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Identification and Control Methods of Soybean Cyst Nematode Disease
Soybean cyst nematode disease, also called "huolongyangzi" disease, is caused by nematodes parasitizing the roots of soybean. Diseased plants have poorly developed root systems, with a marked reduction in lateral roots, slow growth, stunted plants, yellowing stems and leaves, small pods with shriveled seeds, or no seed set, and even death of the entire plant. When diseased plants are pulled up and examined, many needle...
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Soybean Disease Control Measures and Technical Key Points
Soybean Sclerotinia Stem Rot Soybean sclerotinia stem rot mainly infects the stems, and symptoms usually begin to appear in late July. In the early stage of infection, brown lesions appear on the stems, after which white cottony mycelium and white granules develop on the lesions, later turning into black granules (sclerotia). When the diseased plant stem is cut lengthwise, black cylindrical sclerotia resembling mouse droppings can be seen. After the diseased plant dies...
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Key Points of Pest and Disease Control Techniques for Spring-Planted Purple Cabbage
Pest and disease control: As long as management is proper, purple cabbage generally has few diseases, so it is easy to produce pollution-free products that can be eaten raw. Purple cabbage may only suffer from seedling-stage diseases such as damping-off and downy mildew when humidity is high during the seedling stage, which can be controlled with pesticides such as Yunsheng, Dasheng, carbendazim, Xinluling, and Anke. Pests...
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What are the control methods for the three major soybean diseases?
Soybean root rot: This disease can occur and cause damage throughout the entire growth period of soybean, with yield reductions ranging from 25% to 75% or more. The protein content of infected seeds is significantly reduced. The main symptoms are dark brown lesions appearing at the base of the stem and spreading upward to varying degrees to the lower lateral branches, causing the pith of the diseased stem to turn brown, the base of the petiole to constrict...
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What are the pollution-free soybean diseases and their control methods?
The soybean aphid is one of the major pests of soybean, with adults and nymphs piercing and sucking sap on the top leaves, tender leaves and tender stems of the soybean plant. In severe cases they cover the stems and leaves, and can also attack tender pods, causing stunted plants, reduced fruiting branches and pod numbers, and lower 1000-grain weight; when severe at the seedling stage, the entire plant can die, and in outbreak years if not controlled in time...
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Control Methods for Major Diseases and Pests of Melons
Melon, also known as oriental melon, is one of the high-grade fruits that people love. It belongs to the Cucurbitaceae family, Cucumis genus, melon species, and is an annual herbaceous plant. I. Variety Types and Selection of Improved Varieties Melons are generally divided into two types: thin-skinned melons and thick-skinned melons. Thin-skinned melons, also known as Chinese melons, have thin skin, crisp flesh, and small fruits with a single fruit...
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Pollution-free Disease and Pest Control Techniques for Muskmelon
The main pests harming melons include root maggots, mole crickets, cutworms, white grubs, leafminers, pumpkin beetles, aphids, and red spider mites, among others. (1) Root maggot: also called root maggot or melon maggot. It is the larva of the seed corn maggot. The body is about 5 mm long and maggot-shaped, damaging the young roots, young shoots, and tender stems of melon seedlings. Common control methods are as follows: ...
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How to prevent and control pests, diseases and weeds during the seedling stage of cabbage-family vegetables
Cabbage clubroot mainly harms cruciferous vegetables. After the disease occurs, the roots swell and become tumor-like, hence the name clubroot disease. Generally, after the main root is infected, it becomes lump-shaped, and after the fine roots, branch roots, lateral roots and fibrous roots are infected, they are mostly locally swollen and deformed. Simple diagnosis: clubroot disease and root-knot nematode disease have similar field symptoms. When distinguishing them, you can dissect...
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What are the control methods for soybean mosaic virus disease?
Suihua City in Heilongjiang Province is a major soybean-producing area, with a perennial soybean planting area of nearly 300,000 hectares. In recent years, the occurrence of soybean mosaic virus disease has shown a trend of worsening year by year, occurring in most fields, with the disease incidence rate in the field generally around 4.8%, and reaching over 20% in severe cases; the rate of brown (black) mottled seeds in soybean grain is over 10%,...
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The commonly used pesticide for mango pest and disease control is Supracide.
Physical and chemical properties: appearance is a dark yellow liquid, density 1.04-1.08 kg/L, storage stability period 2 years, cannot be mixed with alkaline pesticides. Toxicity: a highly toxic insecticide, toxic to mammals, birds and bees; the safety regulations for the use of highly toxic pesticides should be observed when applying. Mode of action: Supracide, also called methidathion, is a...
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