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How to Control Sorghum Pests? A Detailed Guide to Practical Methods
How to control sorghum pests? Here is a guide: The main sorghum pests are aphids, tobacco cutworms (Spodoptera litura), stem borers, and scarab beetles. Aphids and scarab beetles occur at the seedling stage; tobacco cutworms and stem borers cause damage at the heading stage and dough stage, and can be controlled with pesticides such as chlorpyrifos, BT, and Lvjing. Sorghum is extremely sensitive to organophosphorus pesticides such as trichlorfon, dichlorvos, fenitrothion...
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Main Pests and Diseases in Sorghum Cultivation and Their Control Methods
Which pests and diseases should be mainly controlled when growing sorghum? Please provide guidance. The following pests and diseases should be controlled when growing sorghum: 1. Sorghum smut. Sorghum smut is a common disease on sorghum in Liaoning. It includes head smut, loose smut and covered smut. Symptom identification: head smut shows obvious symptoms after heading. Diseased plants are generally shorter. Before heading, the lower part of the diseased head swells, the husk leaves are tight, and there is a white club-shaped mass inside. After heading, a large amount of black powder is scattered.
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How to prevent sweet pepper flower drop? Detailed summer control methods
How to prevent sweet pepper flower drop in summer? Please explain the methods. Sweet pepper flower drop in summer is mainly caused by the following factors: 1. Temperature reasons. If the temperature is too high (above 35°C), incomplete flower organ development or dried-up stigmas can lead to poor pollination and fertilization, causing flower and fruit drop. In addition, high night temperatures in summer make plants prone to excessive vegetative growth,...
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Symptom Identification and Control Methods of Banana Anthracnose
What is banana anthracnose and how to control it? Please give an introduction. Anthracnose is a common disease in banana-producing areas and also the most important post-harvest disease in banana-producing areas worldwide. On yellow-ripe fruit peel, plum-blossom-spot-like lesions appear, and the lesions rapidly expand into dark brown patches, causing the whole fruit to turn black and rot. When the fruit stalk is affected, it causes the banana fingers to drop...
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What are the control methods for banana bunchy top disease?
What control methods are there for banana bunchy top disease? Please describe the methods. Banana bunchy top disease can be controlled by referring to the following methods: 1. Establish disease-free nurseries and cultivate disease-free seedlings. The nursery should be set up in a place with no banana plantations within a 2000-3000 m radius, to prevent aphids from entering and transmitting the disease; insect-proof nets can be added over the seedling shed. ...
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Symptom Identification and Control Methods of Poplar Canker
Distribution and Damage Poplar canker, also known as poplar rot disease. It occurs in all poplar cultivation areas in China, but is mainly distributed in the Northeast, Northwest, North China and other regions. It is a common and frequently occurring disease of poplars in parks, green spaces, street trees and nurseries, often causing mass death of street trees, and newly transplanted poplars are especially severely affected. Symptoms...
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Identification and Control Methods of Poplar Black Spot Disease Explained in Detail
Poplar black spot disease, also known as poplar brown spot disease, is caused by a pathogen that can infect many species of poplar. Seedlings, young trees and mature trees can all be affected. When the disease is severe, it affects the normal growth of the trees and causes economic losses. Symptoms: it generally occurs on young leaves, shoot tips and fruit clusters, spreading from top to bottom, mainly damaging leaves. When the disease starts...
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Detailed Explanation of Prevention and Control Methods and Occurrence Patterns of Poplar Black Spot Disease
Poplar black spot disease, also known as poplar brown spot disease, generally occurs on young leaves, tender shoots and fruit clusters, spreading from top to bottom, mainly damaging leaves. In the early stage of the disease, needle-like sunken shiny small spots first appear on the underside of leaves, then the lesions expand to about 1 mm, black, slightly raised, and brown spots also appear on the upper side of the leaves, 5-6 days...
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What are the control methods for poplar canker?
Canker, also known as rot disease, is mainly distributed in northeast, northwest, north China and other regions of our country. It mainly damages the branches and trunks of trees, is extremely contagious, and once the disease becomes epidemic, it often causes large-scale death of forest trees, resulting in great losses. In recent years, due to large-scale planting of poplars, this disease has occurred from time to time in various places, and planting a single poplar variety...
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What to Do When Poplar Trees Get Canker Disease? A Detailed Guide to Prevention and Control Methods
Poplar is the general term for deciduous trees of the genus Populus in the willow family (Salicaceae). The genus contains more than 100 species, mainly distributed in the temperate and cold zones of Europe, Asia, and North America, as well as the Mediterranean coastal countries and the Middle East. China has more than 50 species. The wood is used for civil construction materials, furniture production, matchsticks, sawn timber, papermaking, and is also used for...
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