The seedling damping-off disease is the most common and most serious disease occurring in the garden nursery, which mainly occurs in the seedling stage of the forest and flower plants. The main forest seedlings affected were pine, cedar, pine, pine, pine, ginkgo, beech, nanmu, camellia, etc.; ornamental flowers are aster, cockscomb, snapdragon, marigold, violet, carnation, Calla lily, zinnia, chrysanthemum and so on. The disease occurred in April-June, when it was cloudy and rainy and the air humidity was high. The onset of seedlings suddenly fell to death, affecting the survival rate of the seedlings, or even destroying the seedlings. Phytophthorasis is mainly caused by Rhizoctonia, Pythium, and Fusarium in fungi. The bacteria lived in the soil or on the remnants of diseased plants. Rotten sex is stronger. Can survive in the soil for a long time. It is called soil habitation. Nursery soil or shallow seedlings, improper watering in pots, improper sowing, temperature discomfort, and thin seedling growth are all conducive to the occurrence of damping-off. Continuous cropping of seedbeds or flowerbeds has caused severe disease due to high accumulation of soil bacteria. The disease is a typical soil infection. Prevention of seedling damping-off disease, first of all to do a timely ditch drainage. Excessive rainfall in spring and summer, poor draining of ditch, pond water, and excessive moisture on the seedbed will all cause germs to spread in the soil. Therefore, for the nursery with unequal seedbed height and high groundwater level, it is necessary to clear the drainage ditch so that the rain will stay dry. Miaotian is not waterlogged to facilitate the loosening of soil in the nursery. Second, timely weeding, seedlings, remove diseased seedlings. Nursery weeds should be cleared early. Seedlings are too dense to combine weeding for seedlings to promote seedlings; I grow to improve disease resistance and find out that diseased seedlings should be immediately removed. Prevent cross-infection. When the seedbed is too wet. 50-75 kilograms per acre can be used to sieve the plant ash or fire and earth ash, which is not only fertilizer, but also promote the development of seedling roots, early lignification seedling stems, and enhance resistance to disease. Again, it is time to apply drugs. Before the onset of the disease, seedlings are tender and can be mixed with 20 kg of lime powder and 80 kg of plant ash, and 100-150 kg per mu. There is a good disease prevention effect. After every 7-10 days with 0.5% Bordeaux mixture sprayed once, but also available Bu 20% ferrous sulfate solution spray. After the onset of disease, it can be diluted with 500-800 times of liquid spray and treated with propofol, thiophanate, and chlorothalonil. Once every 10 days, it can be sprayed 2-3 times, and the control effect is also very good.
Antipyretic:
Something that
reduces fever or quells it.
There are 3 classes
of antipyretic medications that are sold OTC (over-the-counter) without
prescription:
Salicylates --
aspirin (acetylsalicylic acid), choline salicylate (Arthropan), magnesium
salicylate (Arthriten), and sodium salicylate (Scot-Tussin Original);
Acetaminophen
(Tylenol); and
Nonsteroidal
anti-inflammatory drugs (NSAIDs) -- ibuprofen (Advil), naproxen (Naprosyn,
Aleve), and ketoprofen.
From anti-,
against + the Greek pyretos, fever from pyr, fire. The same root gives rise to
pyrexia, a medical term for fever.
Antipyretic, from
the Greek anti, against, and pyreticus, pertaining to fever, are substances
that reduce fever. Antipyretics cause the hypothalamus to override a
prostaglandin-induced increase in temperature. The body then works to lower the
temperature, resulting in a reduction in fever.
Most antipyretic
medications have other purposes. The most common antipyretics in the United
States are ibuprofen and aspirin, which are used primarily as pain relievers.
Non-steroidal anti-inflammatory drugs (NSAIDs) are antipyretic,
anti-inflammatory, and pain relievers.
Pain-killer:
Painkiller is any
member of the group of drugs used to achieve analgesia, relief from pain.
Analgesic drugs
act in various ways on the peripheral and central nervous systems. They are
distinct from anesthetics, which reversibly eliminate sensation. Analgesics
include paracetamol (known in North America as acetaminophen or simply APAP),
the non-steroidal anti-inflammatory drugs (NSAIDs) such as the salicylates, and
opioid drugs such as morphine and oxycodone.
In choosing
analgesics, the severity and response to other medication determines the choice
of agent; the World Health Organization (WHO) pain ladder specifies mild
analgesics as its first step.
Analgesic choice
is also determined by the type of pain: For neuropathic pain, traditional analgesics
are less effective, and there is often benefit from classes of drugs that are
not normally considered analgesics, such as tricyclic antidepressants and
anticonvulsants.
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