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How to prevent cotton red leaf stem blight? These integrated measures must be mastered
Cotton red leaf stem blight is a physiological disease. In recent years, it has occurred in large amounts in the cotton region of the Yangtze River Basin in our area. It begins at the early flowering stage, and is more severe and widespread from the full flowering stage to the boll-setting stage. In our area specifically, it occurs sporadically in July and August. It reaches its peak from mid-to-late September to October. Lightly affected plants are yellow and thin, with few and small bolls, short fiber, and poor boll opening; severely affected plants die prematurely, and the bolls cannot mature, greatly affecting yield. 1. Disease symptoms. At the early stage of the disease, red and purple spots appear on the leaves, gradually spreading until the whole leaf turns red
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The integrated fish-goose farming model can increase economic returns by 30%.
Integrated fish-goose farming is a three-dimensional ecological farming model that combines poultry rearing with fisheries management. According to comparisons, under the same conditions, integrated fish-goose farming increases economic returns by about 30% compared with raising fish or geese separately. 1. Benefits of integrated fish-goose farming. 1. Geese are fully automatic, energy-saving and highly efficient aerators for fish ponds. In integrated fish-goose farming, farmers do not need to worry about oxygen depletion in the water caused by weather changes, because whenever the weather changes, the geese will scramble to jump into the water to bathe and chase each other, churning up splashes, which has a particularly good oxygenating effect on the fish pond.
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Cotton shows disease symptoms, integrated control with multiple measures
Symptom identification of cotton Fusarium wilt and Verticillium wilt. Cotton Fusarium wilt can occur throughout the entire growth and development period of cotton, but it occurs more severely at the seedling stage. If favorable conditions occur, it can also break out heavily at the adult plant stage. Sudden wilt type: leaves suddenly lose water, droop and wilt, leaf color is dark green, leaves become soft and thin, the whole plant dries green and dies, but leaves generally do not fall off, and petioles bend. Yellowing type: can occur at both the seedling stage and the adult plant stage. The yellowing type mostly starts from the leaf margins, with part or all of the leaf turning yellow, and finally the leaf dies or falls off, while the petiole
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Detailed Explanation of Integrated Control Techniques for Ginger Bacterial Wilt
In recent years, ginger bacterial wilt has commonly occurred in ginger-producing areas. The disease generally appears in mid-to-late June (after the seed ginger is dug up). In the early stage of the disease, the main symptoms are dead seedlings and rotted hills, and it occurs until the harvest season. In mild cases, the rate of dead hills reaches 30-40%, and in severe cases, the rate of dead hills reaches 80%, causing serious yield reduction and even total crop failure. The pathogen of ginger bacterial wilt can overwinter in seed ginger and soil. When suitable temperatures occur, it spreads through flowing water and underground pests. The pathogen invades through the natural openings or wounds of ginger, causing the collapse and rotting of ginger tissues, and ultimately leading to the death of the whole plant. Therefore, when ginger is planted continuously in the same plot, the
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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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Occurrence and Damage Characteristics of Tea Tussock Moth and Integrated Control Methods
In recent years, with the development of pollution-free tea and organic tea production, the frequency and amount of chemical pesticides used in tea gardens have decreased, and some tea gardens even do not use chemical pesticides, resulting in aggravated damage by the tea tussock moth in a short period. In the county where the author works, tea tussock moth damage has occurred for several consecutive years, and after being damaged, the tea plants were left with only bare branches, greatly affecting the economic income of tea farmers. 1. Damage symptoms: The tea tussock moth larvae bite and feed on leaves, causing leaf notches and bare branches. 1st-2nd instar larvae gather on the underside of leaves to feed on the mesophyll, leaving only the epidermis and veins, and the damaged leaves appear transparent
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How to prevent and control bee diseases in spring? A detailed explanation of integrated control measures
The occurrence of bee diseases is directly related to beekeeping and management techniques. Once a disease breaks out, it will inevitably affect colony growth and economic returns. Especially in northern China, where the temperature difference between early and late spring is large and nectar and pollen sources are scarce, bee colonies are most prone to bee diseases. Therefore, in spring, the measure of "prevention first, treatment as a supplement" should be used to control the occurrence of bee diseases. Selection and treatment of apiary sites The basic conditions for beekeepers when choosing a site should be shelter from the wind, facing the sun, and dry terrain. In spring, choose low mountain areas or cutover land with many willow species and mainly Aceraceae plants. Only
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Key Points of High-Yield Technology for Integrated Fish-Lotus Culture in Ponds
0. Introduction The grid-pond fish-lotus integrated culture technology involves partitioning hardened lotus ponds with roof tiles, hard boards, etc. into small grids of 2-4 sq m each, and planting lotus within the grids. On average, each mu of water surface produces 0.5 wan kg of lotus and 400-450 kg of fish, with a net benefit of over 10,000 yuan per mu. This technology can utilize abandoned pits, wasteland, riverbank land, and scattered marginal land to build grid-pond fish-lotus integrated culture systems. It features small investment, low cost, quick results, and high efficiency, making it suitable for widespread development by rural households. It can both increase economic income and improve market
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How to treat swine winter diarrhea? A detailed explanation of integrated Chinese and Western medicine therapy
Porcine epidemic diarrhea in winter, commonly known as winter diarrhea, has its peak incidence from mid-December each year to mid-January of the following year; it strikes suddenly, spreads over a wide area and spreads rapidly; the incidence rate is high, seriously affecting the growth and development of pigs. 1. Symptoms The incubation period of the disease is generally 12-18 h. After infection, adult pigs show symptoms of watery diarrhea; the feces are initially grayish-white, gradually becoming yellowish-green, with an offensive fishy odor. Abdominal distension, vomiting, body temperature rises to 40-41°C in the initial stage, and once the diarrhea passes, the body temperature drops. Thirst and a desire to drink. 10 days
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Occurrence and Integrated Control Methods of Gummosis in Goji Berry
Brown lesions appeared on the branches and trunks after 15 d, along with a grayish-white mold layer, while no disease developed from the other inoculated fungi. This result is consistent with the findings of the Ningxia Academy of Agricultural Sciences. Based on the field symptom characteristics and isolation results, it is considered that Clonostachys is the pathogenic fungus causing gummosis, while Alternaria and Fusarium are saprophytic fungi of secondary infection. 3 Disease occurrence patterns 3.1 Overwintering of the pathogen and transmission routes In November, diseased goji branches and trunks with lesions were placed on the field surface and in soil at 20 m-30 cm underground respectively, then retrieved in April of the following year for isolation and culture.
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