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What are the control methods for Ichthyobodo? A must-read for fish farmers
① Copper sulfate: before stocking fry, soak them in 8 g of copper sulfate per cubic meter of water for 15-30 minutes. ② Copper-iron mixture: during the disease season, hang a bag of copper sulfate and ferrous sulfate (5:2) once every half month. ③ Spray the whole pond with a mixture of copper sulfate and ferrous sulfate (5:2), using 0.7 g per cubic meter of water. ④ For each mu at 1 m water depth, spray the whole pond with 15-20 g of avermectin. ⑤ Soak diseased fish in 2% salt water or 0.05% formalin for more than 15 minutes. ⑥ During the disease season, use 15 kg of chinaberry leaves per 500 cubic meters of water
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What are the prevention and control methods for fish autumn plague?
In autumn, fish are highly prone to acute diseases with extremely high mortality rates, such as emaciation disease, small claw worm, gill rot disease, and water mold, commonly known as "autumn plague." To prevent and control outbreaks of "autumn plague" in fish, seven key points should be well managed. 1. Improve the ecological environment. Pay attention to ecological prevention and control, appropriately feed full-price concentrated feed, tender grass, etc., to meet the nutritional needs of fish growth as much as possible, so as to improve their immunity. 2. Actively add fresh water. Adding fresh water can bring in oxygen and various nutrient elements, and can also dilute organic matter in the pond water and
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What are the prevention and control methods for bighead carp emaciation disease
1. Cause: Due to excessive stocking density and insufficient feed, some fry or fingerlings cannot obtain enough feed and become emaciated and die. 2. Symptoms: The diseased fish has a shrunken, withered body, a large head and a small tail, a back like a knife blade, pale gill filaments, severe anemia, sluggish activity, and a darkened body color, dying not long after. 3. Prevalence: This disease mostly occurs in the later stage of the fingerling rearing phase. Fingerlings in overwintering ponds and overstocked adult fish are affected due to improper stocking density and mixing ratios and insufficient feeding, especially bighead carp.
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Occurrence and Integrated Control Methods of the Eggplant Yellow Spot Borer
Since the 1990s, eggplant has developed rapidly in Jingning County, and the county's planting area has now exceeded 1,300 hectares, with an annual total output of more than 51,000 t. At the same time, the eggplant yellow spot borer has shown an increasing trend of damage in the county, affecting the development of eggplant production. For this reason, the author conducted a preliminary study on the occurrence pattern and integrated control techniques of this pest. 1 Occurrence and damage characteristics The eggplant yellow spot borer, also known as the eggplant borer, belongs to the order Lepidoptera, family Pyralidae. Its larvae bore into and damage eggplant flower buds, stamens, ovaries, tender stems, tender shoots and
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Pre-planting to planting-period control methods for chili peppers
1. Adjust the planting structure and carry out rational crop rotation. Avoid continuous cropping with cucurbits and solanaceous vegetables; a rotation of more than three years can be carried out with cruciferous cabbage and Chinese cabbage, and with liliaceous Welsh onion, garlic, etc. 2. Choose disease-resistant varieties. Such as Haijiao No. 2, Zhongjiao No. 4, Zhongjiao No. 5, Zhongjiao No. 6, Zhongjiao No. 7, Zhongjiao No. 8, Tianjiao No. 3, Tianjiao No. 4, Tianjiao No. 6, Zhijiao No. 1, Zhijiao No. 9, Fengjiao No. 1, Dujiao No. 1, Jinjiao No. 8, Zaoshu No. 1, etc. 3. Seedbed disinfection. You can use 50% carbendazim at 1:
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How to control the ginger skipper? These methods are simple and effective
1. Morphological characteristics Adult: body and wings dark brown, forewings with 5 grayish-white spots, the spot located below the discal cell is larger. The center of the hindwing has one large white spot. Egg hemispherical, flat at the top, with the rim in contact with the leaf surface forming a brim shape, slightly wrinkled, with more than 50 raised fine striations on the side. Larva grass-green, after the 3rd instar two nearly crescent-shaped yellow spots appear on both sides of the dorsal line of the sixth abdominal segment, spiracles white. Pupa elongated spindle-shaped, yellow-green, body covered with white waxy powder. 2. Life habits and occurrence pattern The ginger skipper occurs
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What are the control methods for bacterial shot hole disease in peach trees?
(1) Damage symptoms. Peach bacterial shot hole disease mainly damages peach leaves, and also infects twigs and fruit. After leaves are affected, nearly round or irregular brown lesions appear, and the lesions gradually dry up and fall off to form shot holes, hence the name shot hole disease. In severe cases, several lesions often join together to form large scorched patches, causing most of the leaf to dry up and resulting in early defoliation, so the disease is also called peach early defoliation disease. (2) Control methods. 1. Strengthen comprehensive management of the peach orchard. Apply more organic fertilizer, avoid
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Identification and Control Methods for the Peach Fruit Moth
Latin scientific name: Carposina niponensis Walsingham Distribution: Morphological characteristics: Adult body length 7-8 mm, wingspan 16-18 mm, grayish brown. The middle of the front wing's leading edge has a large blue-gray nearly triangular patch. The wing surface has 7 clusters of blue-brown obliquely erect scale hair tufts. The female's labial palps are longer, the male's shorter. Eggs are oval, red, with 2 or 3 rings of "corpse-shaped bristles" at the top. Larvae are 13-16 mm long, peach-red, with a brown pronotal plate. Young larvae are yellowish-white. No anal
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Occurrence Patterns and Control Methods of Jujube Witches' Broom
Jujube witches' broom is a devastating disease that should be prevented rather than cured. It is very prevalent in jujube-producing regions of China. Once a tree is infected, it rarely bears fruit the following year, and even if it does, the fruit loses its edible value; after 3~4 years the entire tree dies. I. Causes of jujube witches' broom: The main cause of jujube witches' broom is the invasion of mycoplasma-like organisms. Mycoplasma-like organisms can be spread through grafting. Under natural conditions, natural root grafting between trees can also spread the disease, and some leafhoppers are also carriers of mycoplasma-like organisms. II. Integrated control measures: 1. Select and breed disease-resistant
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Control Methods for Several Diseases of Phalaenopsis
Anthracnose is severe under high temperature and high humidity, forming brown-black round spots that gradually expand outward. Spray evenly with Previcur 800 times solution, once every 5 days, for 2 to 3 consecutive sprays, to bring the disease under control. Soft rot symptoms are rot at the leaf base, rot of the pseudobulb, with a musty bacterial odor. Control method: spray agricultural streptomycin sulfate 4000 to 5000 times solution at the early stage of disease, once every 7 days, for a total of 2 to 3 sprays. Sclerotinia disease symptoms first appear at the leaf base, with light brown, water-soaked lesions that rot and can spread to the whole
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