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What pesticides are used to control common diseases of greenhouse grapes
Pesticide control measures for various diseases of greenhouse grapes: Control method for grape downy mildew: clean up the orchard, spray 5 degrees Baume lime sulfur mixture before bud break, spray once every half month starting from the young fruit stage, and spray 40% metalaxyl 800-1000 times dilution when the disease occurs. Control method for grape white rot: clean the orchard, starting from June every...
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Key Technical Points for Controlling Diseases, Pests and Weeds in the Field After Rice Seedling Broadcasting
Southern rice black-streaked dwarf disease is a viral disease mainly transmitted by the white-backed planthopper. It mainly harms staple grain crops such as rice and corn. Once a crop is infected, the plant becomes stunted, tillering increases, and in the later growth stage the diseased rice cannot head or set grain, sometimes resulting in a complete loss of harvest, seriously threatening the safety of our county's grain production. In order to scientifically...
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How to prevent and control common rice pests and diseases? A detailed practical guide
Rice bacterial leaf blight is a bacterial disease of rice leaves. The pathogen is Xanthomonas oryzae pv. oryzae in the prokaryote kingdom. The bacterium invades through wounds and water pores in the roots, stems and leaves, and reproduces and causes damage in the vessels of the vascular bundles. Seedlings and tillering stages are the most susceptible. Seedling leaves mostly show leaf blight symptoms. In susceptible varieties...
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Green control methods for rice diseases, insect pests and weeds
Rice seedling rot refers to the death of rice seeds and seedlings during the seedling-bed stage (that is, seed rot, bud rot and seedling death), and can be divided into two major categories: physiological and infectious. Physiological seedling rot refers to that caused purely by adverse environmental conditions; infectious seedling rot mostly refers to adverse environmental conditions inducing weakly parasitic fungi such as Pythium, Achlya, Fusarium and Rhizoctonia...
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Early prevention and early treatment of wheat pests and diseases in spring is key
From the perspective of water conservation, it is recommended to water wheat twice in spring. For wheat fields that have normal growth after winter irrigation, if the soil moisture is good, the green-up water can be skipped. The first spring watering of wheat should be at the stem elongation to jointing stage (late March to early April), and the second spring watering at the heading to flowering stage (late April to early May). The specific watering time...
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Control methods for common pests and diseases of wheat in spring
Spring is a critical period for wheat growth and also a time when diseases and insect pests occur frequently. Therefore, spring management of wheat should pay attention to the prevention and control of pests and diseases. Below are several common wheat pests and diseases in spring and their control methods: Wheat rust and powdery mildew: in areas where the disease is severe and obvious disease centers have formed, spray pesticide promptly,...
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What are the common diseases of oilseed rape? Detailed explanation of control methods
Common diseases of oilseed rape and their control
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Detailed Explanation of Control Methods for the Three Major Diseases of Navel Orange
When navel orange was top-grafted onto mature Satsuma mandarin trees, the fruiting characteristics appeared normal in the first two years, but thereafter varietal degeneration symptoms appeared year by year: shorter shoots, smaller leaves, lighter leaf color, weaker tree vigor; lower fruiting rate, smaller fruit size, dull and lusterless peel, weaker flavor, and declining fruit quality. In production practice...
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How to comprehensively prevent and control cotton seedling diseases? Master these key points
There are many types of cotton seedling diseases, and they cause severe damage. Among them, the most common and most damaging are damping-off and anthracnose. The incidence rate is generally 20%-30%, and in severe cases reaches 50%-90%. Especially with low temperatures and continuous rain in early spring, cotton seedlings grow weakly and emerge slowly, making them highly susceptible to infection by pathogens, causing large numbers of rotten seeds, diseased seedlings...
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Countermeasures for preventing seedling diseases from pre-sowing to seedling stage in cotton
Cotton seedling diseases mainly include damping-off, anthracnose, Pythium blight, root rot and more than a dozen others, collectively known as cotton seedling diseases. In mild cases, growth is slow, plants wilt and develop late; in severe cases, there are gaps and broken rows in the field, with plants dying in patches, causing tremendous damage. After cotton seedlings become diseased, although a series of disease prevention and treatment measures have been taken, such as timely ventilation of plastic-film cotton, intertillage near the roots...
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