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What are the key months for pest and disease control on plum trees?
Which pests and diseases should be controlled on plum trees in which months? Here is an introduction. For pest and disease control when growing plum trees, you can refer to the following: ① The main insect pests of Brown plum are aphids (mid-March to mid-April), scarab beetles (April to August), fruit borers (May to August), peach fruit moths (late May to mid-July), and fruit-piercing noctuid moths (before harvest). You can use Decis at 2000 times dilution, isocarbophos at 1000-2000 times dilution, and sumithion at 1000 times dilution for spraying, and use sugar-vinegar liquid for trapping and killing.
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What are the main pests and diseases of sweet corn? Learn it all in one article
What are the main pests and diseases of sweet corn? How to control them The main pests and diseases occurring in sweet corn are: corn borer, northern leaf blight and southern leaf blight, and sheath blight. I. Occurrence of pests and diseases Corn borer: moderate occurrence, locally on the heavy side. According to surveys, at maturity the average damage rate of corn plants was 10.06%, and in severely affected fields the average plant damage rate was 31.43%. At present, the larval stage in the field is mainly late-instar larvae, with an average of 1971 larvae per mu, reaching as high as 2500.
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What methods are there to increase potato yields?
What methods can increase potato yields? Please give guidance. To increase potato yields, the following methods can be used: Removing the tail buds. Experimental observation has shown that after tail buds of potatoes grow into plants, the yield is only 1/3 of that of plants grown from top buds or side buds. For this reason, when cutting seed potatoes, the tail buds should be discarded. High-ridge cultivation. High-ridge cultivation...
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What are the control methods for rose black spot disease?
Black spot disease mostly occurs in the hot and humid rainy season. Purple-brown round lesions appear on the upper surface of the leaves, with slightly ciliate edges, and many small black dots grow in the center. These small black dots are the acervuli of the pathogen. After the small black dots crack open, spores are released, causing the disease to spread, and it can also spread with rainwater. Black spot disease relies on con...
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Symptoms and Control Methods of Rose Little Leaf Disease
Symptoms Rose little leaf disease is a common physiological disease of roses in northern China. Little leaf disease occurs on young shoots and young leaves, and is more obvious when roses sprout in spring. Diseased branches sprout later, and after the leaves emerge, the leaves are narrow, small and slender, with leaf margins turning upward, hard and brittle texture, and a relatively pale yellow-green leaf color, with uneven color intensity...
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Symptom Identification and Control Methods for Rose Green Petal Disease
Symptoms: The main manifestation is narrow, thin petals that appear green and sepal-like or leaf-like, with the corolla turning green and flowers transforming into leaves; this is the typical symptom of rose green petal disease. Any plant affected by this disease, under the same cultivation and management conditions, will be more dwarfed than ordinary rose varieties, with profuse lateral branching, narrow and small leaves, and the petioles and stems rarely showing red coloration...
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What are effective ways to increase mung bean yields?
How do you protect mung beans from insect damage? Please explain that mung beans are nutritious, and eating them in summer relieves heat and quenches thirst, clears heat and detoxifies. Stored mung beans are easily eaten by insects, among which the mung bean weevil is the most serious pest. The following methods can effectively kill the borers. Chemical fumigation: when storing large quantities of mung beans in a warehouse, certain chemical...
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What are the control methods for mung bean leaf spot disease?
How should mung bean leaf spot disease be controlled? Please advise. The occurrence of mung bean leaf spot disease is closely related to temperature and humidity. Under conditions of 85% to 90% relative humidity, at temperatures of 25 to 28°C, the pathogen's conidia germinate most rapidly; when the temperature reaches 32°C, mycelial growth is most vigorous and the disease develops most rapidly...
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Pest and Disease Control Methods and Technical Key Points for Shiitake Mushroom Log Cultivation
There are many types of contaminant fungi parasitic on mushroom logs, commonly including Trichoderma, Schizophyllum commune, Lenzites betulina, and Panus lepideus. Among insect pests, there are slugs, snails, and millipedes that damage fresh mushrooms, and longhorn beetle larvae, bark beetles, and termites that damage mushroom logs. In terms of control, the policy of "prevention first, integrated control" should be implemented, streng...
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Control and Prevention Methods for Common Potato Diseases
How to control and prevent common potato diseases? Please give guidance. Common potato diseases include the following: A. Potato late blight. 1. Prevention: choose protective fungicides, such as Dashengfu (mancozeb suspension concentrate produced by Dow AgroSciences), Bibei (Bordeaux mixture). The key techniques for preventive fungicides...
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