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Detailed Explanation of Key Points on Aloe Pests and Control Techniques
The main pests of aloe are red spider mites, aphids, cotton bollworms, and scale insects. These pests mainly damage aloe seedlings or tender leaves, and their occurrence is not heavy. 1. Red spider mites, aphids. They mainly occur in spring, summer, and autumn. (1) Physical control. When the number of pests is not large, they can be washed off with a spray of clean water, or killed by pinching them with your hands...
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How to prevent and control powdery mildew in chrysanthemums
From late August to October, powdery mildew is common on chrysanthemums. It can cause poor plant growth, dead leaves, and even failure to bloom, so timely prevention and control are needed. In cultivation, take care to prune overly dense and withered yellow branches and leaves, pull out diseased plants, clear away diseased leaves and fallen leaves, and burn them in a centralized way or bury them deeply. Planting should not be too dense; control soil moisture and increase...
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How to prevent and control chrysanthemum white rust? A detailed guide to practical control techniques
Chrysanthemums are loved for their elegant, bright colors and rich fragrance. Growing flowers can cultivate people's character, enrich cultural life, and improve physical and mental health. At the same time, some varieties of chrysanthemums grown can also be eaten or used as medicine, achieving two benefits at once. However, in the process of cultivating and propagating chrysanthemums, they often suffer from a variety of diseases...
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What are the control methods for chrysanthemum Fusarium wilt?
Fusarium wilt is one of the important diseases of chrysanthemums. It occurs in many regions of China. Although the incidence of this disease is not high, it is extremely harmful. Once a plant is infected, if control measures are not taken promptly, the plant will quickly wither and die. Chrysanthemum Fusarium wilt is a fungal disease. The pathogen is Fusarium oxysporum f. sp. chrysanthemi, which is a...
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What are the methods for preventing and controlling pests and diseases in tomato seeds
How to prevent and control pests and diseases in tomato seeds? Please explain. The general disease symptoms of tomato seeds are as follows: (1) Tomato fruit blistering disease, a physiological disease, also called rib rot or strip rot or band rot, mainly harms the fruit. Below is an introduction for everyone. There are commonly two types. One is the browning type: cut open the diseased fruit, ...
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What methods can prevent and control autumn tomato fruit rot
What methods can prevent autumn tomato fruit rot? Please advise on fruit rot caused by cottony leak. First, smooth light brown spots appear on the top or shoulder of the fruit, sometimes with a small amount of white mold, then gradually form concentric ring patterns, gradually turning dark brown, and the flesh under the skin also turns brown; in the later stage the entire fruit rots and drops off. Prevention and control...
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Causes and Control Methods of Peanut Sheath Blight
How does peanut sheath blight occur? How to control it? (1) Disease pattern: Peanut sheath blight is a disease caused by a basidiomycete fungus. Young hyphae are colorless, turning yellow-brown when mature; they are branched, with a distinct constriction at the branch point and a septum not far from the branch. Hyphae on the surface of diseased tissue can form sclerotia, which have a rough surface...
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What are the control methods for peanut violet root rot?
How does peanut leaf spot occur? Both peanut black spot and brown spot are diseases caused by fungi. The sexual stage of the peanut black spot pathogen is Berkeley's Mycosphaerella; the stroma is hemispherical, brown to black, embedded beneath the host epidermis, with conidiophores densely clustered on the stroma; conidia are borne terminally, the conidia are olive...
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What are the control methods for peanut stem rot?
How to control peanut stem rot? (1) Keep good seed: choose summer peanuts for seed saving. Choose a sunny day to harvest early, sun-dry, and store in a dry place; before sowing, select healthy, large seeds. (2) Seed disinfection: 50% carbendazim wettable powder at 0.3% of the seed rate, 25% carbendazim wettable powder at 0.5% of the seed rate, mix with 5-10 times fine dry soil, and mix in layers onto peanut seeds soaked for 12 hours, or add 30 kg of water, soak 50 kg of seeds for 24 hours, stirring 2-3 times in between.
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How to prevent and control peanut bacterial wilt? These methods you need to master
How to prevent and control peanut bacterial wilt? (1) Crop rotation: rotating between flooded and dry land for 1-2 years shows obvious results. On dry land, rotate with cereal crops; for lightly infected land 1-3 years, for heavily infected land 4-5 years. (2) Select disease-resistant varieties: currently promoted resistant varieties include Xiekangqing, Ehua No. 5, Zhonghua No. 2, You 92, Guiyou 28...
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