-
Control Methods and Key Technical Points for Deformed Fruit in Greenhouse Strawberries
(1) Promote full flower bud differentiation. Whether strawberry flower buds differentiate fully is an important factor affecting the yield and quality of greenhouse strawberries. When flower bud differentiation is good, there are more flowers, larger fruit, and fewer deformed fruit. Generally, 2 weeks before planting, root pruning, shading, nitrogen control, and removal of old leaves are started to promote
-
Control Methods for Strawberry Leather Rot, a Must-Read for Growers
In recent years, along with the optimization and adjustment of the planting structure, the strawberry cultivation area in Laizhou City has expanded rapidly. Due to continuous cropping, strawberry diseases have shown a worsening trend, especially the emergence of strawberry leather rot, which has a great impact on the yield and quality of strawberries, and in severe plots
-
Control Methods for Bump Disease in Eel Farming
Pathogen: Eimeria anguillae is the pathogen of eel bump disease, belonging to the order Microsporida. The spores are small and simple in structure. Eimeria anguillae parasitizes the muscles on the sides of the body, and the spores spread inside and outside the muscle tissue, while dissolving the surrounding tissue and causing the body surface to sink inward, presenting an uneven, bumpy appearance, hence
-
Control Methods for Ichthyophthirius multifiliis Disease in Farmed Yellow Catfish
(1) Pathogen: Ichthyophthirius multifiliis. (2) Symptoms: On the skin, fins and gills of diseased fish, small white cyst-like spots can be seen with the naked eye; in severe cases, the body surface appears to be covered with a white film. Diseased fish respond sluggishly or float at the water surface. Due to bacterial infection at the affected sites, the fish body surface becomes inflamed, or locally necrotic, scales fall off, fins split diagonally, gill epithelium proliferates, and death occurs due to impaired movement and difficulty breathing in the gill area.
-
What are the prevention and control methods for enteritis in yellow catfish?
(1) Pathogen: Aeromonas punctata. (2) Symptoms: The diseased fish has a distended abdomen and red, swollen anus; when the abdomen is gently pressed, yellow mucus flows from the anus, and the diseased fish swims alone away from the group. When the abdomen is cut open, in mildly affected fish the esophagus and anterior intestine are congested and inflamed, while in severe cases the entire intestine is inflamed and pale red
-
Control methods for ciliate disease in mandarin fish aquaculture
Ciliate disease in mandarin fish generally occurs from the first day after hatching until the fish reaches a body length of 5-8 cm. When the water temperature is 20°C-27°C, parasites such as Trichodina are often found on the body surface of mandarin fish. Before the fish reaches 3 cm, they are mostly distributed over the entire body and in the oral cavity; after 3 cm, they concentrate in the oral cavity,
-
Control methods for chilodonelliasis and trichodiniasis in freshwater white pomfret during the overwintering period
1. Pathogens: Chilodonella cyprini, Trichodina. 2. Symptoms: Both parasites attach to the skin and gills of fish, stimulating the secretion of large amounts of mucus, causing a pale blue film to form on the skin surface of diseased fish (chilodonelliasis) or a white film to appear on the fins, head, and body surface (trichodiniasis).
-
Prevention and Control Methods and Technical Key Points for Feather-Pecking Disorder in Captive Hwamei Birds
The so-called hwamei feather-pecking disorder refers to a small number of hwamei birds during ordinary keeping that, due to various causes, bite off their own tail feathers, wing feathers, back feathers and so on, one by one (sometimes called self-biting disease), so that the tail feathers are sometimes pulled until they are bare and sparse, curled
-
Control Methods for Taura Syndrome in Whiteleg Shrimp
Taura syndrome is caused by infection with Taura syndrome virus, also known as red body disease (typically, viral infection causes the body to turn red while the appendages do not; bacterial infection causes the appendages to turn red while the body does not; when both the body and appendages turn red, it may be a mixed infection). Sick shrimp stop feeding and swim slowly at the water surface
-
Control Methods for Barley-Yellow Plague in Grass Carp Farming
Barley yellow and White Dew heart are the two key seasons when grass carp diseases occur at a high rate. At present, as air and water temperatures gradually rise, grass carp have also entered the season of high disease incidence. Grass carp barley-yellow plague refers to the mass mortality of grass carp caused by mixed infection of the two major diseases, grass carp branchial necrosis and red skin disease, around the time of barley yellow.
条件筛选