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How to prevent and control asparagus pests and diseases? A detailed explanation of practical technical points
Asparagus stem blight and brown spot are the main diseases harming asparagus, developing quickly and causing severe damage. At present, there is no specific cure. Practice has proven that adopting a comprehensive disease prevention strategy based mainly on agronomic measures, supplemented by chemical control, can achieve twice the result with half the effort. The specific methods are: 1. Pinch off the growing tips at the right time to prevent lodging. As...
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Detailed Explanation of the Harm and Control Methods of Asparagus Pests and Diseases
In recent years, the asparagus planting area has been continuously expanding, and the degree of damage from its diseases has also increased accordingly, causing considerable losses to the vast number of asparagus growers. The main asparagus diseases include: stem blight, root rot, brown spot, damping-off, and tip blight. The common diseases in the growth process of asparagus and their control measures are introduced as follows: 1. ...
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How to control the main diseases of rice in the middle and late stages? Here are the key control points
Damage symptoms: Symptoms appear in the late seedling stage and become obvious at the peak tillering stage. Diseased plants are stunted, with light green leaves; small yellowish-white spots appear on the leaves, round or oval, often forming lines; after booting, diseased plants are significantly stunted, with plant height less than one-half that of healthy plants. Leaves are short and thick, and the central leaf is yellowish-white, sometimes curved or twisted...
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How to prevent and control persimmon tree diseases? These two methods are very practical
The main pests and diseases that persimmon trees are prone to include: persimmon angular leaf spot, circular leaf spot, anthracnose, black spot, leaf blight, powdery mildew, Eumeta variegata, Japanese mealybug, tea tussock moth, Maladera ovata, red wax scale, Homona magnanima, and small black slug moth, etc. Control methods: (1) Remove diseased fallen leaves and burn them; at the early stage of the disease, spray Bordeaux mixture, zineb, carbendazim or any one of these fungicides several times; when powdery mildew is severe, spray triadimefon. (2) Use light traps to kill adult insects; during the larval or nymph stage, spray dichlorvos, trichlorfon, fenitrothion or any one of these insecticides.
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How to prevent pests and diseases in water spinach? Practical control measures shared
1. Preparing seedlings: After the mother stems of the planted water spinach form nodes, when the branches growing from the nodes reach 20 cm in length, cut off the seedlings with fibrous roots to use as planting material. 2. Cultivation method: Prepare braided straw ropes, wooden stakes and floats (the plastic foam ball-shaped floats used for the upper rope of fishing nets will do). When planting, place the seedlings at 15-20 cm...
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What are the control methods for peanut viral diseases?
Peanut disease is one of the major diseases of peanut, seriously affecting the yield and quality of peanut, and it is especially severe in the production areas of northern China. For peanut viral diseases, except for bud blight, which is mainly transmitted by thrips, other diseases such as mild mottle disease, yellow mosaic disease, and common mosaic disease are transmitted through seeds and aphids, and seed-borne infected tubers...
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How to prevent and control pests and diseases in early spring eggplant? Key technical points to master
For eggplant seedlings raised in early spring, the main focus is preventing and controlling soil-borne diseases: damping-off, rhizoctonia rot and sclerotinia rot. For seedbed soil disinfection, mix 50 kg of seedbed soil with 20 g of 68% Jinlei water-dispersible granules and 10 ml of 2.5% Shileshi suspension concentrate, sift the soil and mix well, then fill nutrient pots, or spread it over the seedling bed. During the seedling stage, spray 0.1%-0.2% monopotassium phosphate...
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Control Methods for Three Major Soybean Diseases
What does soybean dodder look like? What should you do if soybean dodder appears? Dodder, also called yellow silk vine or tangled silk vine, is a malignant weed. It harms many crops, can cause total loss of soybean yield, and occurs commonly in various regions. (1) Morphology: The stem of soybean dodder is yellow, orange-yellow, or yellow-green, smooth and hairless,...
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How to prevent diseases in yam during the hot and rainy period?
I. Planting and growth period: generally planted in February-March, and harvesting begins in September-December. II. Main cultivation techniques 1. Soil selection: sandy loam soil that is loose and deep, with a water source for irrigation, should be selected. 2. Preparation and treatment of seedlings (1) Planting with yam cuttings: at present, ...
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Detailed Guide to Identifying and Controlling Common Hawthorn Diseases
Common Hawthorn Diseases and Their Control
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