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Occurrence Patterns and Control Methods of the Pear Buprestid Beetle
The pear buprestid beetle begins eclosing in late April, and in early to mid-May the adults chew an oval-round hole to emerge. After emerging, the adults feed on leaves during the day, rest quietly on the leaves in the morning and evening, and when startled have the habit of dropping to the ground and feigning death. About 10 days after emergence and activity, the adults begin to lay eggs; before laying, they crawl along the trunk and insert their ovipositors into rough, raised cracks in the bark to lay eggs, mostly at the fork junctions of branches and trunks that are 2 years old or older, laying 2-3 eggs per site, with each female able to lay 20-40 eggs. Mid to late May is the peak egg-laying period, and early June is the peak hatching period. After hatching, the larvae first bore into the cortex
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Pear orchard pest and disease control methods and key technical points
Currently the pear orchard is in full bloom. At the end of the pear tree flowering period, fruit growers should promptly control the following pests and diseases: For pear gall midge and pear psylla, according to the flowering situation of the pear trees, spray for control promptly when flowering is basically finished. For the pesticide, 10% Shenjian 1500x solution plus 10% Shijia Bichlor 2000x solution can be used. For pear rust and pear scab, spray for control promptly at the end of pear tree flowering. For the pesticide, 15% Fenxiuning 1500x solution or 45% Dason 800-1000x solution, plus 10% Shigao 6000x solution, can be used.
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How to control the peach fruit borer? A detailed guide to practical control methods
The peach fruit borer, also known as the peach stem borer or peach spotted borer, is an omnivorous pest found throughout the country. Its larvae damage the fruit or seeds of many fruit trees, including winter jujube, peach, plum, persimmon, chestnut, apple, pear, pomegranate and hawthorn. When fruit is damaged, it becomes filled with insect droppings and rots; in severe cases, the impact on both yield and quality is very great. Control methods: 1. In early spring, scrape the bark and plug tree holes. Use black light traps to kill adult moths. 2. During the adult emergence period and peak egg-laying period, spray a 1000-fold dilution of 50% phoxim, or a 1200-fold dilution of 50% dichlorvos emulsion
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How to Distinguish Swine Dysentery from Diarrhea? A Detailed Guide to Integrated Prevention and Control Methods
Dysentery and diarrhea in pigs are relatively common, especially in large-scale pig farms. On some pig farms, the harm caused by swine dysentery and diarrhea is quite serious, particularly piglet dysentery and diarrhea, which have become key factors restricting piglet survival rates. Improving the ability to clinically distinguish swine dysentery from diarrhea is of great significance for grassroots animal disease prevention and control workers and large-scale farm (household) owners to promptly adopt prevention and control measures. 1 Differences and Classification of Dysentery and Diarrhea. Dysentery and diarrhea are both clinical symptoms. What is commonly called loose stool mostly
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What are the disease prevention and control methods for large-scale chicken farms?
Scientific management practices and a strict disease prevention system are the foundation for controlling the occurrence of various infectious diseases. In terms of management, an all-in-all-out system should be adopted, with brooding chickens, growing chickens, and laying hens raised in separate zones. Manure should be concentrated in a manure yard far from the chicken houses, with dedicated personnel, vehicles, and roads assigned. It is strictly forbidden for poultry keepers to cross-contaminate with the manure yard or manure removal personnel. Chicken manure should be removed the same day and transported out of the farm area the same day, strictly controlling pollution caused by chicken manure. At the same time, daily environmental cleaning and disinfection of the chicken farm and disinfection of chicken houses with chickens inside should be maintained. Poultry keepers and management personnel adopt
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Common Diseases of Orchids and Their Control Methods
Viruses are relatively primitive organisms. They have no cellular structure and can only replicate by parasitizing host cells. Once infected, there is generally no specific drug for control, so viral diseases can only be prevented by improving environmental hygiene and raising cultivation standards. More than 20 viruses capable of infecting orchids have been discovered so far. The more common ones include Cymbidium mosaic virus (CyMV), Cucumber mosaic virus (CMV), Dendrobium mosaic virus (DeMV), and Cymbidium ringspot virus (CyRV). Methods for controlling viral diseases:
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Occurrence patterns and control methods of black locust canker disease
Black locust canker disease is a major trunk and branch disease of black locust (Robinia pseudoacacia), affecting both young and mature trees. The disease mostly occurs in the bark of the main trunk. After trees are affected, lesions of varying sizes mostly appear on the lower part of the main trunk and at branch forks, and the lesions are spindle-shaped, oval or irregular. On young trees, the diseased part of the main trunk is cankerous and slightly sunken; on large trees, the bark of the main trunk is thick, and the diseased part is water-soaked with no obvious sunken areas. The disease spreads faster lengthwise than crosswise. When the diseased area encircles the trunk completely, the tree withers and dies. In the later stage, at the lenticels and bark cracks of the diseased part
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Symptom Identification and Control Methods of Black Locust Mosaic Virus Disease
[Distribution and Damage] Quite common in Beijing and Shandong. It affects the growth of young trees, causing dwarfism. [Symptoms] Irregular line patterns appear on the leaf surface, distributed without fixed positions, with beautiful patterns. Some leaves become smaller and lighter in color. If not carefully observed, it is easily overlooked. When adventitious buds in the leaf axils sprout, weak branches and small clustered branches and leaves are produced. In Eastern Europe, Central Europe or the United States, leaves become smaller, veins become transparent, petioles are short, plants are prone to cold damage, and there are often multiple branches and yellowing. The mosaic occurring in the United Kingdom appears mottled, with twisted leaves and curved wood.
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What are the characteristics and control methods of the black locust moth?
The black locust moth is commonly known as the black locust bark borer. It mainly damages black locust (Robinia pseudoacacia). Its larvae bore into and feed on the bark of the trunk; the affected areas develop hyperplastic swelling, the bark splits and cracks, the tissue beneath the bark becomes filled with rotting matter, and the bark crevices are strung together with frass; this can weaken the tree and even kill the whole plant. Adult: female moth body length 7-10 mm, wingspan 17-22 mm, male moth slightly smaller; body grayish white or dark brown, thorax and wing base plates grayish white; forewings grayish white mixed with grayish brown or dark brown scales, with an upright tuft of dark brown scales at the wing base, and 2 oblique rows of scale tufts on the wing surface
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What are the commonly used chemical control methods for stored-grain pests?
1. Pirimiphos-methyl: Pirimiphos-methyl is an internationally preferred grain protectant, with the chemical name methyl pyrimidinyl (thio) phosphate, and the usual dose for controlling stored-grain pests is generally 5 ppm. 2. Baolianglin: Baolianglin is a grain protectant developed by the Chengdu Grain Storage Research Institute of the State Administration of Grain, and it has a very good control effect on stored-grain pests, especially suitable for rural grain storage. The ratio of Baolianglin to raw grain is 1:2500. That is, each 100-gram bag of Baolianglin can be mixed with 250 kg of raw grain.
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