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Spring Corn Aphid Control Methods and Key Points for Pesticide Application
The spring corn aphid belongs to the order Homoptera, family Aphididae, and mainly damages crops such as corn, sorghum, wheat, and foxtail millet, with adults and nymphs piercing and sucking plant sap. During the seedling stage, aphids gather on the undersides of leaves and in the heart leaves, causing damage. In mild cases, corn growth is poor; in severe cases, plant growth stagnates, and even seedlings die. In addition, it can transmit corn dwarf mosaic virus disease...
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What are the methods for controlling mango pests and diseases?
How should mango pests and diseases be controlled? Which methods are effective? Integrated control of mango pests and diseases implements the plant protection policy of "prevention first, integrated control", based on improving the orchard ecological environment and strengthening cultivation management, comprehensively applying various control measures, giving priority to agricultural measures, biological control and physical control...
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What are the control methods for white rust in water spinach?
How do you control white rust in water spinach? Please advise. First, carry out a 2- to 3-year crop rotation with other vegetable varieties. Second, before sowing, treat the seed at a ratio of 300 g of 35% metalaxyl per 100 kg of seed for sterilization; third, in the early stage of the disease, use 50% copper metalaxyl wettable powder at 6000 to 7000 times dilution, or 72.2% propamocarb aqueous solution...
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What are the control methods for white rust in water spinach?
How do you control white rust in water spinach? Please advise. 1. Implement a 2- to 3-year crop rotation with other vegetable varieties. 2. Before sowing, dress the seed for sterilization at a ratio of 300 g of 35% metalaxyl per 100 kg of seed; 3. In the early stage of the disease, spray with 50% copper metalaxyl wettable powder at 6000 to 7000 times dilution, or with 72.2% propamocarb aqueous solution at 8...
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What are the control methods for white rust in water spinach?
How should water spinach be cultivated? Please advise. 1. Variety selection. Suitable varieties for planting include Daji Huang, Dagu Qing, Jian Ye, Si Yong, Daji Qing, and others. 2. Cultivation season. Greenhouse cultivation can basically achieve year-round production and year-round supply. 3. Land preparation and fertilization. Water spinach grows quickly...
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How to prevent and control wheat pests and diseases after spring? Practical tips are here
March 20 is "Spring Equinox," the day that falls exactly at the midpoint of the 90 days of spring, hence the name. There is a folk saying, "Spring Equinox and Autumn Equinox, day and night are equally divided." After the Spring Equinox, days grow longer and nights shorter, and temperatures gradually rise. "Spring Equinox" has an important influence on agricultural production activities. For the north, the Spring Equinox is the beginning of spring, ...
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What are the control methods for blueberry bud mites?
How much water does blueberry growth require? Please advise: adequate soil moisture is essential for blueberry growth, and insufficient water will severely affect tree growth and yield. From budbreak to leaf fall, the water required by blueberries is equivalent to an average weekly precipitation of 25mm, and from fruit set to harvest, 40mm. Sandy soil...
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How to prevent and control branched roots and cracked roots in white radish?
How to prevent and control branched roots and cracked roots in white radish? Please advise on the causes of branched roots and cracked roots in white radish and the prevention of deformed roots such as forked and crooked fleshy roots, as well as cracking of the fleshy root forming cracked roots, which are common phenomena in production and important problems affecting yield and quality. The radish fleshy root has lateral roots on both sides, and under...
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Key Techniques for Spring Control of Wheat Sharp Eyespot
Wheat sharp eyespot is a fungal disease mainly spread through the soil. With the improvement of yield levels, the promotion of high-yielding varieties, and wheat field management with heavy irrigation and fertilization, its damage has become increasingly serious. After wheat sowing, if the germ is infected by the pathogen during germination, the coleoptile turns brown, and in severe cases rots and dies; after the standing and jointing stages, the diseased plant rate rises significantly...
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Spring disease, pest and weed control in wheat enters a critical period
If disease centers are found in the field, spray promptly to control them. If the diseased leaf rate reaches 5% and the severity is below 10%, use 50 g of 15% triadimefon wettable powder per mu, or 40 mL of 20% triadimefon emulsifiable concentrate per mu, or 30 g of 25% triadimefon wettable powder per mu, or 15-30 g of 12.5% diniconazole wettable powder per mu, ...
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