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What are the control methods for cotton boll rot (boll)?
How to control cotton boll rot (boll)? Please introduce the methods. Cotton boll rot mostly occurs from mid to late August to early September. During this period, if there is cloudy and rainy weather with high humidity, and the cotton field is dense with poor ventilation and light penetration, various pathogens will rapidly breed and multiply. Common cotton boll rot diseases mainly include anthracnose, black boll disease, blight, red rot, pink rot...
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What are the control methods for black spot disease in roses?
How to control black spot disease in roses? Please help guide. Black spot disease is most prevalent in Beijing in summer and autumn. On the leaves of diseased rose plants, dark brown spots 3-4 mm in diameter appear, surrounded by yellow halos, and the leaves fall off. When the disease is severe, only the branches and infected young buds remain on the rose plant. 2. Early prevention...
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How to Control Weeds in Corn? A Detailed Guide to Practical Weed Control Methods
How to prevent weed damage in corn? Please provide prevention methods. Weed damage is one of the factors restricting high and stable corn yields. The annual area affected by weeds in corn fields in China exceeds 350 million mu-times, causing about 9.5 billion kg in corn losses each year. In response to the weed species present and their damage characteristics, an integrated control strategy should be adopted that takes agricultural control as the foundation, ...
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What are the control methods for cotton mirid bugs?
How do you control mirid bugs when growing cotton? Please explain the methods. Cotton mirid bugs can cause damage during both the seedling stage and the bud and boll stage of cotton. Right now, during the vigorous reproductive growth period of squaring, flowering and boll setting, is also the main damage period of mirid bugs, and they can cause cotton squares and bolls to drop. However, current genetically modified insect-resistant cotton has no resistance to piercing-sucking pests such as mirid bugs...
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Causes and Control Methods of Acute Wilting of Cotton After Rain
What causes acute wilting of cotton after rain and why should it be prevented? Please give an introduction to the causes of acute wilting in cotton: First, insufficient soil oxygen. After cotton fields are waterlogged, the roots receive insufficient oxygen, causing root suffocation and affecting the normal absorption function of the root system. The longer the suffocation lasts, the more severe the root damage. Second, improper fertilization. A one-time topdressing...
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Control methods for cotton boll rot (bolls) during the rainy season
How to prevent cotton boll rot (bolls) during the rainy season? Please provide an introduction. During the rainy season, the following methods can be used to prevent cotton boll rot (bolls): 1. Scientific fertilization: Most of the cotton currently cultivated is insect-resistant cotton, which generally requires large amounts of base fertilizer and bud fertilizer, and no flower and boll fertilizer, to prevent excessive growth and increased shading. Nitrogen should be controlled, phosphorus increased, and...
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What are the control methods for the white peach scale (Pseudaulacaspis pentagona) on cherry blossoms?
How do you control the white peach scale on cherry blossoms? Please explain the methods. The white peach scale on cherry blossoms is mainly found in cherry cultivation areas and occurs commonly. Due to the currently suitable climate and high field humidity, it has become quite severe in some fields. The damage has already caused leaves to basically fall off, and the pest population is extremely dense, appearing pure white from near or far. It is estimated...
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What are the control methods for cherry blossom crown gall disease?
How do you control cherry blossom crown gall disease? Here are the methods. The gorgeous cherry blossom is deeply loved by people, but it is easily infected by a fatal crown gall disease. This disease mainly occurs on the roots and on the trunk and lateral branches of the aboveground part of the cherry blossom. In the early stage of the disease, the root crown swells into spherical or hemispherical tumor-like growths; young galls are white, with a soft texture...
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What to do about gummosis on navel orange trees? Analysis of control methods
What to do about gummosis on navel orange trees? What causes gummosis on navel orange trees? Please advise. After navel orange trees enter June, temperatures rise, rainfall is plentiful, and with high temperature and high humidity, various pests and diseases begin to occur in large numbers. Gummosis is a fungal disease caused by Phytophthora, mainly damaging the trunk, followed by large branches, weakening the tree...
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What are the control methods for grape anthracnose?
What harm does anthracnose do to grapes? How do you control grape anthracnose? We also ask netizens to help introduce it. Zhongdi Network has compiled the harm, causes and control methods of grape anthracnose, listed below for your reference. The harm of anthracnose to grapes: anthracnose mainly damages the fruit, while leaves, new...
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