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Characteristics and Control Methods of Garlic Gray Leaf Spot
(1) Symptom characteristics: It mainly affects the leaves. The lesions are long elliptical, initially light brown, later turning grayish white. On both sides of the leaves, the lesions produce fine grayish-black mold-like growth. In severe cases, the lesions merge, causing localized death of the leaves. The disease is severe in weather with warm days and cool nights, heavy fog, and heavy dew. (2) Control methods: ① Promptly remove damaged leaves...
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Comprehensive Control Methods and Key Technical Points for Loquat Gray Leaf Spot
Loquat gray leaf spot, also known as "ring spot." It is the most important disease of loquat. It attacks branches, leaves, flowers, and fruit. There are two types: acute and chronic: in the chronic type, leaf spots are initially light brown circular spots; later they join into irregular large spots, with small black dots scattered on them. On young shoots, the disease starts as small water-soaked brown...
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Fatsia japonica has many varied leaf shapes on its branched foliage. How should you fertilize and water it when planting in a courtyard?
Fatsia japonica is also known by the alias Jingangzuan. Because its branched foliage bears roughly eight leaves that look like eight corners, it got this name. Its plant form is relatively tall, so it is very suitable for courtyards or various large...
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Do succulent leaf cuttings now: a trick to make them root fast without rot
When propagating succulents from leaf cuttings, it is best to choose spring or autumn, and to select healthy, plump leaves. Simply place the succulent leaf with its back facing down on the soil. Keep it in a well-ventilated environment, and in about 1 to 2 weeks you will...
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What method should be used to treat sudden leaf drying in cowpeas
(1) Select good varieties and sow at the right time. The cowpea varieties that perform relatively well mainly include: Zhijiang 28-2, Zhangtang cowpea, and Hongzuiyan. For open-field direct sowing, sow in mid-to-late April; for seedling raising and transplanting, sow from late March to early April; for summer sowing, sow from late May to early June. (2) Land preparation, fertilization, and...
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How to prevent and control angular leaf spot of winter melon? First, recognize the disease symptoms
Symptoms: It mainly affects leaves, petioles, and fruit. It can be affected from the seedling stage to the mature plant stage. When true leaves are infected, bright green water-soaked spots appear first, gradually turning light brown; the lesions are restricted by leaf veins and become polygonal, yellow-brown, and when humidity is high, milky white cloudy water-drop-like bacterial ooze exudes from the underside of the leaves, and the diseased tissue is brittle and easily perforated. When stems and petioles are infected, ...
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How to manage large-leaf cilantro for high yields? Detailed technical points
Select improved varieties: Japanese large-leaf cilantro, Thai large-leaf cilantro, Beijing large-leaf cilantro. Sow at the right time. For greenhouse cultivation, sow in staggered succession throughout the year, and in summer cover briefly with a shade net. For open-field cultivation, start sowing in late April and harvest in late June. For sowing in May, sow sweet corn as double plants in advance on both sides of the bed at 1 m intervals...
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Early prevention and control of autumn tomato leaf spot disease works well
Leaf spot disease: In the early stage of the disease, spray with a 500-fold dilution of 70% mancozeb wettable powder, or a 500-fold dilution of 50% carbendazim wettable powder, once every 7 days, for 3~4 consecutive sprays.
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Early prevention and control of leaf mold in autumn tomatoes gives good results
Early blight: after the disease develops, concentric ring-patterned lesions appear on the leaf surface, dark brown and water-soaked. Before and after the disease appears, spray with a 500-fold dilution of 70% mancozeb wettable powder, or a 400-fold dilution of 75% chlorothalonil wettable powder, once every 7 days, for 3~4 consecutive sprays.
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How to control broadleaf weeds in potato fields
It is currently the season for harvesting no-till potatoes in Guangxi. At the no-till potato base in Baqiao Village, Shuangqiao Town, Wuming County, Guangxi, on-site yield measurement showed that the average yield of no-till potatoes reached 25 sha-kilograms per mu, more than 1.5 times the national average potato yield per mu. Renowned potato expert Sun Huisheng said that Guangxi's rice-straw-mulched no-till cultivation...
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