the base of the trunk. Before overwintering adults emerge from the soil (mid to late May), build a 10 cm thick mound of soil around the tree basin and tamp it down firmly so that emerging adults cannot come out of the soil. 2. Apply pesticide to the ground. Before overwintering adults emerge (after petal fall), spray the tree basin with 75% phoxim emulsifiable concentrate at 0.5 kg/mu, or 40...
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High-Efficiency Multiple Cropping Technique for Winter Lettuce and Early Spring Peppers in Greenhouses
1. Select good varieties: For greenhouse cultivation of early spring lettuce, it is advisable to choose early-maturing pointed-leaf varieties with strong cold resistance, such as Hefei pointed-leaf duck-egg lettuce and Beijing crucian carp lettuce. 2. Grow strong seedlings: Sow and raise seedlings in a greenhouse in mid-to-late January. Before sowing, first soak the seeds in clean water at 20°C for 3-4 hours, rub and wash them, then remove and drain the water, and put them into...
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Pest and Disease Control Methods for Pear Trees Before Bagging in Early Spring
The period before and after bud break in early spring is when diseases and pests begin their activity, and once the pear orchard is bagged, spraying becomes considerably more difficult. Therefore, pest and disease control before bagging is the key to pest and disease management in bagged pear orchards. During this period, the focus should be on strengthening control of the pear psylla (Psylla pyrisuga), pear aphid, and red spider mite, among others. (1) Strengthen soil, fertilizer, and water...
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Key Points and Technical Details for Spring Management of Pear Orchards
In mid-May, some fruit growers in Xinji, Shenzhou and other places found that after spraying pear trees with pesticides, the young fruit of some pear varieties developed black spots, affecting fruit quality. In order to investigate the causes of the black spots, on May 22, Ni Qunzhou of the Shijiazhuang Fruit Tree Research Institute of the Provincial Academy of Agriculture and Forestry Sciences, Liu Pingjun of the Jinzhou Forestry Bureau, and Xie Zhuang Technicians of Zhaoxian County...
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Pear Tree Early Spring Frost Damage Protection Methods and Technical Key Points
I. Frost Prevention 1. Spray salt water: Before the late frost arrives, spray the tree with 10-20% salt water. This can increase the concentration of cell sap in the tree, lower the freezing point, and also increase air humidity. When water condenses in the cold, it releases latent heat, thereby protecting against frost damage. 2. Spray hormones: In early spring, spray 0.1-0.2% maleic hydrazide solution to inhibit budding and delay flowering,...
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Detailed Explanation of Early Spring Management Techniques for Pear Trees
1. Dig planting holes or planting trenches. ① For pear orchards with colored varieties spaced more than 3 m apart, planting holes can be dug; centering on the planting hole, dig a circular or square planting pit 1 m deep and 1 m wide, placing the topsoil and subsoil separately on either side of the hole. ② For pear orchards with spacing below 2 m, planting trenches must be dug, with a trench depth of 1 m, ...
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How to manage spring tomatoes after transplanting? Practical methods are here
1. Timely intertillage. Intertillage should be carried out promptly after transplanting. Early and deep intertillage helps raise soil temperature and promotes rapid root development and recovery growth. It is even more important for early-maturing cultivation. Intertillage should be carried out 3-4 times in succession, with the depth becoming shallower each time. This promotes the growth of adventitious roots at the stem base and expands the root system. 2. Fertilizer and water management. Tomatoes...
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How to plant ginger in early warm spring? The four-improvement technique is key
In recent years, the outlook for earning foreign exchange through exporting high-quality ginger has been promising, but quality requirements have also become increasingly high. Our department guided 20 large-scale growers in promoting and applying the "four improvements" new technique, which made the ginger produced large and plump with shiny skin color, increased the average yield per mu by 64% compared with traditional planting, and achieved doubled income growth for ginger farmers. When spring warms and flowers bloom in March to April...
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What are the key points for cultivating winter melon in small arched tunnels in early spring?
Winter melon has a well-developed root system, luxuriant branches and leaves, and bears huge fruits; it is a high-yielding crop with strong adaptability. The entire growth period of winter melon is about 100-150 days, and its life is divided into 4 stages: from seed germination to the cotyledons flattening out and the first true leaf appearing is the germination stage; from the first true leaf emerging to the beginning of vine growth is the seedling stage; from the seedling...
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Key Technical Points for Spring Open-Field Cultivation of Ground-Trailing Winter Melon
Ground-trailing winter melon has the advantages of saving trellis materials, reducing labor for building trellises and tying vines, lower costs, being convenient for intercropping and relay cropping, and relatively extensive cultivation management. During spring open-field cultivation in the early spring low-temperature season, intercropping pak choi, small radish, garland chrysanthemum and other vegetables in the vine-running beds can improve land utilization and increase vegetable yield. Our local farmers...
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