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How to treat pig lice? Peach leaf decoction works well
In summer and autumn, pigs are prone to pig lice, which not only affects the pigs' calm and hygiene, but also hinders their growth and development. The method to prevent and treat pig lice is: take 1000 grams of fresh peach leaves, add 2000 milliliters of water and boil, take the cooled filtrate, wash the places on the pig's body where lice are present, and wash continuously twice, then all the pig lice can be killed, and the lice eggs will also be destroyed. If cattle have cattle lice, this method can also be used to kill them.
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How to control Cercospora leaf spot on Japanese honeysuckle
Cercospora leaf spot of Japanese honeysuckle (Cercospora rhamni). (1) Damage: it affects the leaves, and in summer, from July to August, the disease is severe; after onset, the spots on the leaves are round or, restricted by the leaf veins, polygonal, yellow-brown, and in humid conditions gray mold-like growth appears on the underside. (2) Control method: remove diseased branches and leaves to reduce the source of the pathogen; spray Bordeaux mixture at 1:1.5:200 in the early stage of the disease, once every 7-10 days, for 2-3 times in a row.
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Symptoms and Control Methods of Alternaria Leaf Spot on Impatiens
[Symptoms]The spots on affected leaves are round to oval, dark brown, slightly zonate, 2-10 mm in diameter, with a slightly darker margin. Some spots may expand and merge into patches, bearing a pale green or olive-black mold-like growth, which consists of the pathogen's conidiophores and conidia. The older leaves in the middle and lower parts of the plant are more susceptible; in severe cases, the diseased leaves shrivel and die. [Pathogen]Alternaria tenuis Nees., belonging to Deuteromycotina, genus Alternaria, a fungal pathogen. Conidiophores are erect, brown,
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How to Control Impatiens Leaf Spot Disease
I. Symptoms of Damage: Disease scientific name: Phyllosticta impatientis Fautr. Impatiens leaf spot disease mainly damages the leaves. Initially, small yellow spots appear, gradually expanding outward into circular lesions, 2-5mm in size. Later, the center of the lesion turns light brown or grayish-white, with slightly raised brown edges, and black small granules form on the surface, which are the pathogen's pycnidia. If the pathogen invades from the leaf tip or leaf margin, it causes the leaf tip to die and the leaf margin to scorch. The disease occurs in Guangdong and Yunnan from July to September. II. Morphological Characteristics of the Pathogen: The pathogen is called
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What are the damage characteristics and living habits of the jujube leaf mite?
The jujube leaf mite is commonly known as gray leaf disease, fog disease, fire dragon, etc. It damages the leaves, flowers, and fruits of jujube trees as adults and nymphs. The damaged leaves turn grayish-white, the mesophyll thickens and becomes brittle; in severe cases, the leaf epidermal cells necrose, losing photosynthetic capacity, and the leaves curl and drop easily. Damaged flower calyces cannot bloom. The jujube leaf mite produces more than 3 generations per year, overwintering as adults or nymphs within the bud scales of jujube spurs. This pest has three damage peaks per year, namely late April, late June, and mid-July, each lasting 10-15 days. It begins in early August
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How to prevent and control garlic leaf blight? These methods you need to master
Control measures for garlic leaf blight: 1) Promptly remove damaged leaves and flower stalks; 2) Strengthen field management, plant at a reasonable density, drain promptly after rain, and improve the host's disease resistance; 3) Starting at the early stage of the disease, spray 75% chlorothalonil wettable powder at 600 times dilution, or 50% iprodione wettable powder at 1500 times dilution, 64% oxadixyl-mancozeb wettable powder at 500 times dilution, 50% copper sulfate-ammonium salt wettable powder at 500 times dilution, 60% fosetyl-aluminum wettable powder at 500 times dilution, 14% copper ammonia complex aqueous solution at 300 times dilution, 1:1
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Control Methods and Techniques for Leaf Spot Disease in Japanese Euonymus
Japanese euonymus (Euonymus japonicus) is a commonly used evergreen ornamental small shrub in landscaping, with many advantages, but the occurrence of leaf spot disease causes premature leaf drop, resulting in bare branches and even death, seriously affecting the normal growth and ornamental effect of Japanese euonymus. 1. Symptoms: In the early stage of the disease, small yellow spots appear on the leaves, gradually turning yellow-brown, expanding into circular or irregular spots, with a lesion diameter of 2 mm to 10 mm. In the later stage, the lesions become gray-brown or gray-white with darker edges, and many small black dots form on the lesions. In severe cases, the lesions merge into one piece,
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How to control the Euonymus leafroller moth at the right time?
The Euonymus leafroller moth, also known as the Euonymus moth, is one of the earlier leaf-eating pests to harm garden plants. After several years of observation, the author found that in the Xi'an area its larvae appear in late March, mainly harming plants such as Euonymus japonicus (evergreen euonymus), Euonymus bungeanus (winterberry euonymus), and Euonymus fortunei (climbing euonymus). In severe cases they eat all the leaves, affecting the ornamental effect. When low-instar larvae are found causing damage, spray evenly with 50% phoxim emulsifiable concentrate or 40% omethoate emulsifiable concentrate at 1000 times dilution, or with 2.5 deltamethrin emulsifiable concentrate at 2000 times dilution; the control effect is very good.
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Detailed Guide to Indoor Cultivation Methods and Growth Habits of Littleleaf Boxwood
Littleleaf boxwood (Buxus sinica var. parvifolia) prefers a warm, semi-shaded, humid climate, is drought-tolerant, cold-tolerant and tolerant of pruning, is a shallow-rooted tree species, grows slowly and lives long, and is an excellent tree material for making bonsai. Littleleaf boxwood bonsai has dense branches and leaves and stays evergreen all year round; it is not only a good decorative plant for indoors, but also has a strong adsorption capacity for toxic gases such as sulfur dioxide, chlorine, hydrogen sulfide and hydrogen fluoride, has the ability to absorb toxic gases and purify the air, and is truly an indoor "evergreen purifier", but if it is placed indoors for a long time without sunlight, its normal growth will be affected, the new shoots will be thin and weak, and it will also be prone to diseases and insect pests.
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What are the control methods for gray leaf spot on Japanese euonymus (Euonymus japonicus)?
Control methods for gray leaf spot on Japanese euonymus: 1. Strengthen plant quarantine and use healthy seedlings. 2. Strengthen tending and management, cultivate strong seedlings, and enhance the disease resistance of the plants. 3. In autumn, winter and early spring, thoroughly remove diseased leaves and fallen diseased leaves, and burn them in a centralized manner to reduce the source of infection. 4. In the early stage of the disease, spray the plants once every 20 days with a 200-fold dilution of non-toxic high-fat film, for 3 to 4 consecutive sprays. 5. During the epidemic period of the disease, spray a 500- to 1000-fold dilution of 50% carbendazim or 75% chlorothalonil, used alternately, for 4 to 5 consecutive sprays.
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